Day 1

Day 1
Room 1

ProgramJune 28（Fri）

Day1・Room 1（Conference Bldg. 2F“Main Hall”）
Quick Review

Systematic review committee Fracture OTAKU:
Quick review of the papers in 2023
Chairs: I. Ohno

（7:00 ～ 8:00）

Y. Watanabe
1-1-QR-1 ～ 4 …………………………………………………………………………………………………… S33
Nagoya Univ. Graduate School of Medicine, Aichi, Japan  Yoichi Sato

1-1-QR-1AI

1-1-QR-2

Periprosthetic fracture
Dept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Shuya Takahashi

1-1-QR-3

Distal tibial fracture

The Jikei Univ. Kashiwa Hosp., Chiba, Japan  Naoya Inagaki

1-1-QR-4

Pediatric forearm fracture
Higashi Kawaguchi Hosp., Saitama, Japan  Tomoo Nakagawa

Symposium 1

Updates on treatment of pelvic ring and acetabular fractures（8:30 ～ 10:00）

Chairs: T. Noda
T. Suzuki

1-1-SY1-1

Initial management for unstable pelvic injury(including percutaneous screw fixation)… ………………………………………………… S41
Teikyo Univ. Hosp., Tokyo, Japan  Takashi Suzuki

1-1-SY1-2

Operative treatment for fragile fracture of the pelvis can maintain walking
ability better than conservative treatment………………………………………………… S42
Okayama Medical Center, Okayama, Japan  Naofumi Shiota

1-1-SY1-3

Advances in Diagnosis and Approach of Acetabular Fractures… …………………… S43
Saitama Medical Center, Saitama, Japan  Yasuhisa Ueda

1-1-SY1-4

Open Reduction and Internal Fixation of the Geriatric Acetabular Fracture………… S44
Aichi Medical Univ., School of Medicine, Aichi, Japan  Masahiro Yoshida

1-1-SY1-5

Total hip arthroplasty for elderly acetabular fracture patients………………………… S45
Dept. of Traumatology and Reconstructive Surg., Fukushima Medical Univ., /…
Trauma and Reconstructive Surg. Center, Aidu Chuo Hosp., Fukushima, Japan /…
Saiseikai Niigata Kenou Kikan Hosp., Niigata Japan  Masayuki Ito－ 135 －

1-1-SY1-6

Treatment update of Pelvic/Acetabular fractures-perioperative complications-………………………………………………………………… S46
Kawasaki Medical School General Medical Center, Okayama, Japan  Tomoyuki Noda

Panel Discussion 1

Guidelines for the Treatment of Bone Metastases（10:30 ～ 11:50）

Chairs: H. Kawano
Y. Watanabe

1-1-PD1-1

Significance of the Cancer Board in the treatment of bone metastasis… ……………… S63
National Hosp. Organization Tokyo Medical Center, Tokyo, Japan  Hideo Morioka

1-1-PD1-2

Spinal Metastasis Treatment and Imaging Evaluation in Spinal Metastasis… ……… S64
Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hosp., …
Tokyo, Japan  Shurei Sugita

1-1-PD1-3

Rehabilitation for patients with bone metastasis and surgery for othermusculoskeletal diseases……………………………………………………………………… S65
Saitama Medical Univ., Saitama, Japan  Yusuke Shinoda

1-1-PD1-4

Role of predictive scoring for survival of bone metastasis……………………………… S66
Fukushima Medical Univ., Fukushima, Japan  Yoshihiro Matsumoto

1-1-PD1-5

Pros and cons of prosthetic reconstruction for long-bone metastasesin the extremities……………………………………………………………………………… S67
National Cancer Center Hosp., Tokyo, Japan  Shintaro Iwata

History of the Japanese Society for Fracture Repair-Messages from the presidents of our society to the next generation（13:10 ～ 14:20）

Chairs: H. Inoue
T. Noda1-1-SE-1

The Early Stage of The JSFR… …………………………………………………………… S3
Suto Orthop. Clinic, Kanagawa, Japan  Moritoshi Itoman

1-1-SE-2

Message from past presidents… …………………………………………………………… S4
Shin-yurigaoka General Hosp., Kanagawa, Japan  Takashi Matsushita

1-1-SE-3

Third chairman (2011-2014)… ……………………………………………………………… S5
Fukushima Medical Univ., Fukushima, Japan / …
Shinyurigaoka General Hosp., Kanagawa, Japan  Takeshi Sawaguchi

1-1-SE-4

The Golden period of Japanese Society for Fracture Repair…………………………… S6
Kawasaki Hosp., Fukuoka, Japan  Masahiro Shirahama

1-1-SE-5

Toward the internationalization of JSFR… ……………………………………………… S7
NHO Okayama Medical Center, Okayama, Japan  Toru Sato

－ 136 －

1-1-SE-6

Dept. of Orthop. Surg., Teikyo Univ. School of Medicine / Trauma & Reconstruction Center, …
Teikyo Univ. Hosp., Tokyo, Japan  Yoshinobu Watanabe

1-1-SE-7

Future perspective -from JSFR to JOTA-… ……………………………………………… S9Kawasaki Medical School General Medical Center, Okayama, Japan  Tomoyuki Noda

Sponsored SymposiumTreatment of fragility fractures-From the acute stage to Geriatric Care -（14:30 ～ 16:00）

Chairs: Y. Watanabe
N. Shiota

1-1-SSY-1

Vertebral Fragility Fracture -Treatment Practice and Diagnostic Significance…………………………………………………………………………………………………… S58
Osaka Saiseikai Nakatsu Hosp., Osaka, Japan  Masatoshi Hoshino

1-1-SSY-2

Proximal humeral fractures… ……………………………………………………………… S59
Sendai Tokushukai Hosp., Miyagi, Japan  Hisayoshi Inoue

1-1-SSY-3

Examination of the intervention rate for osteoporosis treatment and recurrence
factors for secondary fractures in patients with distal radius fractures… …………… S60
Maeda Orthop. and Surg. Clinic, Kagawa, Japan / …
Okayama Saiseikai General Hosp., Okayama, Japan  Kazushige Maeda

1-1-SSY-4

Hip fractures are the result of a losing battle in fragility fractures
How to fight from here… …………………………………………………………………… S61
Kitakyushu General Hosp., Fukuoka, Japan  Fumio Fukuda

1-1-SSY-5

Current treatment of fragile fractures of the pelvic at a regional center
hospital… ……………………………………………………………………………………… S62
Japanese Red Cross Asahikawa Hosp., Hokkaido, Japan  Masahito Tanaka

Cultural Lecture（16:10 ～ 17:10）
1-1-CL

Chair: T. Aizawa

Lateral Thinking for Discovery of Truths in Clinical Research of the
Musculoskeletal System……………………………………………………………………… S17
NHO Sendai Nishitaga Hosp., Miyagi, Japan  Shoichi Kokubun－ 137 －

Day 1
Room 1

Practice Evidence Based Health Care (EBHC) and increase the presence oforthopaedic trauma surgeons!… …………………………………………………………… S8

Day1・Room 2（Conference Bldg. 2F“Tachibana”）
Oral 1

Proximal humeral fractures（8:30 ～ 9:20）
1-2-O1-1

Chair:  Y. Kusabiraki

Treatment strategies for proximal humeral fractures in the elderly age,using the allogenic bone graft for comminuted proximal humeral fractures… …… S178
Rakusai Shimizu Hosp., Kyoto, Japan  Kunimoto Fukunishi

1-2-O1-2

Treatment strategy for proximal humeral fractures in elderly using
DePuySynthes MultiLoc PHN ～ Best solution ～……………………………………… S178
Higashisumiyoshi Morimoto Hosp., Osaka, Japan  Hidetoshi Teraura

1-2-O1-3

Surgical fixation with smooth pegs locking plate for proximal humerus
fractures……………………………………………………………………………………… S179
Dept. of Orthop. Surg., Tokai Univ. School of Medicine, Kanagawa, Japan  Takeshi Imai

1-2-O1-4

Arthroscopic Capsular release for post-proximal humeral fracture………………… S179
North Sendai Orthop. Clinic, Miyagi, Japan  Shinjiro Miura

1-2-O1-5

Clinical evaluation of hemiarthroplasty for proximal humeral fractures…………… S180
Kita-Harima Medical Center, Hyogo, Japan  Shogo Kurokawa

1-2-O1-6

Internal fixation with clavicular locking plate for acromial fracture after
reverse shoulder arthroplasty: A report of five cases………………………………… S180
Joint Surg., Sports Clinic Ishinomaki, Miyagi, Japan  Ryosuke Mashiko

Main Theme 2

ORIF for proximal humeral fractures（9:30 ～ 10:40）
1-2-MT2-1

Chair: C. Terada

Life prognosis of proximal humerus fracture surgery cases at our hospital… ……… S92
Saiseikai Otaru Hosp. / Sapporo Medical Univ. Hosp., Hokkaido, Japan  Tomohiro Izawa

1-2-MT2-2

Comparative assessment of fracture risk and bone mineral density in patientswith proximal humerus fractures…………………………………………………………… S93
Dept. of Orthop. Surg., Yokohama Municipal Citizen's Hosp. / Yokohama Ekisaikai Hosp. / …
Yokohama City Univ., Kanagawa, Japan  Hiroshi Fujimaki

1-2-MT2-3

The transacromial approach for proximal humerus fracture pseudarthrosis………… S93
Minami Nara General Medical Center, Nara, Japan  Takamitsu Mondori

1-2-MT2-4

Arthroscopically assisted intramedullary nailing for proximal humeral fracture……… S94
Dept. of Orthop., Tane General Hosp., Osaka, Japan  Hirokazu Nagai

1-2-MT2-5

Endosteal strut using a HA/PLLA mesh tube for the treatment of adult proximal
humeral fractures……………………………………………………………………………… S94
The Aichi Prefectural Federation of Agricultural Cooperative for …
Health and Welfare Kainan Hosp., Aichi, Japan  Hidetoshi Iwata－ 138 －

1-2-MT2-6

Evaluation of proximal insertion point of straight antegrade nailing for proximaland diaphyseal humeral fractures…………………………………………………………… S95
Ibaraki Prefectural Central Hosp., Ibaraki, Japan  Hiroyuki Araki

1-2-MT2-7

Using intramedullary nails for proximal humeral fractures via anterosuperior
approach………………………………………………………………………………………… S95

Main Theme 4

Elbow fractures and dislocation（10:50 ～ 11:40）
1-2-MT4-1

Chair: J. Imatani

Treatment of elbow fracture-dislocations with anteromedial facet fracture ofcoronoid process… …………………………………………………………………………… S99
Okayama Saiseikai General Hosp., Okayama, Japan  Shinji Narazaki

1-2-MT4-2

Treatment for dislocation of the elbow in children… ………………………………… S100
Anjo Kousei Hosp., Aichi, Japan  Makoto Suzuki

1-2-MT4-3

Clinical results of olecranon fracture‒dislocation… …………………………………… S100
Dept. of Orthop. Surg., Suzuka General Hosp., Mie, Japan  Naoki Kokubu

1-2-MT4-4

A new posterior approach to adult Monteggia fractures and Transolecranon
fracture dislocation… ……………………………………………………………………… S101
Shinyurigaoka General Hosp., Kanagawa, Japan  Hiroshi Takamure

1-2-MT4-5

A treatment experience for comminuted olecranon fracture dislocations using
Intraosseous Wiring as adjunctive fixation… ………………………………………… S101
Dept. of Orthop. Surg., Showa Univ. School of Medicine, Tokyo, Japan  Sadaaki Tsutsui

Noontime Lecture 1（12:00 ～ 13:00）
1-2-NL1

Chair: M. Yorimitsu

A Novel Option for Geriatric Ankle Fractures -Fibular Nail………………………… S505
Dept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Kentaro Matsui

Main Theme 24

Proximal femoral fractures in the elderly -Clinical outcomes-（14:30 ～ 15:40）

Chair: A. Sakurai

1-2-MT24-1 Effects on gluteus medius of posterolateral fragment fixation of femoral
trochanteric fractures……………………………………………………………………… S157
Kure Kyosai Hosp., Hiroshima, Japan  Teruhiko Ando

1-2-MT24-2 Reconsidering the indications of CHS type implants for femoral trochantericfractures……………………………………………………………………………………… S158Southern TOHOKU General Hosp. Trauma and Reconstruction Center, Fukushima, Japan / …
Kyoto Prefectural Univ. of Medicine, Kyoto, Japan  Naoyuki Horie

1-2-MT24-3 Do impacted valgus femoral neck fractures need reduction?………………………… S158
Hokusetsu General Hosp., Osaka，Japan  Choman Ryu－ 139 －

Day 1
Room 2

Dept. of Orthop. Surg., Hikifune Hosp., Tokyo, Japan  Koji Seike1-2-MT24-4 A study of responses to fracture risk factors in patients with bilateral hip
fractures……………………………………………………………………………………… S159
Haga Red Cross Hosp., Tochigi, Japan  Mitsuharu Nakashima

1-2-MT24-5 Prognostic factors for femoral neck fractures in the retrotorsion and valgus
positions……………………………………………………………………………………… S159
North Alps Medical Center Azumi Hosp., Nagano, Japan  Shintaro Ito

1-2-MT24-6 Usefulness of early total hip arthroplasty for displaced femoral neck fractures… …… S160
Koshinkai Shiomidai Hosp., Kanagawa, Japan  Kurato Jonishi

1-2-MT24-7 Is CLAP (Continuous Local Antibiotic Perfusion) therapy effective for infection
after hip fracture surgery?………………………………………………………………… S160
Nagoya Ekisaikai Hosp., Aichi, Japan  Kazuki Uchibori

Main Theme 26

Proximal femoral fractures in the elderly -Mortarity rate

（15:50 ～ 17:00）

Chair: S. Obara

1-2-MT26-1 Post operative course and mortality of hip fracture patients aged 100 and over…… S163
Konan Medical Center, Hyogo, Japan  Yu Sasaki

1-2-MT26-2 Fracture Dominoes in the elderly -A multiplication of weight and nutrition reveals
that weight and nutrition are associated with vertebral and proximal femur
fractures……………………………………………………………………………………… S163
Nokami Kosei General Hosp., Wakayama, Japan  Takuji Matsumoto

1-2-MT26-3 Low serum albumin may concern with the post operative prognosis in theproximal femur fracture patients………………………………………………………… S164
Saiseikai Niigata Kenoh Kikan Hosp., Niigata, Japan  Daisuke Sugita

1-2-MT26-4 Preoperative BNP in patients with proximal femoral fractures is associatedwith the risk of postoperative heart failure… …………………………………………… S164
Kishiwada Tokushukai Hosp., Osaka, Japan  Wataru Shirasaka

1-2-MT26-5 Orthogeriatric co-management in collaboration with general medicine can allow
early and safe surgery for hip fracture with severe AS……………………………… S165
Akashi Medical Center, Hyogo, Japan  Takahiro Waki

1-2-MT26-6 10-year survival rate of patients after femoral transverse fracture surgery…………… S165
Tachibana Hosp., Miyazaki, Japan  Yugo Kashiwagi

1-2-MT26-7 Mortality and functional outcomes of geriatric hip fracture one year after
the injury… ………………………………………………………………………………… S166
Sanda City Hosp., Hyogo, Japan  Takashi Iwakura－ 140 －

Debate 1

Osteosynthesis for trochanteric fractures of the Femur               -Short femoral nail versus sliding hip screw（17:20 ～ 18:20）

Chairs: K. Matsui
T. Inui

Every type of trochanter fractures of the femur should be fixed withintramedullary nail !?
-Do you use short femoral nail even for the A1 type?-… ……………………………… S86
Shin-yurigaoka General Hosp., Kanagawa, Japan  Takashi Matsushita
Kaisei Hosp., Kagawa, Japan  Kiyoto Kinugasa

1-2-D1-2

Is nail fixation reasonable for all femoral trochanteric fractures!?  
Do we use nails for 31A1? Yes we do.……………………………………………………… S87
Juntendo Univ. Shizuoka Hosp., Shizuoka, Japan  Atsuhiko Mogami
Fukuoka Orthop. Hosp., Fukuoka, Japan  Masami Tokunaga－ 141 －

Day 1
Room 2

1-2-D1-1

Day1・Room 3（Conference Bldg. 2F“Hagi”）
Lecture from Korean Fracture Society President（8:30 ～ 9:00）
1-3-KP

Chair: T. Miyamoto

Novel Classification for Periprosthetic Distal Femoral Fractures Based on
Locked-Plate Fixation Following Total Knee Arthroplasty………………………… S493
Dept. of Orthop. Surg., Kyung Hee Univ. Hosp., Gangdong, Seoul, Korea  Kang-II Kim

Problem cases discussions -Presented by Japanese and Korean Young Surgeons（9:10 ～ 10:40）

Chairs: N. Saka
K. Udagawa
J.-K. Oh

1-3-PC-1 ～ 4 ………………………………………………………………………………………………… S502
1-3-PC-1

Dept. of Emergency and Critical Care Medicine, Nara Medical Univ., …
Nara, Japan  Hironobu Konishi

1-3-PC-2

Dept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Ken Kawabata

1-3-PC-3

Graduate School of Medicine, Hanyang Univ., Seoul, Korea  Incheol Kook

1-3-PC-4

ept. of Orthop. Surg., Korea Univ. Guro Hosp., Seoul, Korea  Wonseok Choi

Invited Lecture 1（10:50 ～ 11:50）
1-3-IL1-1

Chair: T. Noda

Pelvic and acetabular fracture surgery through a single incision Stoppa technique-The general surgical perspective-… ……………………………………………………… S10
Trauma Unit, Dept. of Surgery, NorthWest Clinics, …
Alkmaar, The Netherlands  Kees Jan Ponsen

1-3-IL1-2

Open Tibial Shaft Fractures: Treatment Patterns in Latin America… ……………… S11
Orthop. and Traumatology, Royal San José Hosp., Mexico  Luis Padilla Rojas

Noontime Lecture 2（12:00 ～ 13:00）
1-3-NL2

Chair: N. Shiota

Early surgery for femoral neck fractures, SHS long plates andsecondary fracture prevention are unmatched!… ……………………………………… S506
Dept. of Orthop. Surg., Nishinomiya Neurosurgical Hosp., …
Hyogo, Japan  Naohide Takigawa－ 142 －

AO Trauma Seminar（14:30 ～ 15:30）
1-3-AO1-1

Chair: H. Minehara

360°approach around the distal femur…………………………………………………… S486
Dept. of Orthop. Surg., Faculty of Medicine, Chiang Mai Univ., Thailand…

  Theerachai Apivatthakakul
1-3-AO1-2

The creation and cultivation of a digital landscape for the AO:
shokunin, tsubo niwa and the art in research, education and innovationin clinical practice………………………………………………………………………… S487

Invited Lecture 2（15:40 ～ 16:40）
1-3-IL2

Chair: K. Udagawa

The Role of Infectious Disease Doctors in the Management of
Fracture-Related Infections… ……………………………………………………………… S15
Princess Alexandra Hospital, Brisbane  Burcu Isler

Evening Seminar 1（17:20 ～ 18:20）
1-3-EVS1

Chair: T. Ozaki

How far can Megaprosthesis be applied?
-Expansion of indications from pathological fractures to trauma-…………………… S530
Dept. of Musculoskeletal Traumatology, Faculty of Medicine Dentistry and Pharmaceutical …
Sciences, Okayama Univ., Okayama, Japan  Masanori Yorimitsu－ 143 －

Day 1
Room 3

Consultant Orthop. Surg., The Princess Grace Hosp., London, UK  Simon Lambart

Day1・Room 4（Conference Bldg. 2F“Sakura 1”）
Main Theme 5

Fractures of the distal radius and ulna, Clinical results（8:30 ～ 9:30）
1-4-MT5-1

Chair: H. Sakano

Palmar locking plate fixation of intra-articular Smith's fractures: Importance ofdistal ulnar placement… …………………………………………………………………… S102
Kagawa Univ., Kagawa. Japan  Konosuke Yamaguchi

1-4-MT5-2

Clinical outcome of the conservative treatment of Distal Radius Fractureswith the cast immobilization with the wrist dorsiflexed……………………………… S102
Dept. of Orthop., School of Medicine, Jichi Medical Univ., Tochigi, Japan  Jiro Ando

1-4-MT5-3

Investigation of barrier factors for early return to society after distal radius
fracture surgery… ………………………………………………………………………… S103
Dept. of Orthop., Juntendo Univ. Faculty of Medicine, Tokyo, Japan  Kenjiro Kawamura

1-4-MT5-4

Correlation between height of plate setting and acquired palmar tilt……………… S103
Niigata Hand Surgery Foundation, Niigata, Japan  Koji Moriya

1-4-MT5-5

Reconstruction of the volar cortex is effective in reducing the articular surfaceof distal radius fractures…………………………………………………………………… S104
Shonan Kamakura General Hosp., Kanagawa, Japan  Takashi Ogawa

1-4-MT5-6

Comparison of conservative treatment versus plate fixation for distal ulna
fractures associated with distal radius fractures in the elderly……………………… S104
Shin-yurigaoka General Hosp., Kanagawa, Japan  Ryutaro Shibata

Main Theme 6

Distal radius fractures, VLF（9:40 ～ 10:40）
1-4-MT6-1

Chair: K. Morita

Risk management of postoperative displacement of volar-displaced distal
radius fractures: Advantages of using distal volar locking plate… ………………… S105
Dept. of Orthop., Juntendo Univ. Faculty of Medicine / …
Ouji Hosp., Tokyo, Japan  Hiroyuki Obata

1-4-MT6-2

The characteristics of the volar lunate facet fragment in mechanism of
injury of distal radius fractures…………………………………………………………… S105
Tokushima Municipal Hosp., Tokushima, Japan  Ryosuke Sato

1-4-MT6-3

The research of the volar displaced distal radius fractures with radialstyloid fragment… ………………………………………………………………………… S106
Kousei General Hosp., Hiroshima, Japan  Kyohei Chiba

1-4-MT6-4

Treatment for Distal Radius Fractures with Volar Lunate Facet Fragments lessthan 10 mm using Stellar P, D… ………………………………………………………… S106
Saiseikai Shiga Hosp., Shiga, Japan  Kaname Ohashi

1-4-MT6-5

Evaluation of plate placement and screw insertion position for distal radius
fractures with VSF fragments… ………………………………………………………… S107
Ehime Prefectural Central Hosp., Ehime, Japan  Kei Morizane－ 144 －

1-4-MT6-6

Three-dimensional morphometric analysis on palmar cortical shape of the lunate
fossa of the distal radius…………………………………………………………………… S107
Tsukuba Medical Center Hosp., Ibaraki, Japan  Yusuke Eda

Main Theme 7

Distal radius fractures, Complications（10:50 ～ 11:50）
1-4-MT7-1

Chair: Y. Abe

Factors that cause tendon rupture after distal radius fracture surgery…………… S108
Hikone Municipal Hosp., Shiga, Japan  Takaaki Sugiyama

1-4-MT7-2

Intraosseous wiring for the prevention of V-Shaped articular surface deformity
in volar displaced distal radius intra-articular fractures……………………………… S108
Tokyo Metropolitan Bokutoh Hosp., Tokyo, Japan  Yoshiyuki Matsuyama

Open wedge osteotomy using condylar stabilizing technique for malunited
distal radius fractures……………………………………………………………………… S109
Ogikubo Hosp., Tokyo, Japan  Masao Nishiwaki

1-4-MT7-4

Three cases of acute compartment syndrome of the forearm after pediatric
upper extremity trauma…………………………………………………………………… S109
Niigata City General Hosp., Niigata, Japan  Keisuke Ishizaka

1-4-MT7-5

Two cases of plate failure after distal radius fracture surgery requiringrevision surgery… ………………………………………………………………………… S110
Hiroshima Ciy Hiroshima Citizens Hosp., Hiroshima, Japan  Shungo Sasamine

1-4-MT7-6

Treatment results for Peri-implant fractures after volar locking plate fixation for
distal radius fractures……………………………………………………………………… S110
Showa Univ. Northern Yokohama Hosp., Kanagawa, Japan  Ryosuke Matsuki

Noontime Lecture 3（12:00 ～ 13:00）
1-4-NL3

Chair: T. Baba

Choice of BHA-approach is critical… …………………………………………………… S507
Osaka City General Hosp., Osaka, Japan  Yosuke Nagai

Oral 2

Infection, CLAP

（14:30 ～ 14:55）
1-4-O2-1

Chair: A. Maruo

Prognostic factors influencing the occurrence of drug-induced renal dysfunction
during continuous local perfusion therapy……………………………………………… S181
Nagoya Ekisaikai Hosp., Aichi, Japan  Yuki Fujihara

1-4-O2-2

Does treatment of fracture-related infection with continuous local antimicrobial
perfusion allow preservation of internal fixation material?
-A study of clinical time of onset of infection-… ……………………………………… S181
Aidu Traumatology and Reconstruction Surg. Center, Aidu Chuo Hosp. / …

Fukushima Medical Univ., Trauma and Reconstructive Center, Fukushima, Japan  Satoshi Hatashita－ 145 －

Day 1
Room 41-4-MT7-3

1-4-O2-3

The usefulness of continuous local antibiotic perfusion therapy based on its
bactericidal effect in eradicating bacteria… …………………………………………… S182
Hiroshima Univ. Hosp., Hiroshima, Japan  Rikuo Shinomiya

Oral 3

Open fractures（15:20 ～ 16:10）
1-4-O3-1

Chair: A. Kogure

Outcome of severe extremity trauma treated with the fix followedby flap strategy……………………………………………………………………………… S182
Yonemori Hosp., Trauma Reconstruction Center, Kagoshima, Japan  Tatsuhiko Muraoka

1-4-O3-2

The treatment of Gustilo type IIIB open fractures of the lower extremityin over 80 years… ………………………………………………………………………… S183
Dept. of Orthop. Surg., Fukushima Medical Univ. / …
Dept. of Traumatology, Fukushima Medical Univ., Fukushima, Japan  Shunsuke Sato

1-4-O3-3

Outcome of treatment of Gustilo type 3 open fractures of the lower extremity
at our hospital… …………………………………………………………………………… S183
Saga-ken Medical Centre Koseikan, Saga, Japan  Ko Sakai

1-4-O3-4

Clinical results of perforator-based propeller flap for soft tissue reconstruction inlower leg trauma…………………………………………………………………………… S184
Dept. of Orthop. Surg., Faculty of Medicine and Graduate School of Medicine, Hokkaido Univ., …
Hokkaido, Japan  Makoto Motomiya

1-4-O3-5

Keystone flap in soft tissue defects of the lower extremity associatedwith fracture………………………………………………………………………………… S184
Dept. of Emergency and Crinical Care Medicine, Saitama Medical Univ., …
Saitama, Japan  Katsuki Ota

1-4-O3-6

Treatment experience based on orthoplastic approach in 22 cases of severe
open fractures of the upper extremity… ……………………………………………… S185
Kameda Medical Center, Chiba, Japan  Hayato Kuno

Oral 4Pelvic ring fracture（16:20 ～ 17:00）
1-4-O4-1

Chair: N. Takahira

Removal rate of percutaneous screws for the pelvic ring fracturesin young adults……………………………………………………………………………… S185
Fukuyama City Hosp., Hiroshima, Japan  Tadahiro Hori

1-4-O4-2

Insertion technique and accuracy for IS and TITS using C-arm fluoroscopy……… S186
Tokyo Metropolitan Bokutoh Hosp., Tokyo, Japan  Yoshiyuki Matsuyama

1-4-O4-3

Lateral compression pelvic ring fracture using Beckmann score:
Indications for surgery, treatment outcome of LC I…………………………………… S186
Saiseikai Utsunomiya Hosp., Tochigi, Japan  Tomoki Kasahara－ 146 －

1-4-O4-4

The characteristics of fragility fracture of the pelvis complicatedwith hemorrhagic shock or acute anemia in elderly patients………………………… S187
Saga-ken Medical Centre Koseikan, Saga, Japan  Nobuaki Tsukamoto

1-4-O4-5

Experience with percutaneous screw insertion using the O-arm Navigation
for fragile pelvic fractures………………………………………………………………… S187
Seirei Sakura Citizen Hosp., Chiba, Japan  Masaya Mizutani

Day 1
Room 4－ 147 －

Day1・Room 5（Conference Bldg. 2F“Sakura 2”）
Main Theme 1

Clavicle fractures（8:30 ～ 9:20）
1-5-MT1-1

Chair: M. Uchino

Effects of clavicle shaft fracture and early open reduction internal fixation on
respiratory function…………………………………………………………………………… S90
Ohta Nishinouti Hosp., Fukushima, Japan  Kiichiro Nozaki

1-5-MT1-2

Surgical treatment for unstable fractures of the distal clavicle………………………… S90
Dept. of Orthop. Surg., Kitasato Univ. School of Medicine / …
Dept. of Emergency, Kitasato Univ. School of Medicine, …
Kanagawa, Japan  Terumasa Matsuura

1-5-MT1-3

Clinical characteristics of medial clavicle fractures… …………………………………… S91
Tokyo Metropolitan Hiroo Hosp. Emergency and Critical Care Medicine, …
Tokyo, Japan  Shoichiro Hamada

1-5-MT1-4

Risk factors for acromioclavicular joint dislocation after distal clavicle fracture
surgery… ……………………………………………………………………………………… S91
Chugoku Rosai Hosp., Hiroshima, Japan  Yoshihiro Nakamura

1-5-MT1-5

ZipTight for distal clavicle fractures. Guide allows safe insertion……………………… S92
Dept. of Orthop. Surg., Showa Univ. Northern Yokohama Hosp., …
Kanagawa, Japan  Masaya Yamaguchi

Main Theme 19

Periprosthetic fractures -THA-（9:30 ～ 10:20）

Chair: A. Kanda

1-5-MT19-1 Investigation of the effect of stem geometry on cementless periprosthetic
fractures for femoral neck fracture……………………………………………………… S144
Univ. of Fukui Hosp., Fukui, Japan  Makoto Kitade

1-5-MT19-2 Results of treatment for nonunion of peri-prosthetic fracture……………………… S144
Hyogo Prefectural Nishinomiya Hosp., Hyogo, Japan  Takahiro Niikura

1-5-MT19-3 Experience of treating periprosthetic femoral implant fractures… ………………… S145
Shuutou General Hosp., Yamaguchi, Japan  Kenji Hirata

1-5-MT19-4 Evaluation of stem laxity by intra-operative stem stability test for periprosthetic
femoral fracture… ………………………………………………………………………… S145
Dept. of Orthop. Surg., Juntendo Univ. Shizuoka Hosp., …
Shizuoka, Japan  Hiroaki Inoue

1-5-MT19-5 An experimental in vitro study of periprosthetic femoral fractures using Porotic
Bone Model: A comparative analysis between CMK and Exeter stem… ………… S146
Aichi Medical Univ. Hosp., Aichi, Japan  Kohei Hashimoto－ 148 －

Main Theme 20

Periprosthetic fractures-TKA & Others-（10:30 ～ 11:20）

Chair: M. Tokunaga

1-5-MT20-1 Evaluation of therapeutic strategy for femoral non-prosthetic peri-implantfractures……………………………………………………………………………………… S146
Kochi Health Sciences Center, Kochi, Japan  Tetsuya Yamamoto

1-5-MT20-2 Five cases with insufficiency periprosthetic fractures of the femoral condyle
early after total knee arthroplasty… …………………………………………………… S147
Fukuoka Orthop. Hosp., Fukuoka, Japan  Kohei Ishihara

1-5-MT20-3 Treatment experience using retrograde intramedullary nails for periprosthetic
fractures above total knee arthroplasty………………………………………………… S147
Saiseikai Senri Hosp., Osaka, Japan  Takuya Kawabata

1-5-MT20-4 Two cases of periprosthetic femoral implant fractures of Unified Classification
System (UCS) type D treated with osteosynthesis… ………………………………… S148
Dept. of Orthop. Surg., Faculty of Medicine and Graduate School of Medicine, …
Hokkaido Univ., Hokkaido, Japan  Kosuke Arita（12:00 ～ 13:00）
1-5-NL4

Chair: Y. Watanabe

Expanding the Scope of NPWT in Wound Care: Managing Acute Trauma to
Osteomyelitis………………………………………………………………………………… S508
Teikyo Univ. School of Medicine, Orthop. Surg. Dep., Tokyo, Japan  Gen Sasaki

Educational Lectures 1（14:30 ～ 15:30）
1-5-EL1-1

Chair: Y. Kobayashi

Surgical stratedy for 4part proximal humaral fracture… ……………………………… S18
Yokohama Municipal Citizen's Hosp., Kanagawa, Japan  Akihiro Nakazawa

1-5-EL1-2

Reverse Total Shoulder Arthroplasty for Proximal Humeral Fracturesin Elderly Patients… ………………………………………………………………………… S19
Iwaki City Medical Center, Fukushima, Japan   Toshitake Aizawa

Educational Lectures 2（15:40 ～ 16:40）
1-5-EL2-1

Chair: S. Iwabu

35 years of dealing with distal radius fractures…………………………………………… S20
Hiratsuka Kyosai Hosp., Kanagawa, Japan  Hiroaki Sakano

1-5-EL2-2

Treatment strategy of scaphoid fracture… ……………………………………………… S21
Kanazawa Medical Center, Ishikawa, Japan  Kazuo Ikeda－ 149 －

Day 1
Room 5

Noontime Lecture 4

Evening Seminar 2（17:20 ～ 18:20）
1-5-EVS2Chair: M. Ito

Pathophysiology and treatment strategies for secondary osteoporosis…………… S531
Dept. of Orthop. Surg. Tohoku Univ. Graduate School of Medicine, …
Sendai, Japan  Yu Mori

－ 150 －

Day1・Room 6（Conference Bldg. 3F“Shirakashi 1”）
Oral 5

Proximal femoral fractures 1（8:30 ～ 9:05）
1-6-O5-1

Chair: Y. Kinami

The outcomes of nonoperative cases of hip fractures………………………………… S188
Showa General Hosp., Tokyo, Japan / …
Shinyurigaoka General Hosp., Kawasaki, Japan  Shota Nakagawa

1-6-O5-2

Is reduction of undisplaced femoral neck fracture necessary?… …………………… S188
Asahikawa Red Cross Hosp., Hokkaido, Japan  Yuki Kamo

1-6-O5-3

Clinical results between middle nail and long nail for femoral trochantericfractures……………………………………………………………………………………… S189
Hirosaki Univ. Hosp., Aomori, Japan  Masakazu Kogawa

1-6-O5-4

Utilization of soft tissue CT in the diagnosis of occult femoral trochantericfracture… …………………………………………………………………………………… S189
Higashisumiyoshi Morimoto Hosp., Osaka, Japan  Kei Taniura

Proximal femoral fractures 2

Investigation into preoperation waiting period and complications of theproximal femoral fracture in our hospatal… …………………………………………… S190
Oita-San-ai Medical Center, Oita, Japan  Naotoshi Ninomiya

1-6-O6-2

Factors contributing to the occurrence of femoral neck fractures andtrochanteric fractures……………………………………………………………………… S190
Tamashima Central Hosp., Okayama, Japan  Yohei Kagawa

1-6-O6-3

Treatment results of osteosynthesis for femoral neck fractures and study of
LSC cases… ………………………………………………………………………………… S191
Izumi City General Hosp., Osaka, Japan  Takuya Tachibana

1-6-O6-4

Treatment results of revision surgery using Delta-LOCK stem
for periprosthetic femoral fracture in elderly patients………………………………… S191
Akashi City Hosp., Hyogo, Japan  Takaaki Matsui

1-6-O6-5

Removal of Hansson Pinloc System is helpful… ……………………………………… S192
Asahikawa Red Cross Hosp., Hokkaido, Japan  Yuki Kamo

Oral 7

Proximal femoral fractures 3（10:10 ～ 11:00）
1-6-O7-1

Chair: N. Takada

Shape of femoral marrow cavity is correlated with femoral bone density… ……… S192
Tamegashima Medical Center, Kagoshima, Japan  Takashi Setoyama－ 151 －

Day 1
Room 61-6-O6-1

Chair: T. Hiranaka

Day 1
Room 5

Oral 6（9:20 ～ 10:00）

1-6-O7-2

T-score discordance of bone mineral density between femoral neck fracture
and trochanteric fracture… ……………………………………………………………… S193
Hyogo Prefectural Nishinomiya Hosp., Nishinomiya, Japan  Tomohiro Date

1-6-O7-3

Can D-dimer measurement predict deep venous thrombosis in patientswith proximal femur fracture?…………………………………………………………… S193
Kumamoto Chuo Hosp., Kumamoto, Japan  Yosuke Kawatani

1-6-O7-4

Efficacy of aromatherapy for postoperative delirium in proximal femoral
fracture patients… ………………………………………………………………………… S194
Dept. of Orthop. Surg., Iga City General Hosp., Mie, Japan  Kouji Kita

1-6-O7-5

Effect of low concentration dexamethasone added fascia iliaca compartment block
for post operative pain management proximal femur fracture……………………… S194
Suzuka General Hosp., Suzuka, Japan  Koyo Ohara

1-6-O7-6

Risk factors for non-union in femoral neck fractures patients with internal fixation:
A multicenter(TRON Group) retrospective study……………………………………… S195
Chubu Rosai Hosp., Aichi, Japan  Shingo Kurahashi

Oral 8External fixation（11:10 ～ 11:50）
1-6-O8-1

Chair: N. Takenaka

Study of three methods for temporary external fixation of the ankle joint………… S195
Dept. of Orthop. Surg., Tokai Univ. Hachioji Hosp., Tokyo, Japan  Yuka Kobayashi

1-6-O8-2

Thromboprophylaxis with edoxaban in patients undergoing external fixation
for fractures of the lower extremity… ………………………………………………… S196
Tosei General Hosp., Aichi, Japan  Yuka Ishiyama

1-6-O8-3

Examination of the acute shortening distraction method performed
at our hospital… …………………………………………………………………………… S196
Dept. of Orthop., Surg., Showa Univ. Fujigaoka Hosp., Kanagawa, Japan  Yuto Murakami

1-6-O8-4

Ingenuity for minimally invasive internal fixation using intraoperative external
fixation… …………………………………………………………………………………… S197
Saitama Medical Center, Kawagoe, Japan  Tsubasa Takahashi

1-6-O8-5

Whether the number of surgeries and fracture types changed as a result of
the change in Japanese medical services for temporary external fixation
fracture treatment… ……………………………………………………………………… S197
Hyogo Emergency Medical Center, Kobe, Japan  Keitaro Tada

Noontime Lecture 5（12:00 ～ 13:00）
1-6-NL5

Chair: E. Itoi

Treatment Strategy for Osteoporotic Vertebral Fractures-Introduction of a Regional Cooperative Clinical Path in Kure City,
Hiroshima Prefecture-……………………………………………………………………… S509
Chugoku Rosai Hosp., Hiroshima, Japan  Takahiko Hamasaki－ 152 －

English Session 1

Pelvis and Acetabular（14:30 ～ 15:30）

Chairs: K. J. Ponsen
M. Yorimitsu

1-6-ES1-1

Simultaneous ventral and dorsal approach in treating acetabular fracture
involving both columns with displaced posterior wall………………………………… S331
Chang Gung Memorial Hosp., Linkou Main Branch, Taiwan  Yi-Hsun Yu

1-6-ES1-2

Factors of irreducible traumatic hip dislocation… …………………………………… S331
Juntendo Shizuoka Hosp., Shizuoka, Japan  Tomoko Wakejima

1-6-ES1-3

Novel implant for treatment of posterior acetabular wall and column fractures………………………………………………………………………………………………… S332
Show Chwan Memorial Hosp., Taiwan  Chang-Han Chuang

1-6-ES1-4

Surgical outcomes of acetabular fracture of elderly patients withsuperomedial dome impaction… ………………………………………………………… S332
Asan Medical Center, Univ. of Ulsan College of Medicine, Korea  Ji Wan Kim

1-6-ES1-5

Incidence of deep vein thrombosis and pulmonary thromboembolism in patientswith pelvic ring acetabular fracture. Did COVID-19 have an impact?……………… S333
Yamagata Prefectural Central Hosp., Yamagata, Japan  Nobuhito Nemoto

1-6-ES1-6

Residual Pelvic Deformity May Cause Higher Rate of Caesarean Section in
Pregnant Women Following Prior Pelvic Ring Injuries… …………………………… S333

English Session 2

Lower extremity 1（15:45 ～ 16:45）

Chairs: L. P. Rojas
E. Shoda

1-6-ES2-1

Fracture type of basal neck fractures associated with femoral reverse obliquefractures……………………………………………………………………………………… S334
Kurume Univ. Hosp. / Saiseikai Futsukaichi Hosp., Fukuoka, Japan  Toru Matsugaki

1-6-ES2-2

Failure after intramedullary nailing for geriatric trochanteric fractures: does qualityof fracture reduction on the AP and lateral planes show the same results?… … S334
CHA Bundang Medical Center, CHA Univ., Korea  Seong-Eun Byun

1-6-ES2-3

Total hip arthroplasty for femoral neck fractures in the elderly… ………………… S335
Sapporo Higashi Tokushukai Hosp. / Dept. of Orthop. Surg., Faculty of Medicine and …
Graduate School of Medicine, Hokkaido Univ., Sapporo, Japan  Yoshio Nishida

1-6-ES2-4

Safety and outcome of immediate weight bearing after hip fracture fixation……… S335
Far Eastern Memorial Hosp., New Taipei City, Taiwan  Chiang Sang (Vincent) Chen

1-6-ES2-5

Tension band fixation for patellar fractures: A study of failure factors… ………… S336
Yamanashi Prefectural Central Hosp., Yamanashi, Japan  Hiroaki Iwase

1-6-ES2-6

Complex tibial plateau fractures: Highlighting pitfalls and offering tips… ………… S336
Hanyang Univ. Guri Hosp., Korea  Ki Chul Park－ 153 －

Day 1
Room 6

Chang Gung Memorial Hosp., Taiwan  Chih-Yang Lai

English Session 3

Lower extremity 2 and Miscellaneous（17:00 ～ 18:00）

Chairs: T. Apivatthakakul
S. Kitada  

1-6-ES3-1

Developing a registry for trauma patients:
A prospective cohort study (TARGET)… ……………………………………………… S337
Dept. of Orthop. Surg., Teikyo Univ. School of Medicine / …
Trauma & Reconstruction Center, Teikyo Univ. Hosp. / …
Teikyo Academic Research Center, Tokyo, Japan  Takahiro Inui

1-6-ES3-2

Is it possible to maintain the early internal fixation with CLAP for high infection
risk group of open fractures……………………………………………………………… S337
Hyogo Prefectural Harima-Himeji General Medical Center, …
Himeji, Japan  Toshiki Kitamura

1-6-ES3-3

Differences in Pilon Fractures According to Ipsilateral Fibular Injury Patterns:
A Clinical Computed Tomography-Based Mapping Study…………………………… S338
Chosun Univ. Gwangju, Korea  Jun-Young Lee

1-6-ES3-4

Use of primary external fixator in Japan: Study using NDB open data… ………… S338
Teikyo Univ. School of Medicine, Tokyo, Japan  Natsumi Saka

1-6-ES3-5

Three-column subdivision for isolated posterolateral tibial plateau fractures andperspective surgical approaches… ……………………………………………………… S339
Gachon Univ. College of Medicine, Incheon, Korea  Jae Ang Sim

1-6-ES3-6

Finite element analysis of swing motion difference between intramedullary nailfixation modes… …………………………………………………………………………… S339
The Aichi Prefectural Federation of Agricultural Cooperative for …
Health and Welfare Kainan Hosp., Yatomi, Japan  Hidetoshi Iwata－ 154 －

Day1・Room 7（Conference Bldg. 3F“Shirakashi 2”）
Oral 9Ankle fractures 1（8:30 ～ 9:20）
1-7-O9-1

Chair: Y. Nishii

Frequency of distal tibiofibular separation in cases of ankle malleolar fracture
surgery without syndesmosis repair… ………………………………………………… S198
Seirei Hamamatsu Hosp., Hamamatsu, Japan  Masanori Taki

1-7-O9-2

2 type of malleolar fracture caused by hyper-plantar flexion………………………… S198
Niigata Rinko Hosp., Niigata, Japan  Akira Sato

1-7-O9-3

Strategy of treatment for ankle malleolar fracture Weber type C-About fibular reduction and tibiofibular fixation-……………………………………… S199
Chikamori Hosp., Kochi, Japan  Yukinobu Nishii

1-7-O9-4

Two cases of Checkrein Deformity occurring after ankle fracture… ………………… S199
Juntendo Univ. Shizuoka Hosp., Shizuoka, Japan  Takahiro Morikawa

1-7-O9-5

Localization of open wounds in ankle open fractures based on fracture type…… S200
St. Marianna Univ. of Medicine, Kanagawa, Japan  Yoshimichi Onose

1-7-O9-6

Initial fixability of low-level fracture line in type B ankle fractureby anti-glide plating………………………………………………………………………… S200
Tokyo Metropolitan Tama Medical Center, Tokyo, Japan  Ryota Ide
Day 1
Room 6

Oral 10

Ankle fractures 2（9:30 ～ 10:10）

Devices in insertion of suture button for syndesmosis injuries by developmentof a new guide… …………………………………………………………………………… S201
Tokyo Metropolitan Hiroo Hosp., Tokyo, Japan  Shinya Adachi

1-7-O10-2

Intramedurally fibular fixation for ankle fracture with worried aboutwound complication………………………………………………………………………… S201
The Dept. of Emergency and Intensive Care, Univ. of Occupational Environmental Health Japan,…
Fukuoka, Japan  Naohito Sato

1-7-O10-3

Assessment of treatment of internal brace for Maisonneuve fracture using
Self-Administered Foot Evaluation Questionnaire… …………………………………… S202
Hiraka General Hosp., Akita, Japan  Shuichi Chida

1-7-O10-4

Two cases report: Posterior arthroscopic assisted plate fixation for displaced
posterior malleolar fracture of the ankle………………………………………………… S202
East Maebashi Orthop. Hosp., Maebashi, Japan  Naohiro Hio

1-7-O10-5

A study of internal fixation for posterior malleolar fracture of the ankle… ……… S203
Tokyo Medical Univ., Tokyo, Japan  Takanori Hatanaka－ 155 －

Day 1
Room 71-7-O10-1

Chair: S. Sato

Oral 11

Fractures and dislocation of the talus（10:20 ～ 11:00）
1-7-O11-1

Chair: T. Doi

Treatment for subtalar joint dislocation; A report of 3 cases………………………… S203
Saitama Medical Univ. International Medical Center, Saitama, Japan  Shintaro Kato

1-7-O11-2

Three cases of subtalar joint dislocation treated with ligament repair… ………… S204
Dept. of Orthop. Surg., Surgical Science, Tokai Univ. School of Medicine, …
Kanagawa, Japan  Yasuyuki Sogo

1-7-O11-3

Treatment of talus neck fracture………………………………………………………… S204
Trauma Reconstruction Center, Yonemori Hosp., Kagoshima, Japan  Yoshinori Ueno

1-7-O11-4

Ligament repair and early range of motion exercise for medial subtalar dislocation:
A report of two cases……………………………………………………………………… S205
Dept. of Orthop. Surg., Suzuka General Hosp., Mie, Japan  Nobuto Nagao

1-7-O11-5

Staged operation for dislocation fracture of the talus… ……………………………… S205
Juntendo Univ. Shizuoka Hosp., Shizuoka, Japan  Kana Fujimoto

Oral 12

Lisfranc fracture & dislocation（11:10 ～ 11:50）
1-7-O12-1

Chair: S. Isefuku

Outcome after surgical treatment for Lisfranc injuries… …………………………… S206
Kita-Harima Medical Center, Hyogo, Japan  Sumire Yamaguchi

1-7-O12-2

Results of surgical treatment of 17 dislocated fractures of Lisfranc's joint… ………… S206
Suita Municipal Hosp., Osaka, Japan  Takuya Koyama

1-7-O12-3

Short term outcomes of surgical treatments of Lisfranc fracture dislocation
with locking plate and screw……………………………………………………………… S207
Dept. of Orthop. Surg., Hokkaido Univ. Graduate School of Medicine, …
Sapporo, Japan  Kyosuke Numaguchi

1-7-O12-4

Usefulness of the 1st-2nd intermetatarsal screw in combination with platefixation for Lisfranc's joint injury………………………………………………………… S207
Dept. of Foot & Ankle Surg., Seirei Hamamatsu General Hosp., …
Shizuoka, Japan  Kazunari Oshima

1-7-O12-5

High-energy Lisfranc joint fracture-dislocation fixed with DynaNite… …………… S208
Tohoku Univ. Hosp., Sendai, Japan  Tatsuya Ikeda

Oral 13

Periprosthetic fractures（14:30 ～ 15:10）
1-7-O13-1

Chair: Y. Anraku

Stem revision for periprosthetic femoral fracture in elderly patients over 85 yearsof age… ……………………………………………………………………………………… S208
Tokyo Women's Medical Univ., Tokyo, Japan  Yutaro Munakata－ 156 －

1-7-O13-2

The problem when replacing the head element of the femoral neck with
TFNA cement… …………………………………………………………………………… S209
Fukuyama City Hosp., Hiroshima, Japan  Yukimasa Okada

1-7-O13-3

Treatments of the revision osteosynthesis for the periprosthetic femoral
fractures……………………………………………………………………………………… S209
Orthop. Kitasato Univ., Kagagawa, Japan  Tadashi Kawamura

1-7-O13-4

Relationship between the risk of periprosthetic hip fracture and the medullary
canal shape after the fragility hip fracture……………………………………………… S210
Kagawa Prefectural Central Hosp., Kagawa. Japan  Tsubasa Hasegawa

1-7-O13-5

Two cases of periprosthetic atypical femoral fracture operated by double
plate… ……………………………………………………………………………………… S210
Sano Memorial Hosp., Osaka, Japan  Suguru Nakamura

Oral 14

Interprofessional Work 1（15:20 ～ 16:00）
1-7-O14-1

Chair: K. Shigemoto

Effect of osteoporosis treatment before and after osteoporosis liaison service
intervention for proximal femur fractures……………………………………………… S211
Harasanshin Hosp., Fukuoka, Japan  Naohide Takeuchi

1-7-O14-2

Effect of inter hospital and regionl alliance liaison service for prevention ofsubsequent fragility hip fractures………………………………………………………… S211
Kouseiren Takaoka Hosp., Toyama, Japan  Daigo Sakagoshi

1-7-O14-3

The current status and challenges of FLS activities at our institution………………… S212
Komaki City Hosp., Aichi, Japan  Kyoka Kawamura

Consideration of secondary fractures prevention ongoing management fee
calculation and used drugs………………………………………………………………… S212
Kasugai Municipal Hosp., Aichi, Japan  Hiroyuki Suzuki

1-7-O14-5

The current situation and issues for secondary femoral proximal fracture
prevention follow-up charge at our hospital… ………………………………………… S213
Kanmon Medical Hosp., Yamaguchi, Japan  Ryutaro Kuriyama

Oral 15Interprofessional Work 2（16:10 ～ 16:50）
1-7-O15-1

Chair: M. Takaesu

Effects of introducing a fracture liaison service on proximal femur fractures;
Retrospective comparative study before and after introduction… ………………… S213
Kawasaki Medical School Dept. of Orthop. Surg. and Sport Medicine, …
Okayama, Japan  Kazuto Hirai

1-7-O15-2

Current status of osteoporosis treatment in patients with distal radius fractures
treated with plate osteosynthesis in hospitals without fracture liaison service…… S214
Keijinkai Shiroyama Hosp., Gunma, Japan / Showa Univ., Tokyo, Japan  Sang Yang Lee－ 157 －

Day 1
Room 71-7-O14-4

1-7-O15-3

Challenges in achieving early surgical intervention for proximal femur
fractures……………………………………………………………………………………… S214
Japanese Red Cross Kobe Hosp., Kobe, Japan  Takao Ohmori

1-7-O15-4

Team building to enable early surgery for proximal femur fractures……………… S215
National Hosp. Organization Nagasaki Medical Center, Nagasaki, Japan  Keisuke Mori

1-7-O15-5

Effect of waiting time for surgery for hip fracture on postoperative walking
ability………………………………………………………………………………………… S215
Nishinomiya Kyoritu Neurosurgical Hosp., Hyogo, Japan  Takashi Taniuchi－ 158 －

Day1・Room 8（Exhibition Bldg. lF“Room 4”）
Main Theme 14

Image evaluation・Three-dimensional analysis, Diagnosis（8:30 ～ 9:30）

Chair: H. Minehara

1-8-MT14-1 CT is not always necessary for femoral trochanteric fractures in elderly patients…… S129
National Hosp. Organization Nagasaki Medical Center, Nagasaki, Japan  Junya Mukai

1-8-MT14-2 Classification of femoral intertrochanteric fractures using artificial intelligence… … S129
Hyogo Prefectual Kakogawa Medical Center, Hyogo, Japan  Kensuke Yoshida

1-8-MT14-3 Construction of algorism for fracture detection using super-resolution imaging… … S130
Himeji Central Hosp., Hyogo ,Japan  Mitsuaki Noda

1-8-MT14-4 Preoperative Ultrasound Examination to prevent neurovascular injuries… ……… S130
Niigata Central Hosp., Niigata, Japan / …
Tsuruoka Municipal Shonai Hosp., Yamagata, Japan  Kazuya Yamada

1-8-MT14-5 Development of 2D-3D registration technology based on coordinate regression of
X-ray images………………………………………………………………………………… S131
Tokyo Medical Univ. Ibaraki Medical Center, Ibaraki, Japan  Yuichi Yoshii

1-8-MT14-6 Immediate effect of the educational workshop on the three-dimensional kinematics
of ankle manual anterior drawer test… ………………………………………………… S131
Dept. of Orthop. Surg., Graduate School of Medical and Pharmaceutical Sciences, …
Chiba Univ., Chiba, Japan  Hirofumi Nakajima

Main Theme 15

Image evaluation・Three-dimensional analysis 1（9:40 ～ 10:40）

Chair: T. Kurozumi
Day 1
Room 7

1-8-MT15-1 Visualization of quadriceps femoris injuries associated with open femoral
fracture using image analysis workstation……………………………………………… S132
Kainan Hosp., Aichi, Japan  Riko Takada

Hokkaido Univ. Hosp., Hokkaido, Japan  Yuki Ogawa

1-8-MT15-3 Biomechanical study of screw and fixed angle device in treatment of
non-displaced femoral neck fractures using finite element analysis-Appropriate implant selection for each Pauwels angle-……………………………… S133
Graduate School of Medicine, Univ. of the Ryukyus, Okinawa, Japan  Sakura Kuniyoshi

1-8-MT15-4 Outcome of intramedullary nail treatment for tibial diaphyseal fractures andtechniques for rotational restoration… ………………………………………………… S133
Nagasaki Univ. Hosp. Trauma Center, Nagasaki, Japan  Jin Ikenaga

1-8-MT15-5 Postoperative alignment differences based on insertion techniques of
intramedullary nailing for tibial shaft fractures………………………………………… S134
Sakai City Medical Center, Osaka, Japan  Atsuki Ohno

－ 159 －

Day 1
Room 81-8-MT15-2 Comparison of hip morphological features between femoral neck fracturesand femoral trochanteric fractures… …………………………………………………… S132

1-8-MT15-6 The relationship between the standard sagittal starting point of tibia intramedullary
nails and the tibial axis: A computed tomography-based analysis…………………… S134
Oita Univ. Hosp., Oita, Japan  Taro Ishida

Main Theme 16

Image evaluation・Three-dimensional analysis 2（10:50 ～ 11:40）

Chair: N. Kanda

1-8-MT16-1 A multicenter study of femoral malrotation after antegrade intramedullary
nailing of subtrochanteric femoral fractures… ………………………………………… S135
Okayama Univ. Hosp., Okayama, Japan  Ryuichiro Okuda

1-8-MT16-2 The choice of long nail suitable for Japanese elderly people… ……………………… S135
Kagawa Rosai Hosp., Kagawa, Japan  Tomoki Uzu

1-8-MT16-3 Relationship between femoral lateral bowing and rotational alignment of the nailin osteosynthesis for femoral intertrochanteric fracture using middle nail withthe lateral bowing angle of 5 degrees…………………………………………………… S136
Juzen Memorial Hosp., Hamamatsu, Japan  Moehito Sakaida

1-8-MT16-4 Analysis of the course of the Lateral Circumflex Femoral Artery using
angiographic CT: A proposed method for the insertion of reduction tools
during surgery for intertrochanteric fractures………………………………………… S136
Univ. of Occupational and Environmental Health, Fukuoka, Japan  Daishi Hamada

1-8-MT16-5 Investigation of fixation force depending on the position of the rod for circular
external fixator……………………………………………………………………………… S137
Akita Univ. Graduate School of Medicine  Koji Nozaka

Noontime Lecture 6（12:00 ～ 13:00）
1-8-NL6

Chair: Y. Anraku

Lateral cortical notching (LCN) can heal trochanteric non-unions… ………………… S510
Paracelsus Private Medical Univ., Germany  Hermann Josef Bail

Main Theme 17

Image evaluation・Three-dimensional analysis, Bone density（14:30 ～ 15:30）

Chair: T. Nakajima

1-8-MT17-1 Clinical examination of fracture risk assessment and severity classification inproximal femoral fractures using the novel bone strength index (BRI)… ………… S137
Nokami Kosei General Hosp., Wakayama, Japan  Takuji Matsumoto

1-8-MT17-2 Implant selection for unstable femoral neck fractures………………………………… S138
Tosei General Hosp., Aichi, Japan  Shinya Kataoka

1-8-MT17-3 Effects of TBS on bone density, body mass index, and nutritional indices inelderly women -The important relationship between bone quality andnutritional status revealed………………………………………………………………… S138
Nokami Kosei General Hosp., Wakayama, Japan  Takuji Matsumoto－ 160 －

1-8-MT17-4 Prediction of bone mineral density and bone strength of the proximal femur
using preoperative CT… ………………………………………………………………… S139
Kagawa Rosai Hosp., Kagawa. Japan  Takashi Maehara

1-8-MT17-5 Bone mineral density measurement from hip CT images… ………………………… S139
Osaka Univ., Osaka, Japan  Keisuke Uemura

1-8-MT17-6 Osteoporosis screening AI leading to primary prevention of fragility fracture……… S140
Trauma & Reconstruction Center, Teikyo Univ. Hosp. / …
Dept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Yuichi Imoto

Oral 16

Image evaluation・Three-dimensional analysis 1（15:40 ～ 16:20）
1-8-O16-1

Chair: S. Oki

3D-CT imaging creation according to template by orthopedic surgeons for
accurate preoperative planning…………………………………………………………… S216
Dept. of Orthop , Graduate School of Medical Science, Kyoto Prefectural Univ. of Medicine, …
Kyoto, Japan  Naoyuki Horie

1-8-O16-2

Posterior protrusion measures (PPM) for 3D CT classification of
pertrochanteric fractures… ……………………………………………………………… S216
Himeji Central Hosp., Hyogo ,Japan  Mitsuaki Noda

1-8-O16-3

Utility in diagnosing occult fractures of the proximal femur using
Dual-Energy CT… ………………………………………………………………………… S217
Hyogo Kenritsu Nishinomiya Hosp. / Kobe Univ. Hosp., Kobe, Japan  Kei Yamada

1-8-O16-4

Assessment of femoral head bone mineral density using Hounsfield units inintertrochanteric femoral fracture………………………………………………………… S217
NHO Saga Hosp., Saga, Japan  Shuichi Eto

1-8-O16-5

Examination of the usefulness of Cortical thickness index as an indicator for severe
osteoporosis… ……………………………………………………………………………… S218
Tsukuba Central Hosp. / Tsukuba Univ. Hosp., Tsukuba, Japan  Hiromi Mochizuki

Image evaluation・Three-dimensional analysis 2（16:30 ～ 17:20）
1-8-O17-1

Day 1
Room 8

Oral 17

Chair: H. Morii

Causes and countermeasures for 2 types, large postoperative shortening after
lateral anatomic reduction of proximal femoral fractures… ………………………… S218
Keiou Hosp., Nara, Japan  Ikufumi Yamada

1-8-O17-2

Intraoperative assessment of reduction status in trochanteric fracture surgery
using fluoroscopic anteromedial cortex view…………………………………………… S219
Oita Univ., Dept. of Orthop. Surg., Yufu, Japan  Shozo Kanezaki

1-8-O17-3

Anatomically, offset nails are advantageous for placing lag screws in the center ofthe femoral head in proximal femoral fracture nail surgery… ……………………… S219
Keiou Hosp., Nara, Japan  Ikufumi Yamada－ 161 －

1-8-O17-4

Is sonography useful in confirming carpometacarpal joint fracture-dislocation?… … S220
Dept. of Orthop. Surg., Tokyo Women's Medical Univ. Yachiyo Medical Center, …
Chiba, Japan  Nahoko Iwakura

1-8-O17-5

Relationship between reduction position and femoral neck anteversion in
osteosynthesis for femoral intertrochanteric fracture using middle nail withthe lateral bowing angle of 5 degrees…………………………………………………… S220
Juzen Memorial Hosp., Hamamatsu, Japan  Moehito Sakaida

1-8-O17-6

Outcome of osteosynthesis for femoral neck fractures using TWINS……………… S221
Central Japan International Medical Center, Gifu, Japan  Masanori Kito

－ 162 －

Day1・Room 9（Exhibition Bldg. lF“Room 3”）
Main Theme 12

Spinal injury（8:30 ～ 9:30）

Chair: K. Inokuchi

1-9-MT12-1 Analysis of the fracture Domino effect in vertebral body fractures: Investigationof the relationship with fracture age, femoral bone density, and body mass index…… S123
Nokami Kosei General Hosp., Wakayama, Japan  Takuji Matsumoto

1-9-MT12-2 Muscle mass by site according to inBody of hospitalized fracturesof the spine over 65 years of age……………………………………………………… S123
Japanese Red Cross Okayama Hosp., Okayama, Japan  Kensuke Ando

1-9-MT12-3 Training system for cervical vertebral arch using supervised data………………… S124
Graduate School of Tokyo Denki Univ., Saitama, Japan  Taiga Tanaka

1-9-MT12-4 Evaluation of the reliability of dual energy CT in the diagnosis of sacral
fractures……………………………………………………………………………………… S124
Dept. of Orthop. Surg., Hyogo Prefectural Nishinomiya Hosp., Hyogo, Japan  Takahiro Oda

1-9-MT12-5 Characteristics of vertebral fractures associated with diffuse idiopathic skeletal
hyperostosis… ……………………………………………………………………………… S125
Ehime Rosai Hosp., Ehime, Japan  Yuji Nagao

1-9-MT12-6 A study of our surgical technique for osteoporotic vertebral fractureswith prolonged fusion and nonunion cases……………………………………………… S125
Yamaguchi Univ. Graduate School of Medicine, Yamaguchi, Japan  Yusuke Ichihara

Main Theme 28

Pediatric humerus fracture（9:50 ～ 10:30）

Chair: M. Kameyama

1-9-MT28-1 Consideration of conservative and surgical treatment for pediatric humeral
medial epicondyle fractures… …………………………………………………………… S170
1-9-MT28-2 Ultrasound and radiological features of supracondylar humerus fracturesin children… ………………………………………………………………………………… S170

Day 1
Room 8Chutoen General Medical Center, Shizuoka, Japan  Takumi Miyachi

Dept. of Orthop. Surg., Showa Univ. Fujigaoka Hosp., Kanagawa, Japan  Tomohiro Yasuda

Showa Univ. Fujigaoka Hosp., Kanagawa, Japan  Ryu Igaki

1-9-MT28-4 Cartilage hinge in pediatric lateral humeral condyle fractures can be detectedwith ultrasound……………………………………………………………………………… S171
Trauma & Reconstruction Center, Teikyo Univ. Hosp. / …
Dept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Tomoo Nakagawa－ 163 －

Day 1
Room 9

1-9-MT28-3 Pathoanatomy of the medial comminution of pediatric distal humeral
supracondylar fracture: Assessment using CT images… …………………………… S171

Main Theme 29

Pediatric femoral diaphyseal fractures（10:40 ～ 11:30）

Chair: A. Nakazawa

1-9-MT29-1 Treatment outcomes for pediatric diaphyseal fractures of the tibia and fibula
at our hospital… …………………………………………………………………………… S172
Saga Prefecture Hosp. Koseikan, Saga, Japan  Yuto Tashiro

1-9-MT29-2 Intramedullary nail fixation for pediatric femoral shaft fractures…………………… S172
Dept. of Orthop. Surg., Yokohama Municipal Citizen's Hosp., …
Yokohama, Japan  Akihiro Nakazawa

1-9-MT29-3 What are the clinical outcomes and risk factors for overgrowth in cases oftitanium elastic nailing (TEN) use in the treatment of pediatric lower
extremity fractures?… …………………………………………………………………… S173
Kyushu Univ. Hosp. Emergency & Critical Care Center, Fukuoka, Japan  Takahiro Inoue

1-9-MT29-4 Comparison of clinical outcomes in pediatric femoral shaft fractures treatedwith Ender Nail and TEN………………………………………………………………… S173
Jichi Medical Univ. Hosp., Tochigi, Japan  Eri Yasuda

1-9-MT29-5 Is conservative treatment the first choice in fractures of the extremities
in children with osteogenesis imperfecta?… …………………………………………… S174
Dept. of Orthop., Graduate School of Medical Science, Kyoto Prefectural Univ. of Medicine, …
Kyoto, Japan  Hirotaka Matsuura

Noontime Lecture 7（12:00 ～ 13:00）
1-9-NL7

Chair: H. Inoue

Treatment for Lisfranc fracture dislocations…………………………………………… S511
South Miyagi Medical Center, Sendai, Japan  Shuji Isefuku

Oral 18

Femoral Trochanteric fractures 1（14:30 ～ 15:10）
1-9-O18-1

Chair: Y. Abe

Current status and problems in the treatment of basicervical femoral neckfractures in our institute…………………………………………………………………… S221
Aomori Rosai Hosp., Aomori, Japan  Tetsushi Oyama

1-9-O18-2

Measurement of bone quality in the femoral head using a virtual short femoral
nail in proximal femur fractures… ……………………………………………………… S222
Advanced Critical Care and Emergency Center, Yokohama City Univ. …
Medical Center, Kanagawa, Japan  Daisuke Enomoto

1-9-O18-3

Relationships between CT values of femoral head and bone mineral densityin patients with femoral trochanteric fracture… ……………………………………… S222
Muroran City General Hosp., Hokkaido, Japan  Takashi Ochiai－ 164 －

1-9-O18-4

Treatment results for femoral trochanteric fractures in patients under 60 yearsof age… ……………………………………………………………………………………… S223
Kochi Health Sciences Center, Kochi, Japan  Yasuaki Yamakawa

1-9-O18-5

Study of lag screw sliding in basicervical fracture of the femur-Can basicervical fracture of the femur be stabilized by anchoring
the greater trochanter?-…………………………………………………………………… S223
Asao General Hosp., Kawasaki, Japan  Toshiro Yonezawa

Oral 19

Femoral Trochanteric fractures 2（15:20 ～ 16:00）
1-9-O19-1

Chair: T. Ikuta

Multicentre study on postoperative complications of cement augmentation TFNA…… S224
Yokohama City Univ. Medical Center, Kanagawa, Japan  Masahiro Matsumoto

1-9-O19-2

Usefulness of cotton type bone material when using TFNA cement augmentation
system in patients with bone defects in the femoral head and neck… …………… S224
Fukuyama City Hosp., Hiroshima, Japan  Takahiro Toriyama

1-9-O19-3

Clinical and radiological outcomes in patients with femoral trochantericfracture involving anterior wall fragment… …………………………………………… S225
Sugita Genpaku Memorial Obama Municipal Hosp., / …
Univ. of Fukui Hosp., Fukui, Japan  Kenichi Takeno

1-9-O19-4

Examination of relation between amount of Biopex and Bone density, CT value…… S225
Ise Red Cross Hosp., Mie, Japan  Ryusuke Kurata

1-9-O19-5

Can good reduction be achieved with an intramedullary nail (Hansson DC Nail)that can cause dynamization in the axial direction of the femur?…………………… S226
Kameda Medical Center, Chiba, Japan  Kazuyuki Nakazato

Oral 20

Femoral Trochanteric fractures 3（16:10 ～ 16:45）
1-9-O20-1

Chair: T. Maehara

Malrotation after internal fixation with short femoral nail for trochantericfemoral fracture… ………………………………………………………………………… S226
Okayama Rosai Hosp., Okayama, Japan  Akihiro Kanamaru

Insertion torque of lag screw for femoral trochanteric fractures affects early
postoperative walking ability……………………………………………………………… S227
Kugayama Hosp., Tokyo, Japan  Gaku Michihiro

1-9-O20-3

Risk factors of postoperative decline in walking ability in intertrochantericfracture… …………………………………………………………………………………… S227
Hyogo Medical Univ. Orthop. Surg., Nishinomya, Japan / …
Yuaikai Hosp., Osaka, Japan  Yuta Matsumae

1-9-O20-4

The factors for postoperative walking ability in patients over 90 years
with proximal femoral fractures… ……………………………………………………… S228
Dept. of Orthop. Surg., National Hosp. Organization Okayama Medical Center, …
Okayama, Japan  Sho Muguruma－ 165 －

Day 1
Room 91-9-O20-2

Day1・Room 10（Exhibition Bldg. lF“Room 2”）
Oral 21

Proximal femoral fractures in the elderly 1（8:30 ～ 9:20）
1-10-O21-1

Chair: S. Kitada

Perioperative complications of proximal femoral fractures with aortic valve
stenosis… …………………………………………………………………………………… S228
Kushiro City General Hosp., Hokkaido, Japan  Kenta Ishida1-10-O21-2

Relationship between GNRI score and clinical outcomes in patientswith proximal femoral fractures over 90 years………………………………………… S229
Funabashi Generall Hosp., Chiba, Japan  Shinya Matsukura

1-10-O21-3

Clinical outcomes of proximal femoral fractures patients over 90 years……………… S229
Okayama Medical Center, Okayama, Japan  Suguru Yokoo

1-10-O21-4

Continuation rate of secondary fracture prevention after proximal femur fracture
surgery and regional cooperation -One year after the start of the program… …… S230
Kobe Rousai Hosp., Kobe, Japan  Fumimasa Maruno

1-10-O21-5

Effectiveness and problem of osteoporosis liaison service path at our hospital… …… S230
Japanese Red Cross Kyoto Daiichi Hosp., Kyoto, Japan  Hideki Ueda

1-10-O21-6

Current status of FLS for orthopedic surgery in the island region of Tokyo……… S231
Tokyo Metropolitan Hiroo Hosp., Tokyo, Japan  Shinya Adachi

Oral 22

Proximal femoral fractures in the elderly 2（9:30 ～ 10:20）
1-10-O22-1

Chair: K. Yamazaki

Outcomes of femoral neck fracture in elderly population -Relationship between
CT values and complications-… ………………………………………………………… S231
Tsuyama Chuo Hosp., Okayama, Japan  Koji Demiya

1-10-O22-2

Factors to maintain postoperative walking ability for hip fractures………………… S232
Saiseikai Shiga Hosp., Shiga, Japan  Shinsuke Morisaki

1-10-O22-3

The new OLHS allows even unstable femoral trochanteric fractures to remain as
active as stable type… …………………………………………………………………… S232
Dept. of Traumatology, Fukushima Medical Univ./…
Trauma & Reconstruction Center, Southern TOHOKU General Hosp., …
Fukushima, Japan  Narutaka Katoh

1-10-O22-4

Examination of factors contributing to decline in walking ability in elderly
patients with proximal femur fractures… ……………………………………………… S233
Asago Medical Center, Hyogo, Japan  Ryowa Mineo

1-10-O22-5

Clinical results of osteosynthesis for displaced femoral neck fracture
in elderly patients… ……………………………………………………………………… S233
Higashiyamato Hosp., Tokyo, Japan  Motoki Abe－ 166 －

1-10-O22-6

Study of risk factors for contralateral fracture after proximal femoral fracture… … S234
Toyamaken Kouseiren Namerikawa Hosp., Toyama, Japan  Hiroshi Hayashi

Oral 23

Proximal femoral fractures in the elderly 3（10:30 ～ 11:30）
1-10-O23-1

Chair: H. Shirakata

Has fracture pattern of femoral trochanteric fracture changed during these
10 years? -3D-CT classification…………………………………………………………… S234
Nishinomiya Watanabe Hosp., Hyogo, Japan  Hiromasa Akino

1-10-O23-2

Clinical results of cemented or cementless bipolar hemiarthroplasty for femoral
neck fractures: A multicenter prospective cohort study……………………………… S235
Dokkyo Medical University Saitama Medical Center, Saitama, Japan  Tetsuya Jinno

1-10-O23-3

Utility of bipolar head arthroplasty using the minimally invasive surgery (MIS)
approach for femoral neck fractures in super elderly patients… …………………… S235
Iga City Hosp., Mie, Japan  Hironori Unno

1-10-O23-4

Consideration of one-stage bipolar hip arthroplasty and early mibilization offemoral trochanteric fractures in the elderly…………………………………………… S236
Aidu Chuo Hosp. / Fukushima Medical Univ., Trauma and Reconstructive Center, …
Fukushima, Japan  Masaru Nakano

1-10-O23-5

In Bipolar Hip Arthroplasty (BHA) for femoral neck fractures, does the CPP(Conjointed Tendon Preserving Posterior) approach reduce postoperative
dislocation compared to other approaches?… ………………………………………… S236
Baba Memorial Hosp., Osaka, Japan  Takuma Akitsukaze

1-10-O23-6

The clinical results of total hip arthroplasty for femoral neck fracture
at 1-year follow up in single center study… …………………………………………… S237
Saiseikai Yokohamashi Tobu Hosp., Kanagawa, Japan  Rei Hirose

1-10-O23-7

Comparison of functional prognosis between internal fixation andhemiarthroplasty for femoral neck fractures displaced by backbend 15 degrees
or more… …………………………………………………………………………………… S237
JCHO Yamanashi Hosp. Trauma Center/ …
Kosei Hosp. Orthop. Surg., Tokyo, Japan  Tetsuya Ohata

Noontime Lecture 8（12:00 ～ 13:00）
1-10-NL8-1

Chair: T. Noda

Wound handling and soft tissue reconstruction in upper extremity areas………… S512
Trauma Reconstruction Center, Univ. of Occupational and Environmental Health, …

1-10-NL8-2

Strategic wound closure in lower extremity fractures… …………………………… S513
Hyogo Prefectural Nishinomiya Hosp., Nishinomiya, Japan  Shimpei Kitada－ 167 －

Day 1
Room 10

Fukuoka, Japan  Yukichi Zenke

Sponsored Seminar Pathological Fractures 2024 for Trauma Specialists:
Management of pathological fractures and Collaboration with OrthoOncologists（14:30 ～ 16:30）

Chairs: H. Kawano
K. Matsui1-10-SS-1 ～ 3………………………………………………………………………………………………… S532
1-10-SS-1

Collaboration for pathological fractures between a cancer center and a trauma
centerAkashi Medical Center, Hyogo, Japan  Takahiro Waki

1-10-SS-2

Collaborative management of pathological fractures with University
Ortho-Oncologists
Nagasaki Medical Center, Nagasaki, Japan  Takashi Miyamoto

1-10-SS-3

Practical application and pitfalls of mega-prosthetic reconstruction for pathologicalfracturesDept. of Orthop. Surg., Teikyo Univ. School of Medicine, Tokyo, Japan  Jungo Imanishi

Oral 24

Acetabular fractures（16:10 ～ 16:45）
1-10-O24-1

Chair: Y. Kokubo

Anterior hip fracture dislocation treated by total hip arthroplasty; 2 case reports…… S238
Fukaya Red Cross Hosp., Saitama, Japan  Kenichi Nagano

1-10-O24-2

Three cases of intra-articular hip fractures treated with trochanteric flip
osteotomy… ………………………………………………………………………………… S238
Yokohama City Univ. Medical Center, Kanagawa, Japan  Masahiro Matsumoto

1-10-O24-3

Treatment options for acetabular fractures in the elderly…………………………… S239
Dept. of Orthop. Surg., Ishikawa Prefectural Central Hosp., Ishikawa, Japan  Kenji Fujita

1-10-O24-4

Clinical outcome and prognostic factors after acetabular fracture surgery……… S239
Okayama Univ. Graduate School of Medicine, Dentistry, and Pharmaceutical Science, …
Okayama, Japan  Shiro Fukuoka－ 168 －

Day1・Room 11（Exhibition Bldg. lF“Room 1”）
Young Surgeons Session

TE-RA-KO-YA（8:30 ～ 10:30）

Chair: S. Tsutsui

1-11-YS-1 ～ 15……………………………………………………………………………………………… S481
1-11-YS-1

Dept. of Orthop. Surg., Shizuoka Medical Center Hosp., Shizuoka, Japan  Yuko Irie

1-11-YS-2

Trauma Center, Shonan Kamakura General Hosp., Kanagawa, Japan  Takashi Ogawa

1-11-YS-3

Dept. of Orthop. Surg., Fukushima Medical Univ., Fukushima, Japan  Shunsuke Sato

1-11-YS-4

Trauma Center, Shonan Kamakura General Hosp., Kanagawa, Japan  Ryo Sato

1-11-YS-5

Osaka City General Hosp., Osaka, Japan  Keisuke Suzuki

1-11-YS-6

Juntendo Univ. Urayasu Hosp., Hand Surg. & Trauma Reconstruction Center, …
Chiba, Japan  Masao Suzuki

1-11-YS-7

Emergency and Critical Care Center, Fukushima Medical Univ. Hosp., …
Fukushima, Japan  Kotaro Sorimachi

1-11-YS-8

Trauma Center, Shonan Kamakura General Hosp., Kanagawa, Japan  Kanako Tsuihiji

1-11-YS-9

Trauma Reconstruction Center, Univ. of Occupational and Environmental Health, …
Fukuoka, Japan  Daishi Hamada

1-11-YS-10

Dept. of Orthop. Surg., Ogori Daiichi General Hosp., Yamaguchi, Japan  Kota Hayashi

1-11-YS-11

Dept. of Reconstructive Microsurgery and Traumatology, Hiroshima Univ.,
Hiroshima, Japan  Yuta Hayashi

1-11-YS-12

Div. of Orthop. Trauma Center, Sapporo Tokushukai Hosp., …
Hokkaido, Japan  Hirotada Matsui1-11-YS-13

Dept. of Orthop. Surg., Japanese Red Cross Kobe Hosp., …
Hyogo, Japan  Minami Matsuhashi

1-11-YS-14

Yokohama City Univ. Medical Center, Advanced Critical Care and Emergency Center,…
Kanagawa, Japan  Masahiro Matsumoto

1-11-YS-15
Oral 25

Juntendo Univ. Shizuoka Hosp., Shizuoka, Japan    Tomoko Wakejima

Reform of work styles, Disaster（10:50 ～ 11:40）
1-11-O25-1

Chair: K. Ichimura

The experience of 2024 Noto peninsula earthquake…………………………………… S240

1-11-O25-2

The need for a trauma surgical framework for early surgery of Femoral
trochanteric fracture… …………………………………………………………………… S240

Day 1
Room 10

Suzu General Hosp., Suzu, Japan  Yusuke Yoshimoto

Miyazaki Prefectural Nobeoka Hosp., Miyazaki, Japan  Kazuaki Ishihara
Day 1
Room 11－ 169 －

1-11-O25-3

Impact of physician work style reforms on the waiting period for surgery
for proximal femur fractures……………………………………………………………… S241
Hiroshima City Hiroshima Citizens Hosp., Hiroshima, Japan  Hiroaki Murakami

1-11-O25-4

Investigation of the effect of training with Trauma Vision on reducing
fluoroscopy time… ………………………………………………………………………… S241
Dept. of Orthop. Surg., Kagawa Univ., Kagawa, japan  Teppei Senda

1-11-O25-5

Overtime work in the treatment of open fracture… ………………………………… S242
Div. of Comprehensive Musculoskeletal Medicine, Niigata Univ. Graduate School of Medical and…
Dental Sciences, Niigata, Japan  Takuya Yoda

1-11-O25-6

Examination of tourniquet pressure setting using limb occlusion pressure
sensor. Regarding upper limb surgery cases…………………………………………… S242
Daiyukai General Hosp., Aichi, Japan  Hiroya Senda

Noontime Lecture 9（12:00 ～ 13:00）
1-11-NL9

Chair: T. Sawada

The first hip fracture center in Japan: Past efforts and future goals……………… S514
Akashi Medical Center, Hyogo, Japan  Takahiro Waki

Hands-on SeminarEnder nailing（14:30 ～ 16:30）

Chair: K. Ando

1-11-HS-1 ～ 2… …………………………………………………………………………………………… S533
1-11-HS-1

Kamitsuga General Hosp., Tochigi, Japan  Satoshi Takahata

1-11-HS-2

Dept. of Orthop. Surg., Showa Univ. Northern Yokohama Hosp., Yokohama, Japan / …
Dept. of Orthop. Surg., Showa Univ. School of Medicine, …
Tokyo, Japan  Masaya Yamaguchi

1-11-HS

Hands-on－ 170 －