The 57th Annual Musculoskeletal Tumor Meeting of
the Japanese Orthopaedic Association
Held in Fukui, July 11 and 12, 2024
On-demand sessions: August 19 - September 23, 2024
Congress President, Akihiko Matsumine
Department of Orthopaedics and Rehabilitation Medicine, Unit of Surgery,
Division of Medicine, Faculty of Medical Sciences, University of Fukui
1st Day July 11 Room 1
8：00 〜 9：50
Symposium 1
Moderators A. Kawai, H. Hiraga
Accelerating genomic medicine for bone and soft tissue tumors: Current status and challenges
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RNA panel plays a role in a new era in bone and soft tissue tumor diagnosis
Harumi Nakamura, et al., Osaka International Cancer Institute…S1455
How to utilize GenMine TOP in sarcoma treatment
Hiroshi Kobayashi, Dept. of Orthop. Surg., The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1455
Utilization and application of CGP data in bone and soft tissue sarcoma
Koichi Ogura, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1456
Comparison of tumor microenvironment between young and old patients by RNA-seq
Akane Ariga, et al., Dept. of Orthop. and Spinal Surg.,
Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental Univ.…S1456
Proteogenomic analysis of bone and soft tissue tumors
Shuhei Iwata, et al., Div. of Rare Cancer Research,
National Cancer Center Research Institute…S1457
The utility of clinical sequence by cancer genome panel in the treatment of bone and soft
tissue tumor
Eiji Nakata, et al., Dept. of Orthop. Surg.,
Science of Functional Recovery and Reconstruction, Faculty of Medicine,
Dentistry, and Pharmaceutical Sciences, Okayama Univ.…S1457

10：00 〜 12：10
Symposium 2
Moderators A. Kawai, H. Minami
Sarcoma treatment across departments: Practicalities and challenges
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Progress in multidisciplinary sarcoma treatment and research: Loneliness and elation as
orthopaedic oncologists
Yoshihiro Nishida, et al., Dept. of Rehabilitation, Nagoya Univ. Hosp.…S1458
Retroperitoneal sarcoma and urologic organ sarcomas: Practices and challenges
Hiroyuki Nishiyama, Dept. of Urol. Tsukuba Univ.…S1458
Practical treatment of uterine sarcoma and its challenges
Kosei Hasegawa, Dept. of Gyne. Oncology, Saitama International Medical Center,
Saitama Medical Univ.…S1459
Multidisciplinary surgical approach to retroperitoneal sarcoma
Yukihiro Yokoyama, Nagoya Univ., Dept. of Surg.…S1459
Medical therapy for sarcoma: Current status and future prospects
Masashi Ando, Aichi Cancer Center…S1460
Multidisciplinary collaboration in the JCCG rhabdomyosarcoma clinical study:
Central diagnosis and consultation
Atsushi Ogawa, Niigata Cancer Center Hosp.…S1460― 52 ―

12：30 〜 13：30
Luncheon seminar 1
Moderator K. Honoki
Hypophosphatasia “Must Rule Out disease when low ALP levels are accompanied by systemic
symptoms such as pain and motor dysfunction”
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Dental symptoms and support in adult HPP
Hiroyuki Nakamura, Dept. of Oral and Maxillofacial Surg. Univ. of the Ryukyus Hosp.…S1461
Adult hypophosphatasia
Junichi Fukushi, Dept. of Orthop. Surg. and Rheumatology, Kyushu Medical Center…S1461

13：40 〜 14：40
1-1-SL1-1

Special lecture 1

Moderator H. Yoshikawa

New idea drawn from history of bone and soft tissue sarcomas
Atsumasa Uchida, Dept. of Orthop. Surg., Mie Univ.…S1462

14：50 〜 16：50
Panel discussion 1
Moderators Y. Nishida, H. Kawashima
New developments in basic research on bone and soft tissue tumors
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Emerging trends in genomic research of bone and soft tissue tumors: Toward clinicalimplementation of whole genome analysis
Makoto Hirata, Dept. of Genet. Med.& Services, National Cancer Center Hosp.…S1463
Development of novel treatment modalities for bone and soft-tissue sarcomas
Tomohiro Fujiwara, et al., Dept. of Orthop. Surg., Science of Functional Recovery andReconstruction, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences,
Okayama Univ.…S1463
Targeting epigenomics in soft tissue sarcoma
Hidetatsu Otani, et al., Dept. of Orthop. Surg., Graduate School of Medicine, Osaka Univ.…S1464
Elucidation of molecular mechanisms of the first stage of synovial sarcoma development for
drug discovery
Kenji Iwasaki, Univ. of Tsukuba/TARA…S1464
Photodynamic therapy using 5-aminolevulinic acid may be effective in bone and soft
tissue sarcoma
Ryohei Adachi, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1465
Role of immune cells in bone and soft tissue tumor
Naoki Oike, et al., Div. of Orthop. Surg., Dept. of Regenerative and Transplant Medicine,
Niigata Univ. Graduate School of Medical and Dental Sciences…S1465
Investigating the tumor microenvironment and genetic profile of infiltrative soft
tissue sarcoma
Akane Ariga, et al., Dept. of Orthop. and Spinal Surg.,
Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental Univ.…S1466

1st Day July 11 Room 2
8：00 〜 9：00
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Moderator T. Nojima

Pathology of lipomatous tumors
Mana Fukushima, Dept. of Tumor Pathol., Univ. of Fukui…S1467

9：10 〜 10：10
1-2-IL1-1

Educational lecture 1

Invited lecture 1

Moderator E. Konishi

Development of pharmacological inhibitors of the TAZ-YAP-TEAD Hippo pathway
Brian P. Rubin, Cleveland Clinic, Cleveland, OH, USA…S1467― 53 ―

10：20 〜 11：20
1-2-IL2-1

1-2-BTC-3

Luncheon seminar 2

Moderator A. Ogose

Diagnostic error in bone and soft tissue tumor: Differentiation from osteoporotic fracture
Toshiharu Shirai, Dept. of Orthop., Graduate School of Medical Science,
Kyoto Prefectural Univ. of Medicine…S1469

13：40 〜 15：50
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Moderator Y. Oda

T umor microenvironment analysis in osteosarcoma predicts therapeutic responseto chemotherapy Anne Gomez-Mascard, et al., Institut Universitaire du Cancer de Toulouse,
Toulouse, France…S1468

12：30 〜 13：30
1-2-LS2-1

Invited lecture 2

Bone Tumor Club

Bone tumor of left Vth rib
Soft tissue tumor of left foot joint

Moderators K. Yamashita, Y. Izubuchi
Hiroaki Kanda, et al., Dept. Path. Saitama Cancer Center…S1470

Yuko Kakuda, et al., Div. of Pathol., Shizuoka Cancer Center…S1470
Bone tumor of the left proximal femur
Yoshihiro Araki, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1471
Moderators H. Kanda, Y. Watanabe

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1-2-BTC-5

A case of soft tissue tumor arising in the lower leg
Yoshiya Sugiura, et al., Dept. of Pathol., Toho Univ. (Sakura)…S1471
A case of soft tissue tumor arising on the posterior region of right thigh
Aina Yamaguchi, et al., Div. Diagn. Pathol./Surg. Pathol., Univ. of Fukui…S1472

16：00 〜 17：00
1-2-AS1-1

1-2-CR-2

1-2-CR-3
1-2-CR-4

Moderator K. Hiraoka

Pros and cons of biological reconstruction
Katsuhiro Hayashi, Dept. of Orthop. Surg., Kanazawa Univ. Hosp./
Div. of Health Sciences, Graduate School of Medical Sciences, Kanazawa Univ.…S1473

17：10 〜 19：00
1-2-CR-1

Afternoon seminar 1

Clinicopathologic conference
Moderators M. Fukushima, E. Konishi, K. Nakanishi, T. Tanaka

Right ankle tumor
Sakura Shiraishi, et al., Dept. of Anatomic Pathology, Pathological Sciences,
Graduate School of Medical Sciences, Kyushu Univ.…S1474
Abscopal effect following proton beam radiotherapy for recurrent dedifferentiatedchondrosarcoma: A case reportMichiyuki Hakozaki, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1474
The tumor around left ulna: A case report
Tomohisa Sakai, et al., Rare Cancer Center, Nagoya Univ. Hosp.…S1475
A case of soft tissue tumor of the shoulder
Masayuki Morishita, et al., Dept. of Orthop. Surg., Kobe Childrenʼs Hosp.…S1475

1st Day July 11 Room 3
8：00 〜 9：00
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Educational lecture 2

Moderator H. Tsuchiya

Onco-orthopaedics: A novel field for musculoskeletal oncologists to thrive
Hirotaka Kawano, Dept. of Orthop. Surg., Teikyo Univ.…S1476― 54 ―

9：10 〜 11：20
Symposium 3
Moderators H. Katagiri, Y. Matsumoto
Solving multivariable functions for bone metastasis treatment
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Update of new Katagiri score and its clinical applications
Hirohisa Katagiri, et al., Dept. of Orthop. Surg., Shizuoka Cancer Center…S1477
The changes in the treatment for bone metastases over the past 20 years
Naoki Takada, et al., Dept. of Orthop. Surg., Shizuoka Cancer Center…S1477
Does re-ossification after palliative radiotherapy for spinal bone metastases help maintainvertebral body height?
Munehisa Kito, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1478
The relationship between frailty, nutritional status and PS, prognosis in the palliative surgery
for spinal metastasis
Kazuto Miura, et al., Dept. of Spine and Spinal Cord Surg., Nagaoka Red Cross Hosp.…S1478
Surgical outcomes and characteristics of cervical metastasis in metastatic spinal tumors
Ukei Anazawa, et al., Dept. of Orthop. Surg.,
Tokyo Dental College Ichikawa General Hosp.…S1479
Repeated surgery after tumor resection and reconstruction for metastatic bone tumors in
the extremities
Shinji Miwa, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1479
Surgical management of peri-acetabular metastases including classical method to minimal
invasive surgery
Jungo Imanishi, et al., Dept. of Orthop. Surg., Teikyo Univ.…S1480

12：30 〜 13：30
1-3-LS3-1

Luncheon seminar 3

Moderator K. Ae

Surgical techniques of lower limb reconstruction using tumor megaprothesis: Tips & pitfalls
Eisuke Kobayashi, Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1481

13：40 〜 15：20
Panel discussion 2
Moderators J. Nishida, K. Honoki
Reconstruction for malignant bone and soft-tissue tumors of the humerus
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Clavicula pro humero reconstruction after wide resection of the proximal humerus
Satoshi Tsukushi, et al., Dept. of Orthop. Surg., Aichi Cancer Center…S1482
Clinical outcome of reconstruction using frozen autograft for humeral malignant bone tumors
Katsuhiro Hayashi, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1482
Development and efficacy of a custom-made artificial diaphysis for humeral metastatic bonetumors for good upper limb function
Taketoshi Yasuda, et al., Dept. of Orthop. Surg., Faculty of Medicine, Univ. of Toyama…S1483
2 cases of total humeral replacement with reverse and non-reverse shoulder arthroplasty
Kunihiro Asanuma, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1483
Proximal humerus reconstruction after tumor resection
Yoshikuni Mimata, et al., Dept. of Orthop. Surg., Iwate Medical Univ.…S1484
Reconstruction after resection of malignant bone tumor of the proximal humerus
Michiro Susa, et al., Dept. of Orthop. Surg., National Defense Medical College…S1484

15：30 〜 17：00
Symposium 4
The next step in sarcoma treatment
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Moderators H. Morioka, A. Ogose

Innovation and translational research of oncolytic virotherapy for musculoskeletal sarcoma
using Surv.m-CRA-1
Satoshi Nagano, et al., Dept. of Phys Ther, Sch of Health Sci,
Faculty of Med, Kagoshima Univ.…S1485― 55 ―

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1-3-SY4-4
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Genetically modified T-cell therapy targeting cancer/testis antigen: Expectations forsarcoma treatment
Mikiya Ishihara, Dept. of Med. Oncol., Osaka International Cancer Institute…S1485
CAR-T cell therapy for synovial sarcoma
Tomohiro Miyazaki, et al., Div. of Orthop. Surg., Dept. of Regenerative andTransplant Medicine, Niigata Univ. Graduate School of Medical and Dental Sciences…S1486
The future of Immunotherapy for sarcoma
Tomohide Tsukahara, et al., Dept. of Pathology, Sapporo Medical Univ.…S1486
Potentiality of boron neutron capture therapy (BNCT) for bone invasion of cancer
Takuya Fujimoto, et al., Dept. of Orthop. Surg., Hyogo Cancer Center…S1487
Efficacy of radiofrequency ablation for oligometastases of bone and soft tissue sarcoma:
Case series
Kenji Sato, et al., Dept. of Orthop. Surg., Teikyo Univ.…S1487

1st Day July 11 Room 4
8：00 〜 9：00
Main program 1
Diagnosis of bone and soft-tissue tumors
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1-4-MO1-2
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1-4-MO1-4

1-4-MO1-5★

1-4-MO1-6★

Increasing proportion of elderly patients in malignant soft tissue tumor surgeries over the
Past 30 years
Norio Kurosawa, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1488
Accuracy of CT-guided core-needle biopsy in diagnosis of bone and soft tissue lesions
Tomoya Matsunobu, et al., Dept. of Orthop. Surg., Kyushu Rosai Hosp.…S1488
Characteristics and clinical course of soft tissue sarcoma with intra-tumoral hematoma
Tomohisa Sakai, et al., Dept. of Orthop./Rheumatology, Musculoskeletal andCutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1489
PET/MRI-based differentiation between atypical lipomatous tumor anddedifferentiated liposarcoma
Itaru Ogawa, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1489
A new deep learning algorithm for detecting spinal metastases on CT images
Masataka Motohashi, et al., Dept. of Orthop. and Spinal Surg.,
Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental Univ.…S1490
Normal knee X-ray image generation using conditional generative adversarial
network (cGAN)
Nguyen Hoan, et al., Japan Cash Machine CO., LTD…S1490

9：10 〜 10：10
1-4-EL3-1

Moderator T. Torigoe

Educational lecture 4

Moderator T. Kunisada

The insight of bone and soft tissue tumor surgery, its principles and ingenuity
Keisuke Ae, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1491

12：30 〜 13：30
1-4-LS4-1

Educational lecture 3

Standard systemic therapy and clinical genomic profiling testing for bone and soft
tissue sarcomas
Yoshinori Imamura, Cancer Care Promotion Center/
Dept. of Hematology and Oncology, Univ. of Fukui …S1491

10：20 〜 11：20
1-4-EL4-1

Moderators S. Shimose, K. Asanuma

Luncheon seminar 4

Moderator Y. Nishida

Endoprosthetic reconstructions after musculoskeletal tumor resection
Robert Nakayama, Dept. of Orthop. Surg., Keio Univ.…S1492― 56 ―

13：40 〜 14：40
1-4-EL5-1

Educational lecture 6

Moderator N. Araki

Current status and future prospects of carbon ion radiotherapy

16：00 〜 17：00
1-4-AS2-1

Moderator K. Tanaka

Development of CAR-T therapy for solid tumor
Yoshihiro Miyahara, Dept. of Perso. Ca. Immuno,
Mie Univ. Graduate School of Medicine…S1492

14：50 〜 15：50
1-4-EL6-1

Educational lecture 5

Afternoon seminar 2

Reiko Imai, QST Hosp.…S1493
Moderator K. Tanaka

The arrival of the genomic era: What kind of medical care should we aim for?
Eiji Nakata, Dept. of Musculoskeletal Traumatology, Faculty of Medicine,
Dentistry, and Pharmaceutical Sciences, Okayama Univ.…S1493

1st Day July 11 Room 5
8：00 〜 9：00
Main program 2Moderators T. Hiruma, T. Nakamura
Treatment strategies for malignant bone and soft tissue tumors in the ver y elderly
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1-5-MO2-2
1-5-MO2-3
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Clinical outcomes of patients with primary malignant bone and soft tissue tumors aged
80 years or older
Kazuhiko Hashimoto, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1494
W ide excision alone for super elderly patients aged > 80 years old with soft-tissue sarcoma
Yasunori Tome, et al., Orthop. Surg., Graduate School of Medicine, Univ. of the Ryukyus…S1494
Current management and outcome of bone and soft tissue sarcoma among the oldest-old
Masanori Okamoto, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1495
Risk factors for postoperative complications after resection of soft tissue sarcoma inelderly patients
Norio Kurosawa, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1495
Clinical outcomes in elderly patients over 80 years with soft tissue sarcomas
Hideki Nishimura, et al., Dept. of Orthop. Surg., Kagawa Univ.…S1496
Surgical outcomes of soft tissue sarcoma in the super-elderly patients
Ryu Terauchi, et al., Dept. of Orthop. Graduate School of Medical Science,
Kyoto Prefectural Univ. of Medicine…S1496

9：10 〜 10：30
Main program 3
Diagnosis and treatment of “intermediate” categor y of lesions
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1-5-MO3-4
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Moderators K. Okada, T. Gokita

Refractory cases with desmoid tumors: Real world evidence in a single institution
Yoshihiro Nishida, et al., Dept. of Rehabilitation, Nagoya Univ. Hosp.…S1497
Clinical outcome of patients with extra-abdominal desmoid fibromatosis
Keisuke Masada, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1497
The role of tartrate-resistant acid phosphatase-5b in the differential diagnosis of bone andsoft tissue tumors
Seiichi Matsumoto, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1498
TRACP-5b as a biomarker for long-term denosumab treatment of unresectable giant celltumor of bone
Shigeki Kakunaga, et al., Osaka International Cancer Institute…S1498
Neoadjuvant single-dose denosumab for surgical curettage to giant cell tumor of bone
Hiroaki Kimura, et al., Dept. of Orthop. Surg., Nagoya City Univ.,
Graduate School of Medical Sciences…S1499― 57 ―

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1-5-MO3-7

1-5-MO3-8

Giant cell tumor of bone with secondary aneurysmal bone cysts does not have a higher riskof local recurrence
Shinji Tsukamoto, et al., Dept. of Orthop. Surg., Nara Medical Univ.…S1499
Epithelioid hemangioma of bone harboring FOS and FOSB gene rearrangements: A clinicaland molecular study
Yusuke Tsuda, et al., Dept. of Orthop. Surg.,
The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1500
Analysis of dedifferentiation rates in atypical lipomatous tumor/
Well differentiated liposarcoma
Masatake Matsuoka, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1500

10：40 〜 11：40
Main program 4
Cancer locomotive syndrome
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1-5-MO4-2
1-5-MO4-3
1-5-MO4-4
1-5-MO4-5
1-5-MO4-6

Impact of general and functional status to survival outcome and complication in patients with
soft-tissue sarcoma
Ayana Kondo, et al., Dept. of Orthop. Surg., Science of Functional Recovery andReconstruction, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences,
Okayama Univ.…S1501
A study of locomotor comorbidity in perioperative cancer patients
Yoshimi Katayama, et al., Central Rehabilitation Service, Okayama Univ. Hosp.…S1501
Severe locomotive syndrome may cause sarcopenia in cancer patients
Masahiro Hirahata, et al., Dept. of Orthop. Surg., Teikyo Univ.…S1502
Physical activity and quality of life in patients with metastatic bone tumors treated withsurgery and rehabilitation
Natsuko Fukuoka, et al., Dept. of Orthop. Surg., Kagawa Univ.…S1502
Initiatives against osteoporosis in cancer patients: Enhancing quality of life and cancer
treatment outcomes
Nokitaka Setsu, et al., Dept. of Orthop. Surg., Kyushu Cancer Center…S1503
Considering cancer locomotive syndrome and osteoporosis through the prescription ofthoracolumbar soft brace
Hirotaka Koyanagi, et al., Dept. of Orthop. Surg., Saitama Cancer Center…S1503

12：30 〜 13：30
1-5-LS5-1

Moderators Y. Shinoda, Y. Yoshida

Luncheon seminar 5

Moderator T. Yonemoto

The role and management of trabectedin in the treatment of malignant soft tissue tumors
Satoshi Takenaka, Musculoskeletal Oncology Service,
Osaka International Cancer Institute…S1504

13：40 〜 14：40
Main program 5
Long-term results of tumor prostheses and handling of infections
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1-5-MO5-2
1-5-MO5-3
1-5-MO5-4
1-5-MO5-5

Moderators S. Abe, T. Shirai

Clinical outcome in patients with soft tissue sarcoma receiving prosthetic replacement at thelower extremities
Tomoki Nakamura, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1505
Long-term results after endoprosthetic replacement for musculoskeletal tumors:
Complications and their treatment
Hiroshi Hatano, et al., Niigata Cancer Center Hosp.…S1505
A study of tumor prosthesis with compress-type compressive osseointegration
Naomasa Fukase, et al., Dept. of Orthop. Surg., Kobe Univ. Graduate School of Medicine…S1506
Clinical feature and treatment for periprosthetic infection after endoprosthetic replacement in
Tetsuro Yamagishi, et al., Niigata Cancer Center Hosp.…S1506
musculoskeletal tumor
Novel reconstruction method by mega-prosthesis wrapped with vancomycin-containing
cement after resection of malignancies
Kazuhiko Hashimoto, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1507― 58 ―

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T wo-stage revision surgery using compressive endoprosthetic osseointegration fixation for
megaprosthetic joint infection
Taisuke Matsuyama, et al., Dept. of Orthop. Surg., Teikyo Univ.…S1507

14：50 〜 15：40
Main program 6
Treatment of pelvic, retroperitoneal and spinal tumors
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1-5-MO6-2

1-5-MO6-3
1-5-MO6-4★

1-5-MO6-5

Is sarculator useful in predicting prognosis of retroperitoneal sarcoma?
Akira Shiga, et al., Kanagawa Cancer Center, Musculoskeletal Surg.…S1508
Surgical outcomes of pelvic chondrosarcoma with a focus on activities of daily living (ADL)
Hiroshi Koike, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1508
Multi-disciplinary approach for borderline resectable or unresectablede-differentiated liposarcomas
Akiko Sakai, et al., Dept. of Orthop. Surg., Teikyo Univ.…S1509
Postoperative pelvic ring deformity in patients with pelvic malignancy surgery and its effecton functional ability
Masanori Saito, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1509
Surgical treatment of spinal or paraspinal malignant tumor
Naofumi Asano, et al., Dept. of Orthop. Surg., Keio Univ.…S1510

15：50 〜 16：50
Main program 7
Multidisciplinar y treatment for recurrent sarcoma
1-5-MO7-1
1-5-MO7-2

1-5-MO7-3
1-5-MO7-4★

1-5-MO7-5
1-5-MO7-6

Moderators N. Yamamoto, E. Nakata

Moderators H. Futani, S. Tsukushi

The prognostic potential of fusion gene analysis using plasma cell-free RNA in malignant
bone and soft tissue tumors
Naoki Furukawa, et al., Dept. of Orthop., Juntendo Univ.…S1511
Preoperative PET/MRI findings for the planning of additional wide resection of soft tissue
sarcomas: How useful is it?
Michiyuki Hakozaki, et al., Higashi-Shirakawa Orthop. Academy,
Fukushima Medical Univ.…S1511
Therapeutic strategies to obtain higher local control of sacral chordoma
Takao Mochizuki, et al., Jichi Medical Univ. Saitama Medical Center…S1512
BRAF mutations and concurrent alterations in patients with soft tissue sarcoma
Hiroshi Kobayashi, et al., Dept. of Orthop. Surg.,
The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1512
Real world data on secondary treatment for advanced soft tissue sarcoma
Yutaka Nezu, et al., Kanagawa Cancer Center, Musculoskeletal Surg.…S1513
Histological assessment of synovial sarcoma before and after TCR-T cell therapy
Kunihiro Asanuma, et al., Dept. of Orthop. Surg., Mie Univ.…S1513

1st Day July 11 Room 6
8：00 〜 9：05
Free paper 1
Improved surgical resection methods and outcomes
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1-6-FP1-2

Moderators T. Tajino, K. Ikuta

Diagnosis and treatment of soft tissue tumors less than 3 cm
Yasuo Yoshimura, et al., Shinshu Ueda Medical Center…S1514
Treatment for dedifferentiated liposarcoma
Keiko Hayakawa, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1514― 59 ―

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1-6-FP1-4
1-6-FP1-5
1-6-FP1-6

1-6-FP1-7

1-6-FP1-8

Clinical results of preoperative 50.4 Gy radiotherapy combined wide resection for soft
tissue sarcoma
Tomoaki Torigoe, et al., Dept. of Orthop. Oncology and Surg.,
Saitama International Medical Center, Saitama Medical Univ.…S1515
Treatment results of malignant bone and soft tissue tumors arising in the shoulder girdle
Kojiro Yoshikawa, et al., Tokyo Medical Univ. Hosp.…S1515
The utility of the new vessel sealing system in surgery for malignant soft tissue tumors
Yoshitaka Ban, et al., Osaka City Juso Hosp.…S1516
Treatment experience with ceramic spacers for malignant bone tumors in children
Takaya Funada, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1516
Post-operative complications after hip disarticulation for bone and soft tissue tumors:
A retrospective study
Shudai Muramatsu, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1517
Risk factors for functional deterioration after resection of soft-tissue sarcoma of the lower leg
Takuto Itano, et al., Dept. of Orthop. Surg., Science of Functional Recovery andReconstruction, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences,
Okayama Univ.…S1517

9：20 〜 10：35
1-6-FP2-1
1-6-FP2-2

1-6-FP2-3

1-6-FP2-4
1-6-FP2-5

1-6-FP2-6
1-6-FP2-7
1-6-FP2-8
1-6-FP2-9

1-6-FP3-2

Moderators H. Yamada, T. Matsunobu

Function and complications after autologous limb-salvage therapy for sarcoma of bone
Hiromasa Fujii, et al., Dept. of Orthop. Surg., Nara Medical Univ.…S1518
Outcomes of reconstruction using free vascularized fibular graft after resection of sarcoma in
the lower extremity Yu Toda, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1518
Three cases of osteosarcoma that requested treatment from overseas
Tomohiro Aoyama, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1519
Outcomes of tibia turn-up plasty for oncologic management: A series of four cases in a single
tertiary institution
Daniela Carolino, et al., Shizuoka Cancer Center…S1519
Treatment outcome of sarcoma surgery with free-flap
Suguru Fukushima, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1520
Mathematical analysis in golden ratio flap designed using the golden ratio rectangle
Akio Sakamoto, et al., Dept. of Orthop. Surg., Graduate School of Medicine, Kyoto Univ.…S1520
Experience in multidisciplinary collaborative surgery for malignant tumor arising from thechest wall
Masami Hosaka, et al., Dept. of Orthop. Surg., Miyagi Cancer Center…S1521
Our recent experience in treatment of chondrosarcoma arising in the chest wall
Yuichi Ichikawa, et al., Dept. of Orthop. Surg., Tokyo Medical Univ.…S1521
Outcome after resection of chest wall malignancy
Daiki Taruta, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1522

10：50 〜 11：50
1-6-FP3-1★

Free paper 2 Reconstruction method

Free paper 3 Basic research 1

Moderators F. Nakatani, K. Horiuchi

DDIT3-amplified sarcomas without MDM2 amplification: clinicopathological andimmunohistochemical review of 10 cases
Taro Mori, et al., Dept. of Anatomic Pathology, Pathological Sciences,
Graduate School of Medical Sciences, Kyushu Univ.…S1523
Doxorubicin irreversibly impairs skeletal muscle regeneration
Shinya Kondo, et al., Dept. of Orthop. Surg., National Defense Medical College.…S1523― 60 ―

1-6-FP3-3

1-6-FP3-4

1-6-FP3-5
1-6-FP3-6
1-6-FP3-7

Development of a novel osteosarcoma treatment using doxorubichin prodrug
Koki Yoshioka, et al., Dept. of Orthop. Surg.,
Graduate School of Biomedical and Health Sciences, Hiroshima Univ.…S1524
Evaluation of the anti-tumor effect of high hydrostatic pressure using rabbit squamouscell carcinoma
Satoshi Nagatani, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1524
Effect on bone metastasis in renal cell carcinoma with acridine orange and zoledronic acid
Keita Oya, et al., Dept. of Orthop. Surg., Akita Univ. Hosp.…S1525
A study of effectiveness of cryo-chemotherapy for bone metastasis of lung cancer
Toru Udaka, et al., Dept. of Orthop. Surg., Kyorin Univ.…S1525
Development of an optimal method for detecting GNAS gene mutations inintramuscular myxoma
Munehisa Kito, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1526

13：40 〜 14：30
1-6-FP4-1★
1-6-FP4-2
1-6-FP4-3

1-6-FP4-4

1-6-FP4-5
1-6-FP4-6★

1-6-FP5-2

1-6-FP5-3★

1-6-FP5-4
1-6-FP5-5★
1-6-FP5-6

Moderators H. Outani, K. Ogura

Establishment and characterization of organoids from human chondrosarcoma
Toru Wakamatsu, et al., Osaka International Cancer Institute…S1527
Characterization of slow-cycling-cells in Ewing sarcoma
Yuta Nakamatsu, et al., Dept. of Orthop. Surg., Kobe Univ. Graduate School of Medicine…S1527
Roles of SPRR1A in tumorigenesis of osteosarcoma: A study using newly generated artificial
cancer stem cells
Tomohiro Miyamoto, et al., Dept. of Orthop. Surg.,
Kobe Univ. Graduate School of Medicine…S1528
Role of EWSR1/ATF1 fusion gene and exploration of therapeutic targets using geneticallymodified clear cell sarcoma mice
Nobuhiko Hasegawa, et al., Dept. of Orthop., Juntendo Univ.…S1528
Analysis of tumor proliferation through the expression control of GSK-3b and Fbxw7 in
Ewingʼs sarcoma cell lines
Masanori Kawano, et al., Dept. of Orthop. Surg., Oita Univ.…S1529
A novel mechanism of malignant transformation through interaction between PRRX1 and
TOP2A in MPNSTs
Shota Takihira, et al., Dept. of Orthop. Surg.,
Science of Functional Recovery and Reconstruction, Faculty of Medicine,
Dentistry, and Pharmaceutical Sciences, Okayama Univ.…S1529

14：50 〜 15：40
1-6-FP5-1

Free paper 4 Basic research 2

Free paper 5 Cancer locomotive syndrome

Moderators A. Kido, M. Hatori

Outcomes of treatment of soft tissue sarcomas in our sarcoma center
Tsukasa Yonemoto, et al., Dept. of Orthop. Surg., Chiba Cancer Center…S1530
Investigation of novel index as a useful prognostic factor in resectable soft-tissue sarcomas
Seiji Shimomura, et al., Dept. of Orthop.,
Graduate School of Medical Science, Kyoto Prefectural Univ. of Medicine…S1530
Preoperative muscle mass correlates with the prognosis in elderly patients with bone and soft
tissue sarcoma
Yu Toda, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1531
Association of muscle volume with survival in high grade osteosarcoma in extremity
Hironari Tamiya, et al., Osaka International Cancer Institute…S1531
Frailty as a prognostic factor for survival in the elderly patients with spinal metastases
Yutaro Kanda, et al., Dept. of Orthop. Surg., Kobe Univ. Graduate School of Medicine…S1532
Pyogenic spondylitis as cancer locomotive syndrome
Mitsuhiro Hashimoto, et al., Dept. of Orthop. Surg., Chiba Rosai Hosp.…S1532― 61 ―

15：50 〜 16：40
1-6-FP6-1

1-6-FP6-2

1-6-FP6-3
1-6-FP6-4
1-6-FP6-5

1-6-FP6-6

Free paper 6 Diagnosis

Moderators M. Ieguchi, J. Imanishi

Exploring an OpenAI-Based interactive clinical tool with JOA guidelines for soft tissue
tumor management
Masatake Matsuoka, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1533
SUVmax of PET-CT is useful for prognostic stratification of non-responder in osteosarcoma to
preoperative chemotherapy
Toshiyuki Takemori, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1533
Intrapulmonary lymph node in sarcoma patients
Makoto Emori, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1534
Investigation of the usefulness of the hybrid surgical system (Artis Zeego) in CT-guided
needle biopsy
Hirotaka Ogi, et al., Shizuoka City Shizuoka Hosp.…S1534
Diagnostic challenges in low-grade central osteosarcoma: A retrospective study
Hisaki Aiba, et al., Dept. of Orthop. Surg.,
Nagoya City Univ., Graduate School of Medical Sciences…S1535
Factors influencing the benign/malignant diagnosis in biopsies of soft tissue tumor
Naohiro Shinohara, et al., Dept. of Orthop. Surg.,
Graduate School of Medical and Dental Sciences, Kagoshima Univ.…S1535

1st Day July 11 Poster Room 1(402)
15：00 〜 15：45
1-P1-1

1-P1-2

1-P1-3
1-P1-41-P1-5
1-P1-6

1-P1-7
1-P1-8★

1-P1-9Poster 1 Malignant bone tumors: Surgical innovations

Moderator M. Emori

Proximal humeral parosteal osteosarcoma: Shoulder function reconstructed with liquid
nitrogen-treated bone autograft
Ken Inoue, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1536
A case of clear cell chondrosarcoma in femur and scapula
Yusei Katsuyama, et al., Dept. of Orthop.,
Graduate School of Medical Science, Kyoto Prefectural Univ. of Medicine…S1536
A case of internal hemipelvectomy for an older adult
Keisuke Akaike, et al., Dept. of Orthop. Surg., Yamanashi Prefectural Central Hosp.…S1537
Vascularized fibular graft reconstruction following resection of secondary chondrosarcoma of thefirst metatarsal bone
Ikuo Kudawara, et al., Dept. of Orthop. Surg.,
National Hosp. Organization Osaka National Hosp.…S1537
Repetitive surgery of full thickness resection and pedicle flap transfer for recurrent chest wall
MPNST: A case report
Kosuke Takada, et al., Kuwana City Medical Center…S1538
A case of proximal tibial osteosarcoma treated with liquid nitrogen-treated autograft using apatient-specific guide
Yasutaka Murahashi, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1538
A case of suspected femoral shaft bone metastasis in which bone biopsy and internal fixation
using a nail drill
Natsuhiko Takata, et al., Kawaguchi Municipal Medical Center…S1539
Bone formation of bone-prosthesis interface in cases of compress device reconstruction
for osteosarcoma
Hiroshi Koike, et al., Dept. of Orthop./Rheumatology, Musculoskeletal and Cutaneous Surg.,
Program in Integrated Medicine, Graduate School of Medicine, Nagoya Univ.…S1539
A case of clear cell chondrosarcoma of the talus reconstructed with ceramic artificial talus
Yoshikuni Mimata, et al., Dept. of Orthop. Surg., Iwate Medical Univ.…S1540― 62 ―

15：00 〜 15：45
Poster 2
Malignant bone tumors: Rare cases and treatment outcomes
1-P2-1
1-P2-2
1-P2-3

1-P2-41-P2-5
1-P2-6

1-P2-7

1-P2-81-P2-9A case of rare epiphyseal osteosarcoma
Kotaro Watanabe, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1541
A case of malignant triton tumor of the distal femur Yoshitaka Ban, et al., Osaka City Juso Hosp.…S1541
A case of tibia tumor with intraosseous osteofibrous dysplasia-like adamantinoma andextraosseous classical adamantinoma
Shunsuke Yahiro, et al., Dept. of Orthop. Surg., Hyogo Cancer Center…S1542
A case of Ewing sarcoma located in coccyx
Yuki Hirata, et al., Hiroshima Prefectural Hosp.…S1542
A case of osteosarcoma of the proximal ulna
Hitoshi Yamada, et al., Dept. of Orthop. Surg., Jusendo General Hosp.…S1543
Prognostic nutritional index predicts prognosis in patients with primary malignant bone tumors
Tomotaka Yoshida, et al., Musculoskeletal Science,
Yokohama City Univ. Graduate School of Medicine…S1543
Outcomes of malignant bone tumors of the humerus reconstructed with irradiated autograft andfree vascularized fibula
Atsushi Mihara, et al., Dept. of Orthop. Surg., Yamaguchi Univ. Graduate School of Medicine…S1544
Primary high grade sarcoma of the spine: Experience with 11 cases
Ryunosuke Fukushi, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1544
Outcome of ray amputation for malignant tumors of fingers or toes
Haruki Nagai, et al., Chiba Cancer Center…S1545

15：45 〜 16：20
1-P3-1
1-P3-2
1-P3-3
1-P3-4
1-P3-5
1-P3-6
1-P3-7

Moderator M. Hosaka

Poster 3 Case report: Benign bone tumor

Moderator K. Kumagai

An intra-articular approach via the intercondylar fossa for chondroblastoma in the medial condyleof the femur
Masato Fumoto, et al., Dept. of Orthop. Surg., Keio Univ.…S1546
A case of proximal femoral osteoid osteoma in a 2-year-old child
Yusuke Yasutani, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1546
A case of Ollierʼs disease in radius with ulnocarpal abutment syndrome
Risa Takenaka, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1547
Solitary osteochondroma of the proximal phalanx causing trigger finger in an adolescent:A case report
Hirotaka Kurata, et al., Iwaki City Medical Center…S1547
A case of multiple enchondroma of bilateral toe treated with ray amputation
Hideji Nishida, et al., Toyamanishi General Hosp.…S1548
A case of intraosseous lipoma occurring in both talus
Teruki Kidani, et al., Dept. of Orthop. Surg., Ehime Univ. Graduate School of Medicine…S1548
A case of solid ABC in clavicle
Katsushi Suzuki, et al., Orthop. Surg., Miyagi Cancer Center…S1549

1st Day July 11 Poster Room 2 (403)
15：00 〜 15：55
Poster 4
Malignant soft-tissue tumors: Rare cases, diagnosis and surger y
1-P4-1
1-P4-2Moderator H. Nakajima

A case of epithelioid angiosarcoma arising within a schwannoma of the backYuta Watanabe, et al., Dept. of Orthop. Surg., Keio Univ.…S1550
Myxoid liposarcoma originating in the retroperitoneum with metastasis to the calcaneus:
A case report
Kazuhiko Hashimoto, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1550― 63 ―

1-P4-3★

1-P4-41-P4-5
1-P4-6
1-P4-7
1-P4-8
1-P4-9

1-P4-10
1-P4-11

A case of myxoid liposarcoma with unusual eosinophilic cells and DDIT3 gene rearrangement
Yoshiyuki Ayada, et al., Dept. of Pathology and Oncology,
Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama Univ.…S1551
A case report: Pseudoendocrine sarcoma in the back of an elderly patient
Yoshinori Takemura, et al., Dept. of Orthop. Surg., Shiga Univ. of Medical Science…S1551
G-CSF producing dermatofibrosarcoma protuberans
Hiroshi Hasegawa, et al., Dept. of Orthop. Surg., Iwate Medical Univ.…S1552
A case of malignant giant cell tumor of soft tissue that occurred in right thigh
Yuki Hayashida, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1552
A case report of low-grade myofibroblastic sarcoma of the buttock with intramuscular metastasis
in the backRikiya Iwamaru, et al., Dept. of Orthop. Surg., Yamagata Univ.…S1553
Reconstruction of Achilles tendon using semitendinosus tendon graft for malignant tumor
around ankle: A case report
Satoshi Okita, et al., Dept. of Orthop., Shimane Univ.…S1553
Reconstruction of the knee extensor following wide resection for a prepatellar clear cellsarcoma: A case report
Seiya Higuchi, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1554
A review of the imaging features of low-grade fibromyxoid sarcoma diagnosed at our hospital
Shuntaro Wada, et al., Dept. of Orthop. Surg., Iwate Medical Univ.…S1554
The examination that biopsy was benign, and turned into a malignant soft tissue tumor after
the operation
Tetsuo Shimoyama, et al., Dept. of Orthop. Surg., Fujita Health Univ.…S1555

15：00 〜 15：30
1-P5-1
1-P5-2
1-P5-3
1-P5-4
1-P5-5
1-P5-6

Poster 5 Benign soft tissue tumors: Rare cases

A case of solitary periosteal myofibroma of the proximal tibia in an adult
Hanako Tsuji, et al., Dept. of Orthop. Surg., Tokyo Medical Univ.…S1556
A case of soft tissue chondroma with 2 times local recurrence
Taro Nagai, et al., Dept. of Orthop. Surg., Tokyo Medical Univ.…S1556
A soft tissue tumor that required differentiation from knee osteoarthritis: A case report
Naoki Mizoshiri, et al., Matsushita Memorial Hosp.…S1557
Aggressive angiomyxoma treated with preoperative hormone therapy
Tetsuo Shimoyama, et al., Dept. of Orthop. Surg., Fujita Health Univ.…S1557
Treatment of atypical spindle cell/pleomorphic lipomatous tumor
Akira Yoshiyama, et al., Dept. of Orthop. Surg., Tokyo Medical Center…S1558
Osteoclastic giant rich tumor with HMGA2-NCOR2 fusion in the endocarp of ankle joint:
A case report
Akira Shiga, et al., Kanagawa Cancer Center, Musculoskeletal Surg.…S1558

15：55 〜 16：25
Poster 6
Benign soft tissue tumors: Diagnosis and treatment
1-P6-1
1-P6-2

1-P6-3

1-P6-4
1-P6-5Moderator H. Kimura

Moderator H. Nagasawa

Surgical resection of rhabdomyoma of brachial plexus with nerve function preservation
Yuki Aibara, et al., Dept. of Orthop. Surg., Tokyo Dental College Ichikawa General Hosp.…S1559
Atypical spindle cell/Pleomorphic lipomatous tumor masquerading as a myxoid tumor
Jiro Ichikawa, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Science, Univ. of Yamanashi…S1559
A case series of pediatric nodular fasciitis requiring differential diagnosis from malignant soft
tissue tumors
Yuta Taniguchi, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1560
Magnetic resonance imaging findings of tenosynovial giant cell tumor of the finger
Yoshikuni Mimata, et al., Dept. of Orthop. Surg., Iwate Medical Univ.…S1560
Clinical and surgical treatment for myopericytoma
Yoji Shido, et al., Dept. of Orthop. Surg., Hamamatsu Univ. School of Medicine…S1561― 64 ―

1-P6-6

Postoperative outcome of surgery for synovial hemangioma in the knee joint
Ryota Yamauchi, et al., Dept. of Orthop. Surg., Hirosaki Univ. Graduate School of Medicine…S1561

15：30 〜 16：20
Poster 7
Malignant soft tissue tumors: Treatment and outcomes
1-P7-1
1-P7-2
1-P7-3★

1-P7-4

1-P7-5
1-P7-6
1-P7-7
1-P7-8

1-P7-9
1-P7-10Moderator H. Koyanagi

A case of palmar malignant rhabdoid tumor in remission after multidisciplinary treatment
Yuya Eri, et al., Dept. of Orthop. Surg., Keio Univ.…S1562
A case of myxofibrosarcoma of the lower extremity in an elderly patient treatedby thermorediotherapy
Katsuhiro Esaki, et al., Dept. of Orthop. Surg. Kyushu Rosai Hosp.…S1562
Pembrolizumabʼs efficacy in treating liver metastases of MSI-stable/TMB-high pleomorphic
liposarcoma: A case report
Satoshi Miwa, et al., Dept. of Orthop. Surg., The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1563
First case report of the efficacy of pazopanib in a patient with malignant phosphaturic
mesenchymal tumor
Shintaro Yokoyama, et al., Dept. of Orthop. Surg.,
The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1563
A case of TMB-high chest wall Leiomyosarcoma showing reduction of lung metastasiswith pembrolizumab
Hiroto Kamoda, et al., Dept. of Orthop. Surg., Chiba Cancer Center…S1564
Leiomyosarcoma was decreased by combination of pertuzumab and trastuzumab: A case report
Hironori Date, et al., Japanese Red Cross Ise Hosp.…S1564
Treatment with eribulin for soft tissue sarcoma in our hospital
Hirokazu Ideta, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1565
Surgical resection of soft tissue metastasis in malignant soft tissue tumor: Case series
Yuya Izubuchi, et al., Dept. of Orthop. and Rehabilitation Medicine,
Faculty of Medical Sciences, Univ. of Fukui…S1565
Pulmonary cryptococcosis mimicking a metastasis in a patient with myxoid liposarcoma
Mariko Kawamura, et al., Dept. of Orthop. Surg., Hokkaido Univ. Hosp.…S1566
Preoperative full blood count in relation to soft tissue sarcoma prognosis
Masanori Tsugita, et al., Dept. of Orthop. Surg., Div. of Disease Control,
Research field of Medical Sciences, Graduate School of Medicine, Gifu Univ.…S1566

2nd Day July 12 Room 1
8：30 〜 10：40
Symposium 5
Moderators T. Ozaki, S. Takahashi
The evolving JCOG bone and soft-tissue tumor group: reviewing the past 20 years and looking
ahead to the next 20 years
2-1-SY5-1

2-1-SY5-2

2-1-SY5-3

Randomized phase II/III study comparing perioperative adriamycin plus ifosfamide
and gemcitabine plus docetaxel for high-grade soft tissue sarcomas: Japan Clinical Oncology
Group study JCOG1306
Kazuhiro Tanaka, et al., Dept. of Advanced Medical Sciences
Oita Univ. Faculty of Medicine…S1567
A phase III study comparing methotrexate, adriamycin and cisplatin (MAP) with MAP +Ifosfamide (MAP + IF) for the treatment of osteosarcoma: JCOG0905
Hiroaki Hiraga, et al., NHO Hokkaido Cancer Center…S1567
A randomized phase II trial of 2ND-line treatment for advanced soft tissue Sarcoma comparing
Trabectedin, Eribulin and Pazopanib: Japan Clinical Oncology Group study:
JCOG1802 (2ND-STEP)
Makoto Endo, et al., Dept. of Orthop. Surg.,
Clinical Medicine, Graduate School of Medical Sciences, Kyushu Univ.…S1568― 65 ―

2-1-SY5-4

2-1-SY5-5

2-1-SY5-6
2-1-SY5-7

Towards optimizing surgery and chemotherapy in the treatment of soft tissue sarcomas:
An introduction of JCOG 2102
Yuki Funauchi, et al., Dept. of Orthop. and Spinal Surg.,
Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental Univ.…S1568
Is an international collaborative trial necessary?: From our experience with the
JCOG international collaborative trials
Shintaro Iwata, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1569
Development of novel biomarker for the musculoskeletal tumor through new
generation sequence
Fumihiko Nakatani, National Cancer Center Hosp. East…S1569
The future of rare cancer clinical trials: perspective from biostatistician of Bone and Soft
Tissue Tumor Study Group of the Japan Clinical Oncology Group
Ryunosuke Machida, JCOG Data Center…S1570

10：50 〜 11：50
2-1-IL3-1

Moderator N. Araki

Special lecture 2

Moderator T. Ueda

Invited lecture 4

Moderator Y. Yazawa

Results of osteosarcoma treatment in KCCH
Wonseok Song, et al., Korea Cancer Center Hosp., Dept. of Orthop. Surg., Seoul, South Korea…S1573

17：30 〜 18：30
2-1-EL7-1

Cultural lecture

Personalized cancer immunotherapy based on individual genome information
Kazuma Kiyotani, et al., Laboratory of Immunogenomics, National Institute of
Biomedical Innovation, Health and Nutrition…S1572

16：00 〜 17：00
2-1-IL4-1

Moderator N. Kawahara

The glorious history and people of Fukui: Focusing on Emperor Kaitai and Sanai Hashimoto
Naokadu Tsunoga, Fukui Prefectural Univ., Kehi Shrine Chief Priest…S1572

14：40 〜 15：40
2-1-SL2-1

Luncheon seminar 6

Relationship between cancer treatment and orthopedic surgery: The new fieldof onco-orthopaedics
Hideo Morioka, Dept. of Orthop. Surg.,
National Hosp. Organization Tokyo Medical Center/Keio Univ.…S1571

13：30 〜 14：30
2-1-CL-1

Moderator T. Akiyama

Surgery of the pelvis: Lessons and reflections on pelvic tumour surgery:
Experiences of a lifetime
Peter F.M. Choong, Univ. of Melbourne, Dept. of Surg., Melbourne, Australia…S1571

12：20 〜 13：20
2-1-LS6-1

Invited lecture 3

Educational lecture 7

Moderator K. Tsuchiya

Medical insurance system of bone and soft tissue tumor treatment: Present status
and perspectives
Takeshi Morii, et al., Dept. of Orthop. Surg., Kyorin Univ.…S1573

2nd Day July 12 Room 2
8：30 〜 9：30
2-2-EL8-1

Educational lecture 8

Moderator T. Akisue

Vascular tumor and malformations occurring in the limbs and soft tissues of bones
Michio Ozeki, Gifu Univ. Hosp.…S1574― 66 ―

9：40 〜 10：40
2-2-IL5-1

Moderator J. Toguchida

Luncheon seminar 7

Moderator H. Kawashima

Key points of clinical care for patients with neurofibromatosis type 1 byorthopaedic oncologists
Yoshihiro Nishida, Dept. of Rehabilitation, Nagoya Univ. Hosp.…S1575

13：30 〜 14：30
2-2-IL6-1

Educational lecture 9

To the young orthopaedic surgeons living in the 21st century: The future of bone andsoft tissue tumors reflects Japan
Akira Kawai, Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1575

12：20 〜 13：20
2-2-LS7-1

Moderator K. Kaneko

Long term results of resections and reconstruction for bone tumors in children
and adolescents
Eric Mascard, et al., Univ. Hosp. Necker, Paris / Institut Gustave Roussy,
Villejuif Cedex, France…S1574

10：50 〜 11：50
2-2-EL9-1

Invited lecture 5

Invited lecture 6

Moderator T. Hiranaka

Review of yearly experience in Mandaly Orthopaedic Hospital (Myanmar) including tumor likelesions and experience of Rotationplasty in lower limb
Aung Naing, Dept. of Orthop., Univ. of Medicine Magway, Magway, Myanmar…S1576

14：40 〜 16：40
Panel discussion 3
Moderators H. Kawano, M. Endo
Current status and issues in bone and soft-tissue tumor treatment
from a multidisciplinar y perspective
2-2-PD3-1
2-2-PD3-2

2-2-PD3-3
2-2-PD3-4

2-2-PD3-5
2-2-PD3-6

2-2-PD3-7

Nursing care for patients with sarcoma from the palliative care teamSerina Hani, et al., Dept. of Nursing, Univ. of Fukui Hosp.…S1577
Current situations and issues of bone and soft tissue tumor therapy frompharmacistʼs perspective
Yukiko Nakagawa, Dept. of Hosp. Pharmacy, Univ. of Kanazawa Hosp.…S1577
Rehabilitation and occupational therapy in sarcoma treatment
Miki Fujii, Dept. of Rehab., Osaka International Cancer Institute…S1578
The role of total nutrition management and therapy by nutrition support team (NST) as
prevention and treatment for malnutrition through highly advanced cancer therapy
Mio Matsuoka, et al., Dept. of Nutrition, Osaka International Cancer Institute…S1578
Intervention in bone and soft tissue tumor cases based on consultation: Liaison psychiatry
and psychology
Hiroshi Koubou, The Cancer Institute Hosp. of JFCR…S1579
Outpatient clinic for hereditary bone and soft tissue tumors for patients at high risk ofdeveloping sarcoma
Mashu Futagawa, et al., Clinical Genetics and Genomic Medicine, Okayama Univ. Hosp.…S1579
Current situation of regional cooperation in the treatment of bone and soft tissue tumors
Yasue Kawaguchi, Univ. of Fukui Hosp.…S1580

16：50 〜 18：30
Symposium 6
Moderators S. Matsumoto, K. Hiraoka
Current status and challenges of sarcoma treatment in children and AYA generation
2-2-SY6-1

Cancer predisposition and long-term complications of bone and soft tissue sarcomas inchildren, adolescents and young adults
Hidemi Toyoda, Dept. of Pediatrics, Mie Univ. Graduate School of Medicine…S1581― 67 ―

2-2-SY6-2

2-2-SY6-3
2-2-SY6-4

2-2-SY6-5
2-2-SY6-6

Inter-institutional collaboration for the treatment of pediatric and AYA patients with bone andsoft tissue sarcomas
Kunihiro Ikuta, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1581
Monitoring fertility after treatment for high-grade sarcoma in adolescent and young
male patients
Manabu Hoshi, et al., Dept. of Orthop. Surg., Osaka City General Hosp.…S1582
An approach to fertility preservation in adolescent and young adult soft tissue
sarcoma patients
Tomohito Hagi, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1582
Radiotherapy for pediatric sarcomas: Current situation and challenges
Yusuke Demizu, Kobe Proton Center…S1583
Psychosocial support for child, adolescent and young adult patients
Miwa Sasaki, Nagoya Univ. Hosp.…S1583

2nd Day July 12 Room 3
7：25 〜 8：25
2-3-MS1-1

Morning seminar 1

Moderator H. Hiraga

Ablation for the treatment of bone and soft tissue tumors
Koichiro Yamakado, Dept. of Radiology, Hyogo Medical Univ.…S1584

8：30 〜 10：10
Symposium 7
Tumor prosthesis: Infection prevention and control of infection
2-3-SY7-1

2-3-SY7-2
2-3-SY7-3

2-3-SY7-4

2-3-SY7-5
2-3-SY7-6
2-3-SY7-7

Moderators T. Morii, K. Hayashi

Prevention and treatment of peri-operative infection in tumor endoprosthesis: Perspectives
based on the survey of management principle on bone and tumor surgeons
Takeshi Morii, et al., Dept. of Orthop. Surg., Kyorin Univ.…S1585
Can JOA guideline for prevention of surgical site infection be recommended for megaprosthesis surgery?
Ikuo Fujita, et al., Dept. of Orthop. Surg., Hyogo Cancer Center…S1585
The risk factors of periprosthetic infection after tumor prosthesis of lower leg in patients withmusculoskeletal tumor
Toshifumi Fujiwara, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kyushu Univ.…S1586
Should we remove surgical suction drains within 48 hours after the surgery ofmusculoskeletal malignant tumor?
Tomoaki Torioge, et al., Dept. of Orthop. Oncology and Surg.,
Saitama International Medical Center, Saitama Medical Univ.…S1586
Possibility of iodine-coated implants
Toshiharu Shirai, et al., Dept. of Orthop.,
Graduate School of Medical Science, Kyoto Prefectural Univ. of Medicine…S1587
Review of infection cases in oncological prosthesis and device
Keiko Hayakawa, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1587
Analysis of infection control rates using continuous local antibiotics perfusion in PJI after bonetumor surgery
Tomotaka Yoshida, et al., Musculoskeletal Science,
Yokohama City Univ. Graduate School of Medicine…S1588

10：20 〜 11：50
Symposium 8
Moderators T. Takagi, H. Sugiura
Cancer locomotive syndrome: What really matters to improve the quality of life of patients
2-3-SY8-1

Rehabilitation and cancer locomotive syndrome for cancer patients
Hideshi Sugiura, et al., Dept. of Integrated Health Sciences,
Nagoya Univ. Graduate School of Medicine…S1589― 68 ―

2-3-SY8-2
2-3-SY8-3
2-3-SY8-4
2-3-SY8-5

2-3-SY8-6
2-3-SY8-7

Factors associated with the preoperative two-step score with senior digestive cancer
Masahiro Yoshida, et al., Aichi Cancer Center…S1589
Preventing cancer locomotive syndrome in cancer patients undergoing cancer drug therapy
Noriatsu Tatematsu, et al., Nagoya Univ. Graduate School of Medicine…S1590
Exercise for cancer patients during treatment and cancer survivors
Tabu Gokita, et al., Dept. of Orthop. Surg., Saitama Cancer Center…S1590
The role of orthopaedic surgeons in tumor board
Tomoki Nakamura, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1591
The key factor in treating bone metastasis is early detection
Yusuke Shinoda, Dept. of Rehabilitation Medicine, Saitama Medical Univ.…S1591
Basic onco-orthopaedic skills to general orthopaedic surgeons to provide standardized
locomotive care for cancer patients
Sayaka Yamaguchi, et al., Dept. of Orthop. Surg., Keio Univ. …S1592

12：20 〜 13：20
2-3-LS8-1

Educational lecture 10

Moderator T. Yonemoto

The role of total nutrition management as metabolic support through cancer therapy
Shohei Iijima, Dept. of Nutrition Oncology, Osaka International Cancer Institute…S1593

15：00 〜 16：00
2-3-AS3-1

Moderator T. Morii

How to prevent SSIs in musculoskeletal tumor surgeries
Koji Yamada, Dept. of Orthop. Surg., Nakanoshima…S1593

13：30 〜 14：30
2-3-EL10-1

Luncheon seminar 8

Afternoon seminar 3

Moderator T. Ozaki

Treatment strategies for advanced stage malignant soft tissue tumors
Robert Nakayama, Dept. of Orthop. Surg., Keio Univ.…S1594

2nd Day July 12 Room 4
7：25 〜 8：25
2-4-MS2-1

Morning seminar 2

Moderator H. Sugiura

Recent topics in the diagnosis and treatment of benign bone tumors
Eisuke Kobayashi, Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1594

8：30 〜 9：30
Main program 8
Management of metastatic bone tumors
2-4-MO8-1

2-4-MO8-2
2-4-MO8-3
2-4-MO8-4

Moderators R. Nakayama, S. Takenaka

Roles of orthopaedic surgeon in the treatment of metastatic bone tumors at aregional hospital
Takeo Fujito, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1595
Effectiveness of liaison treatment for metastatic bone tumors and problems in its operation
Katsuhito Yoshioka, et al., NHO Kanazawa Medical Center…S1595
Efficacy of multidisciplinary approach for breast cancer patients with bone metastasis
Toru Hirozane, et al., Dept. of Orthop. Surg., Kyorin Univ.…S1596
Treatment algorithms for metastatic bone tumors
Kazuhiko Hashimoto, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1596― 69 ―

2-4-MO8-5

2-4-MO8-6

Significance of early diagnosis and primary lesion department consultation for metastaticbone tumor of unknown primary
Taketsugu Fujibuchi, et al., Dept. of Orthop. Surg.,
Ehime Univ. Graduate School of Medicine…S1597
Should contrast medium be used in whole-body CT for skeletal metastasis of unknown
primary origin?
Toshio Kojima, et al., Dept. of Orthop. Surg., Nihon Univ.…S1597

9：40 〜 10：40
Main program 9
Treatment of metastatic bone tumors
2-4-MO9-1

2-4-MO9-2

2-4-MO9-3
2-4-MO9-4
2-4-MO9-5

2-4-MO9-6★

Moderators I. Baba, E. Kobayashi

Outcome of cervical orthosis for metastatic bone tumors
Suguru Fukushima, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1598
Prognosis of lung cancer patients with spinal metastases treated with surgical procedures
Ukei Anazawa, et al., Dept. of Orthop. Surg.,
Tokyo Dental College Ichikawa General Hosp.…S1598
Surgical delay in for impending/pathological femoral fractures due to bone metastasis
Ion Kimura, et al., Dept. of Orthop. Surg., Teikyo Univ…S1599
Investigation after discontinuation of long-term denosumab treatment for bone metastasis
Hitomi Hara, et al., Dept. of Orthop. Surg., Kobe Univ. Graduate School of Medicine…S1599
Prognostic tendency of bone metastasis from breast cancer over the last decade
Yasuo Yazawa, et al., Dept. of Orthop. Oncology and Surg.,
Saitama International Medical Center, Saitama Medical Univ.…S1600
Clinical outcome of bone metastasis from soft tissue sarcomas
Tomohito Hagi, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1600

10：50 〜 11：50
Main program 10
Basic research on sarcoma
2-4-MO10-1
2-4-MO10-2
2-4-MO10-3

2-4-MO10-4★
2-4-MO10-5

2-4-MO10-6

Systematic analysis of the publications on the basic research of osteosarcoma
Keisuke Horiuchi, et al., Dept. of Orthop. Surg., National Defense Medical College…S1601
Effect of surfactant on osteosarcoma cell line 143B cells
Yuka Muramatsu, et al., Dept. of Physic. Ther., Shinshu Univ.…S1601
Pannexin3 and Connexin43 for osteosarcoma
Teruya Uchiyama, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1602
Redox regulatory mechanisms in tumor progression of epithelioid sarcoma
Hideyuki Kinoshita, et al., Dept. of Orthop. Surg., Chiba Cancer Center…S1602
Association with endoplasmic reticulum stress response in sarcomas of bone and soft tissue
Yoshiyuki Suehara, et al., Div. of Cellular Signaling,
National Cancer Center Research Institute…S1603
Spatial transcriptome analysis of bone and soft tissue tumors
Yoshiyuki Suehara, et al., Div. of Cellular Signaling,
National Cancer Center Research Institute…S1603

12：20 〜 13：20
2-4-LS9-1

Moderators K. Horiuchi, A. Myoui

Luncheon seminar 9

Moderator H. Kawano

Understanding tumor endoprosthesis at lower extremity
Tomoki Nakamura, Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1604― 70 ―

13：30 〜 14：35
Free paper 7
Rehabilitation, functions and quality of life
2-4-FP7-1

2-4-FP7-2
2-4-FP7-3

2-4-FP7-4
2-4-FP7-5

2-4-FP7-6

2-4-FP7-7

2-4-FP7-8

Moderators M. Hoshi, H. Kobayashi

Present conditions for fertility preservation in Yamaguchi prefecture
Ryuta Iwanaga, et al., Dept. of Orthop. Surg.,
Yamaguchi Univ. Graduate School of Medicine…S1605
Effect of chemotherapy of malignant bone and soft tissue tumors on bone density
Chiomi Shirai, et al., Dept. of Orthop. Surg., Yamagata Univ.…S1605
Long-term BMD in patients with osteosarcoma: AI-assisted diagnostic system for osteoporosis
using the X-ray image
Koichi Okajima, et al., Dept. of Orthop. Surg.,
The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1606
Outcomes and challenges of fracture prevention in cancer-associated osteoporosis clinic
Yuya Tokumoto, et al., Dept. of Orthop. Surg., Saitama Cancer Center…S1606
Functional outcome after wide resection of the soft tissue sarcoma around the knee joint
Hiroshi Koike, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ…S1607
Prognostic impact of prehospital delay to specialized sarcoma center in osteosarcoma patients:
Takanao Kurozumi, et al., Dept. of Orthop. Surg.,
Suggestion of 4-week rule
Science of Functional Recovery and Reconstruction, Faculty of Medicine,
Dentistry, and Pharmaceutical Sciences, Okayama Univ.…S1607
The prognostic significance of surgical treatment for excessive elderly soft tissue sarcoma
patients over 90 years old
Hiroyuki Tsuchie, et al., Dept. of Orthop. Surg., Akita Univ. Graduate School of Medicine…S1608
Analysis of risk factors for distant metastasis in high-grade soft tissue sarcoma inelderly patients
Shinichirou Yoshida, et al., Dept. of Orthop. Surg.,
Tohoku Univ. Graduate School of Medicine…S1608

14：50 〜 15：50
Main program 11
New treatment techniques
2-4-MO11-1

2-4-MO11-2

2-4-MO11-3

2-4-MO11-4
2-4-MO11-5
2-4-MO11-6

Moderators U. Anazawa, A. Nagano

Blue LED light induces antitumor effects on bone and soft tissue sarcoma cells without
damaging normal cells
Shinji Kawaguchi, et al., Dept. of Orthop., Tokushima Univ. Hosp.…S1609
Usefulness of pasteurized bone and vascularized periosteal grafts for malignant
bone tumors
Taisuke Furuta, et al., Dept. of Orthop. Surg.,
Graduate School of Biomedical and Health Sciences, Hiroshima Univ.…S1609
Prognostic factors for soft tissue sarcoma of the limbs and trunk and application of negative
pressure wound therapy
Shusa Ohshika, et al., Dept. of Orthop. Surg.,
Hirosaki Univ. Graduate School of Medicine…S1610
A study of effective cases of hyperthermia for orthopaedic malignant tumors in our hospital
Shun Yuki, et al., Chiba Cancer Center…S1610
A study of four cases of total hip arthroplasty after periacetabular resection withpreoperative 3D planning
Rie Suzuki, et al., Osaka International Cancer Institute…S1611
Application of intraoperative MRI to bone and soft tissue tumor surgery at our hospital
Akihiro Oda, et al., Dept. of Orthop. Surg.,
Graduate School of Biomedical and Health Sciences, Hiroshima Univ.…S1611― 71 ―

16：30 〜 17：50
Main program 12Moderators M. Hakozaki, S. Iwata
How to deal with refractor y benign tumors such as neurofibromatosis
2-4-MO12-1
2-4-MO12-2

2-4-MO12-3

2-4-MO12-4

2-4-MO12-5

2-4-MO12-6
2-4-MO12-7
2-4-MO12-8

Pathogenesis of recurrent solitary bone cyst
Manabu Hoshi, et al., Dept. of Orthop. Surg., Osaka City General Hosp.…S1612
To improve ADL/QOL of patients with intractable benign bone and soft tissue tumors:
Adequate intervention for problems
Yoshihiro Nishida, et al., Dept. of Rehabilitation, Nagoya Univ. Hosp.…S1612
Recommendations regarding the prescription of selumetinib that will transform thetreatment of neurofibromatosis type 1
Yoshihiro Nishida, et al., Dept. of Rehabilitation, Nagoya Univ. Hosp.…S1613
Analysis of patient care in a university hospital for neurofibromatosis type 1, 2
Akira Ogose, et al., Uonuma Institute of Community Medicine,
Niigata Univ. Medical and Dental Hosp. …S1613
Outpatient clinic for hereditary bone and soft tissue tumors for patients
Eiji Nakata, et al., Dept. of Orthop. Surg., Science of Functional Recovery andReconstruction, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences,
Okayama Univ.…S1614
Clinical outcome of MPNST with NF1Junji Wasa, et al., Shizuoka Cancer Center…S1614
Demographics of primary spinal cord and cauda equina tumors
Osahiko Tsuji, et al., Dept. of Orthop. Surg., Keio Univ.…S1615
Invasion patterns and long-term clinical outcomes of diffuse type tenosynovial giant celltumor in the ankle
Kumiko Yotsuya, et al., Dept. of Orthop. Surg., Hamamatsu Univ. School of Medicine…S1615

2nd Day July 12 Room 5
9：30 〜 10：45
2-5-FP8-1

2-5-FP8-2

2-5-FP8-3

2-5-FP8-4
2-5-FP8-5

2-5-FP8-6★

2-5-FP8-7

Free paper 8 Epidemiology

Moderators H. Murata, M. Watanuki

Clinical features and outcomes of primary bone and soft tissue sarcomas in adolescents andyoung adults
Kazuhiko Hashimoto, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1616
Statistics of musculoskeletal sarcoma over the last decade in a single institution
Yasuo Yazawa, et al., Dept. of Orthop. Oncology and Surg.,
Saitama International Medical Center, Saitama Medical Univ.…S1616
Clinical characteristics of ultra-rare sarcoma: A study using the US SEER database
Ryuichi Fukuda, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1617
Statistics of primary spinal benign/intermediate tumors in Japan
Ryuto Tsuchiya, et al., Funabashi Municipal Medical Center…S1617
Sarcoma and chromosomal translocations: Descriptive epidemiology in the bone and soft
tissue tumor registry in Japan
Kengo Kawaguchi, et al., Dept. of Orthop. Surg.,
Clinical Medicine, Graduate School of Medical Sciences, Kyushu Univ.…S1618
Descriptive epidemiology of bone sarcoma in Japan: Statistics from the national cancer
registry in Japan
Koichi Ogura, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1618
Osteosarcoma in children 9 years of age or younger: A study using data from the nationalbone tumor registry in Japan Kensaku Yamaga, et al., Dept. of Orthop. Surg., Tottori Univ.…S1619― 72 ―

2-5-FP8-8

2-5-FP8-9

T ime-to-treatment initiation analysis in patients with non-small round cell sarcomas
at extremities
Sakurako Takahashi, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1619
Statistics of visceral sarcoma in Japan: Report from the population-based national cancer
registry in Japan
Shudai Muramatsu, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1620

10：50 〜 11：50
Free paper 9
Infection and perioperative complications
2-5-FP9-1

2-5-FP9-2

2-5-FP9-3

2-5-FP9-4
2-5-FP9-5
2-5-FP9-6

2-5-FP9-7

Efficacy of plasma D-dimer screening for preoperative thrombosis in bone and soft tissue
tumor patients Hiroya Kondo, et al., Dept. of Musculoskeletal Oncology and Rehabilitation,
National Cancer Center Hosp.…S1621
GNRI as a predictor for surgical site infection malignant musculoskeletal tumours of the trunk
Sakura Shiraishi, et al., Dept. of Orthop. Surg., Clinical Medicine,
Graduate School of Medical Sciences, Kyushu Univ.…S1621
Risk factors associated with postoperative infection of wide resection for soft tissue sarcomas
occurring around hips
Junya Shimizu, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1622
The risk factors for surgical site infection of malignant soft tissue tumor of the thighShunsuke Yahiro, et al., Dept. of Orthop. Surg., Hyogo Cancer Center…S1622
Wound infection of bone and soft tissue tumor surgery around pelvis and proximal thighKan Ito, et al., Dept. of Orthop. Surg., Shizuoka Cancer Center…S1623
Deep infection after mega-prosthesis reconstruction for bone and soft tissue sarcomas
Haruyoshi Katayama, et al., Dept. of Orthop. Surg., Science of Functional Recovery andReconstruction, Faculty of Medicine, Dentistry, and Pharmaceutical Sciences,
Okayama Univ.…S1623
T ips on infection prevention for mega-prostheses
Takaaki Tanaka, et al., Dept. of Orthop. and Rehabilitation Medicine,
Faculty of Medical Sciences, Univ. of Fukui…S1624

12：20 〜 13：20
2-5-LS10-1

Moderators S. Sugihara, M. Susa

Luncheon seminar 10

Moderator A. Kawai

Diagnosis and treatment of FGF23-related hypophosphatemic rickets/ osteomalacia:
Current topics and future tasks
Hiroshi Kobayashi, Dept. of Orthop. Surg., The Univ. of Tokyo Hosp., The Univ. of Tokyo…S1625

13：30 〜 14：20
Free paper 10
Chemotherapy for malignant bone tumors
2-5-FP10-1

2-5-FP10-2

2-5-FP10-3

Moderators S. Ohshika, T. Nishisho

Investigation of the optimal regimen of adjuvant chemotherapy for elderly patients withhigh-grade bone sarcomas
Akihito Nagano, et al., Dept. of Orthop. Surg., Div. of Disease Control,
Research field of Medical Sciences, Graduate School of Medicine, Gifu Univ.…S1626
The relationship between radiological change and pathological effect and prognosis after
chemotherapy in osteosarcoma
Shinichirou Yoshida, et al., Dept. of Orthop. Surg.,
Tohoku Univ. Graduate School of Medicine…S1626
Adverse events in methotrexate / levofolinate relief therapy
Masanobu Takeyama, et al., Musculoskeletal Science,
Yokohama City Univ. Graduate School of Medicine…S1627― 73 ―

2-5-FP10-4★

2-5-FP10-5

2-5-FP10-6

A novel predictive scoring system of immune checkpoint inhibitors for non-small-cell lungcancer with bone metastases
Yohei Asano, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1627
Prognostic factors related to changes in nutritional status and wound complications due toneoadjuvant chemotherapy
Jun Iwatsu, et al., Dept. of Orthop. Surg., Tohoku Univ. Graduate School of Medicine…S1628
Survey and treatment of chemotherapy-induced peripheral neuropathy
Akihiro Daisaku, et al., Dept. of Orthop. Surg., Kurume Univ.…S1628

14：30 〜 15：20
Free paper 11
Chemotherapy for soft-tissue sarcoma
2-5-FP11-1

2-5-FP11-2
2-5-FP11-3
2-5-FP11-4
2-5-FP11-5
2-5-FP11-6

Effects of preoperative chemotherapy in patients with inflammatory soft tissue sarcoma
Reina Kaneko, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1629
Effect of perioperative chemotherapy in patients with localized myxoid liposarcoma
Tomoya Masunaga, et al., Dept. of Orthop. Surg., Nara Medical Univ.…S1629
Dosage and clinical course of doxorubicin and ifosfamide chemotherapy for bone and soft
tissue sarcoma
Shunsuke Hamada, et al., Dept. of Orthop. Surg., Aichi Cancer Center…S1630
Long-term survival after distant metastases in synovial sarcoma patients
Kaoru Aoki, et al., Dept of Physical Therapy, Shinshu Univ.…S1630
T wo cases of contrastive course of Ewing-like sarcoma
Hiroaki Shibata, et al., Dept. of Orthop. Surg., Asahikawa Medical Univ.…S1631
A case of advanced dedifferentiated liposarcoma under control using ADR therapy
with dexrazoxane Shunichi Toki, et al., Dept. of Orthop., Institute of Biomedical Sciences,
Tokushima Univ. Graduate School…S1631

15：30 〜 16：35
2-5-FP12-1

2-5-FP12-2

2-5-FP12-3
2-5-FP12-4

2-5-FP12-5
2-5-FP12-6
2-5-FP12-7
2-5-FP12-8

Moderators H. Urakawa, T. Yanagawa

Free paper 12 Metastatic bone tumors 1

Moderators J. Manabe, T. Kawamoto

Practice of treatment for bone metastasis by residents at a regional hospital
Kunihiro Ikuta, et al., Dept. of Orthop./Rheumatology,
Musculoskeletal and Cutaneous Surg., Program in Integrated Medicine,
Graduate School of Medicine, Nagoya Univ.…S1632
The effects of the bone metastasis board and bone modifying agent usage status in
our hospital
Shinichirou Yoshida, et al., Dept. of Orthop. Surg.,
Tohoku Univ. Graduate School of Medicine…S1632
Image-based record screening may suppress skeletal-related events in patients withbone metastases
Nokitaka Setsu, et al., Dept. of Orthop. Surg., Kyushu Cancer Center…S1633
Treatment results for metastatic bone tumors in the late elderly patients treated with surgery
Itsuo Watanabe, et al., Dept. of Orthop. Surg.,
Tokyo Dental College Ichikawa General Hosp.…S1633
The role of orthopaedic surgeons based on treatment results for bone metastasis from small
cell lung cancer
Yuya Sato, et al., Dept. of Orthop. Surg., Kasukabe Medical Center…S1634
The trial of bone metastasis cancer board in the local hospital
Akira Takazawa, et al., Shinshu Ueda Medical Center…S1634
Surgical intervention for pathological femur fractures improves life outcomesToshiyuki Nishimoto, et al., Hokkaido Cancer Center…S1635
Clinical outcome of radiofrequency ablation for metastatic bone tumors
Nobuhiko Yokoyama, et al., Dept. of Orthop. Surg., National Kyushu Cancer Center…S1635― 74 ―

16：45 〜 17：45
2-5-FP13-1
2-5-FP13-2

2-5-FP13-3
2-5-FP13-4
2-5-FP13-5
2-5-FP13-6
2-5-FP13-7

Free paper 13 Metastatic bone tumors 2

Moderators K. Yamada, S. SatoIntermediate unstable spinal metastases with paralytic progression after radiotherapy
Atsushi Tanaka, et al., Dept. of Orthop. Surg., Shinshu Univ.…S1636
The necessity of estimation for restoring ambulation and complications of surgery formetastatic spinal tumors
Akira Iwata, et al., Dept. of Musculoskeletal Oncology, Hokkaido Cancer Center…S1636
Prognostic factors in patients with cancers revealed by bone metastasis
Jun Iwatsu, et al., Dept. of Orthop. Surg., Tohoku Univ. Graduate School of Medicine…S1637
Evaluation of primary unknown bone metastasis cases in initial consultation at theorthopaedic surgery department
Makoto Yamaguchi, et al., Nagoya City Univ. Hosp.…S1637
Clinical characteristics and prognostic factors of bone metastasis in gastric cancer patients
Yasuhiro Nakamura, et al., Dept. of Orthop., Juntendo Univ.…S1638
Reoperation after surgery for bone metastasis of renal cell carcinoma
Shinji Tsukamoto, et al., Dept. of Orthop. Surg., Nara Medical Univ.…S1638
A clinical study for bone metastases with duplicate cancer
Tadaaki Koyama, et al., Dept. of Orthop. Surg., Shizuoka Cancer Center…S1639

2nd Day July 12 Room 6
13：30 〜 14：45
2-6-FP14-1
2-6-FP14-2

2-6-FP14-3
2-6-FP14-4
2-6-FP14-5

2-6-FP14-6

2-6-FP14-7
2-6-FP14-8
2-6-FP14-9

Moderators M. Koizumi, K. Kikuta

Experience in the treatment of radiation-induced sarcoma
Tsukasa Mizuno, et al., Dept. of Orthop. Surg., National Defense Medical College…S1640
Comparison of preoperative and postoperative radiotherapy in patients with localized
myxoid liposarcoma
Tomoya Masunaga, et al., Dept. of Orthop. Surg., Nara Medical Univ.…S1640
Marginal resection following neoadjuvant radiotherapy for intermuscular myxoid liposarcoma
Akira Nomura, et al., Dept. of Orthop. Surg., Surgical Science, Tokai Univ.…S1641
Proton beam radiotherapy for unresectable bone and soft tissue sarcoma
Yosuke Honda, et al., Hamamatsu Red Cross Hosp.…S1641
An analysis of the risk factors for local failure of sacral chordoma treated withcarbon-ion radiotherapy
Takashi Yanagawa, et al., Gunma Prefectural Cancer Center,
Dept. of Musculoskeletal Oncology…S1642
A retrospective analysis of carbon-ion radiotherapy for unresectable chondrosarcoma
Yuhei Miyasaka, et al., Dep. of Radiation Oncology,
Gunma Univ. Graduate School of Medicine…S1642
Clinical results of carbon-ion radiotherapy for unresectable bone and soft tissue sarcomas
Akira Matsunobu, et al., SAGA HIMAT…S1643
Particle therapy in patients with Ewing sarcoma family of tumors of the trunk
Yoichi Kaneuchi, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1643
Selective perioperative radiation therapy for soft tissue sarcoma patients
Toshihiko Nishisho, et al., Dept. of Orthop.,
Institute of Biomedical Sciences, Tokushima Univ. Graduate School…S1644

15：10 〜 16：10
2-6-ST1-1

Free paper 14 Radiation therapy

Short Talk 1 Treatment

Moderators Y. Tanzawa, H. Hatano

T wo cases of early postoperative loosening and revision after joint replacement for distal
femoral bone tumor
Ryo Satake, et al., Shizuoka Cancer Center…S1645― 75 ―

2-6-ST1-2
2-6-ST1-3

2-6-ST1-4★

2-6-ST1-5★

2-6-ST1-6
2-6-ST1-7
2-6-ST1-8
2-6-ST1-9
2-6-ST1-10
2-6-ST1-11
2-6-ST1-12

Experience in treating mesh-free tumor arthroplasty
Tomohiko Ito, et al., Dept. of Orthop. Surg., Kindai Univ. Faculty of Medicine…S1645
Guided growth using an Eight-Plate for correction of leg-length discrepancy associated withbone and soft tissue tumors
Kumiko Yotsuya, et al., Dept. of Orthop. Surg., Hamamatsu Univ. School of Medicine…S1646
Surgical treatment for sciatic notch dumbbell-shaped adipocytic tumors
Shunichi Toki, et al., Dept. of Orthop., Institute of Biomedical Sciences,
Tokushima Univ. Graduate School…S1646
Intraoperative extracorporeal autogenous irradiated tendon grafts for soft tissue sarcomas.
Report of three cases
Naoya Terao, et al., Div. of Orthop. Surg., Dept. of Regenerative andTransplant Medicine, Niigata Univ. Graduate School of Medical and Dental Sciences…S1647
Treatment for fibrous dysplasia using corrective osteotomy: Three cases report
Tetsuya Hamada, et al., Dept. of Orthop. Surg., Kurume Univ.…S1647
Three cases of solitary distal tibial osteochondroma with compression and deformity to
the fibula
Koki Shimizu, et al., Dept. of Orthop. Surg., Nagoya Memorial Hosp.…S1648
Resection for osteochondroma of the forearm limiting forearm rotation in two case reports
Takashi Noguchi, et al., Dept. of Orthop. Surg., Graduate School of Medicine, Kyoto Univ.…S1648
Clinical outcomes of dermatofibrosarcoma protuberans
Ryo Katsuki, et al., Orthop. Surg., Graduate School of Medicine, Univ. of the Ryukyus…S1649
My small experiences of surgery for bone metastases
Masato Tomita, et al., Dept. of Orthop. Surg., Nagasaki Harbor Medical Center…S1649
Clinical experience of six cases in malignant granular cell tumor
Taisuke Tanizawa, et al., Dept. of Orthop. Surg., Cancer Institute Hosp. of JFCR…S1650
Treatment and prognosis for tumors of the foot and ankle
Jeung Il Kim, et al., Dept. of Orthop. Surg.,
Pusan National Univ. Hosp., Pusan National Univ. School of Medicine, Busan, Korea…S1650

16：20 〜 17：10
Short Talk 2
Diagnosis, complications and others
2-6-ST2-1

2-6-ST2-2

2-6-ST2-3
2-6-ST2-4
2-6-ST2-5

2-6-ST2-6
2-6-ST2-7

Moderators T. Yasuda, S. Kakunaga

Detecting malignant transformation of chondrosarcoma secondary to multiple
osteochondromatosis using FDG-PET/MRI
Takeo Suzuki, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1651
Aggressive vertebral hemangioma with destructive bone lesions requiring differentiationfrom malignancy: 2 case reports
Kanjiro Oka, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1651
T wo cases of self-ruptured chronic expanding hematoma mimicking soft tissue sarcoma
Tatsuya Ito, et al., Dept. of Orthop. Surg., Hyogo Cancer Center…S1652
Three cases of phosphoglyceride crystal deposition disease with initially suspectedbone tumor
Takuto Kumagai, et al., Dokkyo Medical Univ. Hosp.…S1652
Three cases of adult-onset Langerhans cell histiocytosis: Clinical features andliterature review
Ryuji Nemoto, et al., Dept. of Orthop. Surg., National Defense Medical College…S1653
Intractable pain developed after chemotherapy suspected of involving cytomegalovirus
Hitoshi Yamada, et al., Dept. of Orthop. Surg., Jusendo General Hosp.…S1653
Osteoporotic vertebral fractures due to high-dose steroid use: An analysis of three cancer
patient cases
Yuya Tokumoto, et al., Dept. of Orthop. Surg., Saitama Cancer Center…S1654― 76 ―

2-6-ST2-8

2-6-ST2-9
2-6-ST2-10

Three cases of osteosarcoma with delayed methotrexate excretion in the third space after
high-dose methotrexate therapy
Shuhei Tokoyoda, et al., Dept. of Orthop. Surg., Graduate School of Medicine, Chiba Univ.…S1654
T wo cases of implant failure after intramedullary nail fixation for pathological fractures offemoral metastases Itaru Ogawa, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1655
Clinical practice in Miyako island for the patients in orthopaedic oncology
Yumi Matsuyama, et al., Dept. of Musculoskeletal Surg.,
Dept. of Multimodality Therapy for Cancer, Mie Univ. Graduate School of Medicine…S1655

17：20 〜 18：10
Free paper 15
Benign bone and soft-tissue tumor
2-6-FP15-1

2-6-FP15-2

2-6-FP15-3
2-6-FP15-4
2-6-FP15-5

2-6-FP15-6

Moderators Y. Shido, Y. Tome

The efficacy of anhydrous ethanol adjuvant therapy on aneurysmal bone cysts
Fumiko Koibuchi, et al., Dept. of Orthop. Surg.,
Tohoku Univ. Graduate School of Medicine…S1656
Clinical presentation of fibrous dysplasia of the proximal femur without deformity andtreatment strategies for pain
Masato Yoshimoto, et al., Dept. of Orthop. Surg., Kyushu Rosai Hosp.…S1656
Recurrence factors for osteoid osteoma after CT-guided curettage andelectrocautery ablation
Satoshi Kamio, et al., Dept. of Orthop. Surg., Keio Univ.…S1657
Ten cases of subungual exostosis of the toes
Eiji Kozawa, et al., Dept. of Orthop. Surg., Nagoya Memorial Hosp.…S1657
Predictive factors for intraoperative and postoperative bleeding in chronic
expansive hematoma
Keisuke Hoshiko, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kyushu Univ.…S1658
Clinical course of patients diagnosed with nodular fasciitis
Hiroshi Urakawa, et al., Dept. of Advanced Medicine, Nagoya Univ. Hosp.…S1658

2nd Day July 12 Poster Room 1 (402)
15：00 〜 15：50
2-P8-1
2-P8-2

2-P8-32-P8-42-P8-52-P8-6
2-P8-72-P8-8Poster 8 Tumor-like lesions: Diagnosis and treatment

Moderator E. Kozawa

A case report of soft-tissue tumor in the anterior mediastinum
Yoshihiro Araki, et al., Dept. of Orthop. Surg., Hirose Hosp.…S1659
Differential diagnosis of pediatric pyogenic osteomyelitis from bone tumors andtumor-like lesions
Takashi Ariizumi, et al., Div. of Orthop. Surg., Dept. of Regenerative andTransplant Medicine, Niigata Univ. Graduate School of Medical and Dental Sciences…S1659
Characteristic and clinical outcome in patients with chronic expanding hematoma of thesoft tissue
Kenta Nakata, et al., Dept. of Orthop. Surg., Mie Univ.…S1660
Metal allergy to megaprosthesis detected by PET/CT: A case report
Yoichi Kaneuchi, et al., Dept. of Orthop. Surg., Fukushima Medical Univ.…S1660
4 cases of osteomyelitis that required differential diagnosis from bone tumors
Yusuke Sato, et al., Dept. of Orthop. Surg., Nihon Univ.…S1661
Periprosthetic infection following proximal femur replacement treated with cotinuous local
antibiotics perfusion (CLAP)
Kunihiko Numoto, et al., Kochi Health Sciences Hosp.…S1661
A case of proximal femoral lymphorrhea around a tumor-type hip arthroplasty treated using
pedal lymphangiography
Toshio Kojima, et al., Dept. of Orthop. Surg., Nihon Univ.…S1662
A case of femoral shaft aneurysmal bone cyst applicated treatment of chronic
expanding hematoma
Kenji Kumagai, et al., Dept. of Orthop. Surg.,
Nagasaki Univ. Graduate School of Biomedical Sciences…S1662― 77 ―

2-P8-9★
2-P8-10Comparison of malignancy incidence during osteoporosis treatment: Denosumab vs.
bisphosphonates
Takaomi Kobayashi, et al., Dept. of Orthop., Taku City Hosp.…S1663
Surgery for proximal femoral fractures in elderly patients receiving cancer treatment
Shuichiro Suzuki, et al., Matsumoto Medical Center…S1663

15：00 〜 15：45
2-P9-1

2-P9-22-P9-32-P9-42-P9-52-P9-6
2-P9-72-P9-82-P9-9Poster 9 Tumor-like lesions

A case of lateral meniscus cyst of the knee diagnosed with common peroneal nerve palsy
Mako Okumura, et al., Dept. of Orthop. Surg.,
Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ.…S1664
A case of hyperparathyroidism-jaw tumor syndrome and a fibrous dysplasia of the rib
Chigusa Sawamura, et al., Saitama Cancer Center …S1664
Costal osteomyelitis as a side reaction of Bacillus Calmette-Guerin vaccination: A case report
Shohei Murata, et al., Dept. of Orthop. Surg., Akita Univ. Graduate School of Medicine…S1665
A case of amyloidoma of the lower leg presented the characteristic change on MR images after
the open biopsy
Keitaro Umehara, et al., JCHO Tokuyama Central Hosp.…S1665
Symphysis pubis osteomyelitis after robotics assisted laparoscopic prostatectomy
Shusui Hatta, et al., Dept. of Orthop. Surg., Chiba Cancer Center…S1666
A case of femoral streptococcal infection that required differentiation from soft tissue tumor
Yuya Tokumoto, et al., Dept. of Orthop. Surg., Saitama Cancer Center…S1666
Xanthogranulomatous osteomyelitis of femur mimicking malignant bone tumor
Hiroshi Hatakeyama, et al., Dept. of Orthop. Surg., Tohoku Univ. Hosp.…S1667
A case of digital subungual mucous cyst invading distal phalanx
Hiroyuki Takeuchi, et al., Hanwa Memorial Hosp. …S1667
A case of Gorhamʼs disease diagnosed following a pathological femoral neck fracture
Daigo Shiraishi, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1668

15：45 〜 16：20
Poster 10“Intermediate” categor y of lesions: Rare cases and treatment
2-P10-1
2-P10-2
2-P10-3
2-P10-4
2-P10-5★
2-P10-6

2-P10-7

Moderator A. Sakamoto

Moderator Y. Kitagawa

A case of giant cell tumor of bone in the navicular bone of the footRintaro Niki, et al., Dept. of Orthop. Surg., St. Marianna Univ. School of Medicine…S1669
A case of giant cell tumor in the metacarpal boneNatsuki Maruyama, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1669
A case report of atypical lipomatous tumor indicating multicentric development
Genji Suemitsu, et al., Dept. of Orthop. Surg., Kagawa Univ.…S1670
Kaposiform hemangioendothelioma diagnosed following elbow contracture: A case report
Yoko Tanabe, et al., Dept. of Orthop. Surg., Keio Univ.…S1670
Differences in MRI findings of superficial spindle cell lipoma and atypical lipomatous tumor
Masaya Kawaguchi, et al., Dept. of Radiol., Gifu Univ.…S1671
Differential diagnosis of lipomatous tumor based on the combination of clinical features and
MRI findings
Yuya Izubuchi, et al., Dept. of Orthop. and Rehabilitation Medicine,
Faculty of Medical Sciences, Univ. of Fukui…S1671
A case of angiomatoid fibrous histiocytoma of the thigh with difficult diagnosis
Seiichi Sugimura, et al., Dept. of Orthop. Surg., Tohoku Univ. Graduate School of Medicine…S1672― 78 ―

2nd Day July 12 Poster Room 2(403)
15：00 〜 15：45
2-P11-1
2-P11-2★
2-P11-3
2-P11-4
2-P11-5
2-P11-6
2-P11-7
2-P11-8

2-P11-9

2-P12-2★

2-P12-3
2-P12-4

2-P12-5★

Poster 12 Basic research

Moderator T. Fujiwara

Study of sarcoma cases with PHF20-NTRK1 fusion gene
Yuta Kubota, et al., Dept. of Orthop. Surg., Oita Univ.…S1678
Deciphering gene rearrangement in non-translocation related sarcoma: Clinical insights frompublic NGS data analysis
Kengo Kawaguchi, et al., Dept. of Orthop. Surg., Clinical Medicine,
Graduate School of Medical Sciences, Kyushu Univ.…S1678
Clinical significance of sIL-2 receptor levels in the initial diagnosis of musculoskeletal tumor
Takashi Tajima, et al., Dept. of Orthop. Surg., Kyorin Univ.…S1679
Uptake of CLG, fluorescent L-glucose derivative in the doxorubicin resistant humanosteosarcoma cell line
Takahiro Tanabu, et al., Dept. of Orthop. Surg., Hirosaki Univ. Graduate School of Medicine…S1679
Establishment and characterization of a novel myxofibrosarcoma cell line
Naoya Nakahashi, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1680

15：45 〜 16：15
Poster 13
Metastatic bone tumors: diagnosis and treatment
2-P13-1
2-P13-2
2-P13-3
2-P13-4

Moderator T. Tanizawa

Association between ADC values and clinical outcome in bone and soft tissue tumor treated withcarbon ion radiotherapy
Masato Sugawara, et al., Dept. of Orthop. Surg., Yamagata Univ.…S1673
Qualitative effectiveness determination after spinal SBRT by DWIBSMasateru Fujiwara, et al., Dept. of Radiotherapy, Suita Tokushukai Hosp.…S1673
T wo cases of preoperative proton beam therapy for myxoid liposarcoma
Shuichi Fujiwara, et al., Dept. of Orthop. Surg., Kobe Univ. Graduate School of Medicine…S1674
A case of benign metastasizing leiomyoma treated palliatively with stereotactic bodyradiotherapy using CyberKnife
Shinichiro Mizumatsu, et al., Aoyama General Hosp.…S1674
A case of dedifferentiated liposarcoma treated with fiducial-tracking stereotactic bodyradiotherapy of CyberKnife
Koji Iwata, et al., Dept. of Radiology, Fukui Saiseikai Hosp.…S1675
Factors associated with walking ability after limb-sparing surgery for femoral soft-tissue tumors
Toru Nishikawa, et al., Rehabilitation Units, Kyoto Univ. Hosp.…S1675
A preliminary study of the effect of step exercise on gait parameters after resection of femoral
soft tissue sarcoma
Yasuko Fujita, et al., Rehabilitation Units, Kyoto Univ. Hosp.…S1676
Preoperative systemic nutrition status and tumor glucose metabolism in patients with soft
tissue sarcoma
Hiromichi Oshiro, et al., Orthop. Surg., Graduate School of Medicine, Univ. of the Ryukyus…S1676
The impact of novel coronavirus disease-19 on musculoskeletal tumor treatment in our
department: The second report
Takahiro Tajino, Minami Tohoku Fukushima Hosp.…S1677

15：00 〜 15：25
2-P12-1★

Poster 11 Radiotherapy and QOL

Moderator T. Okamoto

A rare case of femur metastasis from brain meningioma
Yuki Mitani, et al., Hiroshima Prefectural Hosp.…S1681
A case of phyllodes tumor metastatic to the right humerus bone
Mizuki Aketo, et al., Dept. of Orthop. Surg., Sapporo Medical Univ.…S1681
Characteristics of metastatic bone tumors of the extremities diagnosed after
pathological fractures
Keiichi Akahori, et al., Dept. of Orthop. Surg., Tottori Univ.…S1682
A case of anterior minimally invasive plate osteosynthesis (anterior MIPO) for humeral
shaft metastasis
Takuma Nagaoka, et al., Dept. of Orthop. Surg., Nihon Univ.…S1682― 79 ―

2-P13-5
2-P13-6

Rehabilitation for prosthetic reconstruction after pathological fracture of femur: A case report
Rena Sato, et al., Dept. of Rehabilitation, Mie Univ. Hosp.…S1683
Internal fixation with curettage and calcium phosphate cement augmentation for pathologicalproximal femur fracture
Hiroyuki Araki, et al., Ibaraki Prefectural Central Hosp.…S1683

15：30 〜 16：00
Poster 14
Metastatic bone tumors: outcomes, risks and prognosis
2-P14-1

2-P14-2★
2-P14-3
2-P14-4★

2-P14-5
2-P14-6

Moderator K. Sato

Oncological outcomes of skeletal metastases of unknown primary origin at initial presentation to
our department
Tatsunobu Kobayashi, et al., Dept. of Orthop. and Rehabilitation Medicine,
Faculty of Medical Sciences, Univ. of Fukui…S1684
Incidence of atypical femoral fractures in patients with bone metastases receiving
denosumab therapy
Hirokazu Tanaka, et al., Dept. of Orthop., Juntendo Univ.…S1684
Surgical results of metastatic bone tumor
Hironori Date, et al., Japanese Red Cross Ise Hosp.…S1685
Synergistic effects of immune checkpoint inhibitors and denosumab in bone metastases oflung cancer
Yohei Asano, et al., Dept. of Orthop. Surg.,
Graduate School of Medical Sciences, Kanazawa Univ.…S1685
Prognosis and surgical selection for metastatic bone tumors of the lower extremity
Daiichiro Takahara, et al., Dept. of Orthop. Surg., Yamagata Univ.…S1686
Risk assessment of femoral pathological fracture using finite element method
Tatsuro Saruga, et al., Dept. of Orthop. Surg., Hirosaki Univ. Graduate School of Medicine…S1686― 80 ―