Outline of the event
Conference name:

The 62nd Annual Meeting of the Japanese Pediatric Hip Research Society

Date

June 22nd,23rd / 2023

Venue

Chiba City Cultural Center Art Hall
2-5-1 Chuo, Chuo-ku, Chiba-shi, Chiba Central Twin Building No.2 3rd Floor,
Postal code 260-0013, Japan, TEL: 043-224-8211

Theme

With heartfelt attention to each and every patient

Main topic

Difficult Cases in Treatment

Symposium

Surgery for Developmental Dysplasia of the Hip (Complete Dislocation Cases)-Where the Success and Failure Divide-

Panel Discussion

Infant Hip Screening -Current Status and Future Prospects in Each RegionOrthotic Treatment for DDH -Timing and Application Conditions-

ChairmanTakashi Saisu (Director, Chiba Child & Adult Orthopaedic Clinic)

Participation fee

Foreign physicians and medical students: FreeSecretariat

Chiba Child & Adult Orthopaedic Clinic
Secretary-General: Yohei Tomaru
3-24-2 Oyumino Minami, Midori-ku, Chiba-shi, Chiba, Postal code 266-0033, Japan
E-mail: jphrs2023@ccaoc.jp

Call for Abstracts
Date: February 1, 2023 (Wednesday) - March 10, 2023 (Friday) (based on Japan standard time GMT+9hrs)
According to the abstract submission example below, please prepare a Microsoft Word file with, Title, Author, affiliation, andabstract (limited to 450 words), and send it as an attachment file to the following e-mail address ( jphrs2023@ccaoc.jp ). The
format of the abstract is not specified, so please feel free to create your own. Please indicate your preferred session(s), if any, among
the subjects, symposiums, and panel discussions.
Email address for abstract submissions
The 62nd Annual Meeting of the Japanese Society for Pediatric Hip Arthroplasty Secretariat
Yohei Tomaru
E-mail address: jphrs2023@ccaoc.jp

Submission example
Title
A case of femoroacetabular impingement due to double-headed femoral head treated by arthroscopic partial resection of thefemoral headAuthors
Takashi Saiisu 1, Makoto Kamegaya 1, Yohei Tomaru 1, Jun Kakizaki 2, Yasuhiro Oikawa 2, Rei Abe 2, Akitoshi Sakuma 3,Ayana Kitta 4
Affiliation
1 Chiba Child & Adult Orthopaedic Clinic, 2 Department of Orthopaedic Surgery, Chiba Children's Hospital, 3 Departmentof Orthopaedic Surgery, Chiba University
4 Department of Orthopaedic Surgery, Tokyo Women's Medical University Yachiyo Medical Center
Abstract
Introduction: Biconcave Perthes-like deformity, if left untreated, can cause impingement of the bone head and acetabulum,resulting in significant pain and limitation of range of motion. In this study, we report a case in which one of the two heads
was removed under a specular microscope, and the symptoms were successfully corrected without complications.
Case: A 14-year-old girl. Left developmental dysplasia of the hip joint was treated by open reduction at the age of 1.5 years.
At 6 years of age, [..partially omitted..].
The patient has been followed up to 3 years and 6 months postoperatively with no complications.
Discussion : Partial resection of the head is not an easy decision to make because of the risk of osteonecrosis and fracture of
the remaining head. The decision of the surgeon, who was at his technical peak as a surgeon, was fortunate to have produced
a good result, but it is hard to say anything about reproducibility.

Guest Speakers

Tae-Joon Cho, MD, PhD
Professor & Chief
Division of Paediatric Orthopaedics
Seoul National University Children's Hospital
Korea
President
Asia-Pacific Paediatric Orthopaedic Society

Chia Hsieh Chang, MD, PhD
Department of Pediatric Orthopedics
Bone and Joint Research Center
Chang Gung Memorial Hospital
Chang Gung University
TaiwanPresident
Taiwan Pediatric Orthopedic Society

Ting-Ming Wang, MD, PhD
Professor
Chief of the pediatric orthopedic surgery
Department of Orthopedic Surgery
National Taiwan University
TaiwanProgram at a glance
Day1

Day2

22ndJune

23rdJune
Poster walk

9:00
Chairperson

Reiko YAMAGUCHI

Ayana YAMANAKA Ayana KITTA

9:40
9:50
10:22

Conference Topic 3 LCPD
Chairperson Kazuharu TAKIKAWA

10:22
10:54

Free Paper Session 2Chairperson Jun KAKIZAKI

11:05

PanelBreak
12:00

Opening Ceremony

Takashi SAISU

12:05

Conference Topic 1

DDH

12:53
12:53

Chairperson Hiroshi KAMADA
Conference Topic 2
Paralytic Dislocation

13:25

Chairperson

13:40
14:12

Conference Topic 4 SCFE
Chairperson Satoshi SHINAGAWA

14:12
14:44

Free Paper Session 1
Chairperson Rei ABE

14:44

Panel Related Session

15:32

Chairperson

15:50

Break
Panel Discussion DDH Screening
Current Situation and Future Vision in Each Region

17:10

Chairperson

17:15

Invited Lecture 1

Masanori WAKO
Break

Orthotic treatment for DDH− timing of application and application conditions ‒12:05

Chairperson

12:15

Luncheon Case Discussion

12:55

Yuko SEGAWA

Chairperson

Yuta TSUKAGOSHI

General Meeting
13:00~13:20
Invited Lecture2 Chia Hsieh Chang
13:25
Guided Growth for Hip displacement in Cerebral Palsy
13:55
Chairperson Yasuhiro OIKAWA

13:55

Conference Topic5

14:27

Chairperson

14:30

Invited Lecture 3

Katsuaki TAIRA
Tae-Joon Cho

DDH Management of Those Too Old for Harness Treatment− Experience in Seoul

DDH Screening

Yuko SAKAMOTO

Discussion2

15:00

Chairperson

Keita OKADA
Break

15:10
16:10

Symposium Open Reduction for DDH− where the success or failure lies ‒Chairperson Akifusa WADA

Reiko MURAKAMI
Ting-Ming Wang

Hip osteotomies for residual hip dysplasia in adolescents and young adults

17:45

Chairperson

Yohei TOMARU

19:00

Reception party
Ocean Table CENTRAL PORT CHIBA

16:15
17:15
17:15
17:20

Special Lecture Shigeru MITANITanabe method ‒ Wide Exposure Method for DDHChairperson Takashi SAISU
Closing

Takashi SAISU

Table of Contents for Presentations
Day 1

June 22nd

12:00~12:05

ThursdayOpening

Takashi SAISU

12:05~12:53

Conference Topic 1 (DDH)

Chairperson Hiroshi KAMADA
M1-1

Developmental dysplasia of the hip in 5 years old children. Case report
Ikurou TAJIMA

M1-2

Iwate Prefectural Ofunato Hospital

A case of sequential one-stage combined procedure for treating bilateral DDH in a
5-year-girl(Is there a difference in outcome with traction duration?)
Noboru OIKAWA

M1-3

Saitama Children Medical Center

Developmental dysplasia of the hip with re-dislocation in cast after traction therapy
Maki KINUGASA

M1-4

Kobe children’s hospital

Dislocation after flexion abduction continuous traction ; A case report
Natsuko MATSUOKA

M1-5

Tokyo Metropolitan Children’s Medical Center

A case of avascular necrosis of the femoral head treated by surgical methods indevelopmental dysplasia of the hip.
Yoichi NAKATSUKA

M1-6― Over 20 years follow-up –Kagawa Rehabilitation Center

Two DDH cases who received closed reduction at the age of 4 years were followed
more than 10 years.
Shigeo SUZUKI

Mizuno Memorial Hospital12:53~13:25

Conference Topic 2 (Paralytic Dislocation of the hip)

Chairperson Masanori WAKO
M2-1

A case of hip subluxation due to sequelae of septic arthritis and cerebral infarction
Azusa YONEDA

M2-2

Nara Medical University

A case report: a case of struggling to treat developmental dysplasia of the right hip (paralytic dislocation)

Soutarou IZUMI
M2-3

Hiroshima Prefectural Rehabilitation Center

A case of subtrochanteric femoral fracture with paralytic hip dislocation underwent open
reduction and correction / internal fixation at the fracture site

Ken SUGITA
M2-4

Saga Handicapped Hospital

8 cases of spastic subluxation and dislocation of the hip requiring additional surgery after soft tissue release

Tetsuya UMEZAKI

Miyazaki Pref. center for Disabled Children

13:25~13:40

Break

13:40~14:12

Conference Topic SCFE

Chairperson Satoshi SHINAGAWA
M4-1

A caseslipped capital femoral epiphysis?

Yasuhiko KAWAGUCHI
M4-2

The Jikei University DAISAN Hospital

A case of severe slipped capital femoral epiphysis with residual limitation of range of motion after
intertrochanteric flexion osteotomy

Hirotaka OISHI
M4-3

A case of re-slipped capital femoral epiphysis after implant removal.
Keita OKADA

M4-4

Hachinohe City Hospital

The University of Tokyo Hospital

Screw loosening after in situ pinning in slipped capital femoral epiphysis
Hirakazu MURAYAMANara Medical University

14:12~14:44

Free Paper Session 1Chairperson Rei ABE
G1-1

An effect on sacral epidural anesthesia for children with cerebral palsy
Saki SHIRAISHI

G1-2

Effects of peri-hip orthopedic selective spasticity control surgery on pelvic tilt
Toru IWAMA

G1-3

Nagasaki University

Akebono Medical and Welfare Center

Natural course of acetabular dysplasia with large acetabular angle
Kensuke OTSUBO

G1-4

Shizuoka Children’s Hospital

Evaluation of hip development following closed or open reduction of developmental
dysplasia of hip in children after walking age
Daisuke TAMURA

14:44~15:32

Osaka Women’s and Children’s Hospital

Panel Related Session

DDH Screening

Chairperson Yuko SAKAMOTO
R1-1

Short term outcome of ultrasound screening for developmental dysplasia of the hip in our hospital

Reiko YAMAGUCHI
R1-2

Tokyo-Kita Medical Center

Mass screening for DDH in Matsudo City
Yoshiyuki SHINADA

R1-3

University of the Ryukyu Hospital

The significance of the thigh skin crease in infant hip joint screening
Wataru KOIZUMI

R1-5

Matsudo City General Hospital

The present issues of hip screening at the health check-up in Okinawa prefectureTakeshi KAMIYA

R1-4

Kitachiba Spine & Sports Clinic

Hip screening using ultrasound for newborn at our hospital
Yuujirou KURAMITSU

R1-6-50years experience and future-

Tokyo Women's Medical University

Past, present, and future of DDH screening in Oita prefecture
Rei ABE

Beppu Developmental Medicine and Habilitation Center15:32~15:50
15:50~17:10

BreakPanel Discussion

DDH Screening

Chairperson Reiko MURAKAMI
D1-1

Screening system for DDH in Chiba City
Yasuhiro OIKAWA

D1-2

Chiba Children’s Hospital

Current status of developmental dysplasia of the hip screening system in HamamatsuCity through reconstruction
Hiroki FURUHASHI

D1-3

Hamamatsu Univ. Sch. of Med

DDH Screening - Past and Future in Osaka Prefecture Keisuke NAKAGAWA

D1-4

Changes in hip joint examination of infants

Yuka KITAGAWA
D1-5-What made the patients to get hip exam?-

Iwate Prefectural Rehabilitation and Nursery Center for Disabled Children

New DDH screening system in Ehime prefecture
Keisuke SANO

D1-6

Osaka City General Hospital

Ehime Rehabilitation Center for Children

Implementation of the DDH screening System in Society and Issues Regarding Accuracy Management

Yoshitaka EGUCHINational Center for Child Health and Development17:15~17:45 Invited Lecture
Chairperson Yohei TOMARU
Hip osteotomies for residual hip dysplasia in adolescents and young adults
Ting-Ming Wang, MD, PhD

National Taiwan University HospitalDay 2June 23rdFriday

9:00~9:40 Poster Session 1
Chairperson Reiko YAMAGUCHI
P1-1

Bilateral DDH caused nosocomially by inappropriate swaddling
Yoshinobu OKA

P1-2

Kyoto Prefectural University of Medicine

A case of developmental dysplasia of the hip performed femoral and periacetabularosteotomy for avascular necrosis after overhead traction
Mari TAKIMOTO

P1-3

Kyoto Prefectural University of MedicineArthroscopic mobilization for hip arthrofibrosis in hip osteotomy patient. A case report.
Hyonmin CHOE

P1-4

Yokohama City University

Bilateral developmental dysplasia of the hip that are difficult to reduction withconservative therapy
Mamiko KUNISHIMA

P1-5

Fukushima Rehabilitation CenterTranstrochanteric rotational osteotomy for collapsed femoral head following pathologic
femoral neck fracture induced by solitary bone cyst
Ryosuke YAMAGUCHI

P1-6

A case of severe AVN after the Pavlik harness treatment that treated multiple surgeries
Keisuke SANO

P1-7

Kyushu University

Ehime Rehabilitation Center for Children

A case of high dislocation of the left hip joint with difficult to reduction by Pavlik Harness
after horizontal traction
Takuya OGAWA

P1-8

Hokkaido University

A multioperated DDH case resulted in OA in her youth
Katsuya IBAYASHI

Kyoritsu Hospital, Obihiro city

9:00~9:40 Poster Session 2
Chairperson Ayana YAMANAKA
P2-1

A case of bilateral hip dislocation with arthrogryposis multiplex congenita
Toru IMAI

P2-2

Aichi Children’s Health Medical Center

A case of sequelae of septic arthritis of the hipMyongsu HAP2-3

Nagoya City UniversityA case of exacerbation of planovalgus foot deformity after femoral derotational
osteotomy
Yukie METOKI

P2-4

Kitasato University

A case of idiopathic congenital Coxa vara treated by bilateral femoral valgus
osteotomies
Shigemasa KOMATSU

P2-5

Miyagi Children's Hospital

A case of neoplasm affecting the hip joint of a 6-year-old male
Masayuki MORISHITA

P2-6

Kobe Children’s Hospital

A case of Ehlers-Danlos syndrome treated with femoral varus osteotomy for bilateral
hip subluxation
Shinji ASAI

P2-7Gunma Children's Medical Center

A surgical case of hip dislocation following minor trauma with neurofibromatosis type1 after six weeks
Ryota TACHIBANA

P2-8

Shizuoka Children's Hospital

5-year outcome of ischial tuberosity avulsion fracture treated with the suture bridge
technique: a case report
Tomohiro INOUE

Okayama University9:00~9:40 Poster Session 3Chairperson Ayana KITTA
P3-1

A case of Perthes disease associated with multiple epiphyseal dysplasia requiring
additional treatment after bone growth.
Akihiro KAWANO

P3-2

Miyazaki Prefecture Center for Disabled Children

A case of leg length discrepancy treated by PSPD with LCPD after FVO
Satoshi SHINAGAWA

P3-3

Gunma University

Relationship between hypertrophy of the femoral head cartilage and femoral head
deformity in Legg-Calvé-Perthes disease
Hidenao TANAKA

P3-4

Kyushu University

A case of adolescent dancer of solitary bone cyst on femoral neck treated withcannulated hydroxyapatite pin
Yuko SAKAMOTO

P3-5

A case of severe sequelae of infantile septic arthritis of the hip observed natural history
Reiko MURAKAMI

P3-6

Niigata University

Screening for developmental dysplasia of the hip in Tottori University Hospital
Shinpei ENOKIDA

P3-7

Juntendo University Nerima Hospital

Tottori University

Recommendation of a time lag second screening with ultrasound after primary
screening at birth of JOA/JPOA DDH check-up list. A new DDH screening model in
Fukui prefecture, Japan.
Atsushi MURATA

P3-8

Fukui Prefectural Rehabilitation Center for Handicapped Children

Current Status and Issues of Infant Hip Screening in our hospital
Ken SUGITA

Saga Handicapped Hospital9:50~10:22 Conference Topic 3 LCPD
Chairperson Kazuharu TAKIKAWA
M3-1

A case of femoral head collapse in the patient with Legg-Carve-Perthes disease
Daisuke KOBAYASHI

M3-2

Kobe Children’s Hospital

How to manage several problems of non-weight-bearing treatment in long-term
hospitalization for Perthes disease
Chiharu TANAKA

M3-3

Asahigawasou Rehabilitation and Medical Center

A case report of bilateral Perthes’ disease boy who has been stayed in our hospital forvery long time
Kiyoshi AOKI

M3-4

Asahigawasou Rehabilitation and Medical CenterA clinical study of Meyer's disease with Perthes disease
Yoshitsugu FUKUDA

National Center for Child Health and Development

10:22~10:54 Free Paper Session 2Chairperson Jun KAKIZAKI
G2-1

The anatomical relationship between the acetabulum and the femoral head in patientswith developmental dysplasia of the hip who underwent open reduction
Takashi KOURA

G2-2

Okayama University

The experiences of extensive anterolateral approach for open reduction of threeneglected childhood DDHs
Atsushi MURATA

G2-3

Short-term results of open reduction for developing dysplasia of the hip
Kan SASAKI

G2-4

Fukui Prefectural Rehabilitation Center for Handicapped Children

Yamagata Saisei Hospital

A case of 5-year-old DDH requiring early postoperative reoperation.
Masanori WAKO

University of Yamanashi

11:05~12:05 Panel Discussion 2

Orthotic treatment for DDH

Chairperson Yuko SEGAWA
D2-1

Nation wide survey of early diagnosis and early treatment for DDH (dislocation /subluxation) in Japan.
Kotaro HOSHINO

D2-2

Yamane Hospital

Timing of the diagnosis and treatment of developmental dysplasia of the hip in infants in Shiga.
Masako TSUKANAKA

D2-3

Department of Pediatric Orthopedics, Shiga Medical Center for Children

Does timing of Pavlik harness initiation affect the incidence of avascular necrosis?
Tomoyuki NAKAMURA

D2-4Fukuoka Children’s Hospital

DDH treatment in the Nagoya University Hospitals and affiliated hospitals - the pastand future perspective for the harness therapy –Hiroshi KITOH

Aichi Children’s Health and Medical Center

12:15~12:55 Luncheon Case Discussion
Chairperson Yuta TSUKAGOSHI
L1-1

A case of pelvic osteotomy performed in the anterior and posterior directions for
abdominal wall closure in cloacal exstrophy
Masatoshi OBA

L1-2

Kanagawa Children's Medical Center

A case of right hip dislocation associated with ipsilateral lower limb hypoplasia
Saori MATSUYAMA

L1-3

Two cases of recurrent deformity at the proximal femur associated with severe fibrous dysplasia

Yuko SEGAWA
L1-4

Aichi Children’s Health and Medical CenterTokyo Medical and Dental University

A hip disarticulation prosthesis in infancy
Natsue YAMASAKI

13:00~13:20

Aichi Blue Bird Medical Rehabilitation Center for Children

General Meeting13:25~13:55 Invited Lecture 2
Chairperson Yasuhiro OIKAWA
Guided Growth for Hip displacement in Cerebral Palsy
Chia Hsieh Chang MD, PhD Chang Gung Memorial Hospital, Taiwan
13:55~14:27 Conference Topic 5
Chairperson Katsuaki TAIRA
M5-1

Two cases of coxa vara with fibrous dysplasia
Yumiko KIMURA

M5-2

Tokyo Metropolitan Children’s Medical Center

An effect on sacral epidural anesthesia for children with cerebral palsy
Saki SHIRAISHI

M5-3

Nagasaki University

A case of Fukuyama congenital muscular dystrophy with severe flexion contracture ofthe hips
Yuta TSUKAGOSHI

M5-4

University of Tsukuba

Experience of３cases in teenage undergoing total hip arthroplasty
Satoshi IIDA

Matsudo City General Hospital

14:30~15:00 Invited Lecture 3
Chairperson Keita OKADA
DDH Management of Those Too Old for Harness Treatment - Experience in SeoulTae-Joon Cho, MD, PhD
15:05~16:10 Symposium

Seoul National University Children’s HospitalOpen Reduction

Chairperson Akifusa WADA
S1-1

Open Reduction for Developmental Dysplasia of the Hip－Surgical Procedure and Outcomes of Extensive Anterolateral Approach－Naoya TAKI

S1-2

Jichi Children’s Medical Center

Combined Open reduction and Salter Innominate Osteotomy forDevelopmental Dysplasia of the Hip
Ryosuke SAKATA

Kobe Children’s Hospital

S1-3

Indication and pitfall of combined surgery including open reduction in patients withDDH
Tomoyuki NAKAMURA

S1-4

Fukuoka Children’s Hospital

The points of the open reduction technique for developmental dysplasia of the hip withcomplete dislocation as I perceive them.
Jun KAKIZAKI

Chiba Children’s Hospital

16:15~17:15 Special Lecture
Chairperson Takashi SAISU
Tanabe method – Wide Exposure Method for DDHShigeru MITANI

17:15~17:20
Takashi SAISU

Closing

Kawasaki Medical School

Access
Chiba City Cultural Center Art Hall

(千葉市⽂化センター アートホール)

2-5-1 Chuo, Chuo-ku, Chiba-shi, Chiba Central Twin Building No.2 3rd Floor,
Postal code 260-0013, Japan, TEL: 043-224-8211●From the east exit of JR "Chiba" Station:
On foot: approximately 10 minutes
By bus: Take the Keisei bus (Route number: Chiba 01, Chiba 02, Chiba 05, Chiba 06, Chiba 07) and get off at "Chiba Bank Chuo
Shiten-mae" bus stop, then walk for about 1 minute.
●
From Keisei "Chiba Chuo" Station:
On foot: approximately 10 minutes●
When using Chiba Urban Monorail:
Get off at 葭川公園駅 "Yoshikawakoen" station and walk for about 3 minutes.
●
When using a car:Approximately 20 minutes from the 穴川 “Anagawa Interchange” on the Keiyo Expressway.