Friday, April 10th (Day 1)

Day 2

Opening Remarks The Meeting President of the 18th Congress of AFJO à Aomori

9:20〜9:30

Room1.

会長: Yasuyuki ISHIBASHI (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine President of AFJO 2026)

Oral Session 1. Knee

Friday, April 10th (Day 1)

9:30〜10:40

Room1.

Chair: Luc KERBOULL (Secrétariat médical et ConsultationsEspace Médical Vauban); Yuka KIMURA (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine)

Speaker: O1-1
How do knee implants compare with HTO past the 4th decade when performed in osteoarthritis secondary to ACL rupture in patients younger than 40 years
Philippe HERNIGOU (University Paris East); O1-2
The suture enable area in lateral meniscus by inside-out method using curved needle.
Yoshiki OKAZAKI (Kagawa Rosai Hospital); O1-3
Predicting arthroscopic posoperative stability scores after medial meniscu posterior root repair using preoperative open magnetic resonance imaging findings
Masanori TAMURA (Tsuyama Chuo Hospital); O1-4
Mid-term outcomes after double level osteotomy in patients with severe varus knee osteoarthritis.
Shintaro ONISHI (Hyogo Medical University); O1-5
Short-term clinical outcomes comparison between single- and triple-bundle PCL reconstruction
Tomomasa NAKAMURA (Institute of Science Tokyo); O1-6
Unrestricted kinematic alignment for Asian apex-distal knees: proposal of JLO-modified KA with component alignment analysis
Tsutomu MAEDA (Shiga General Hospital); O1-7
Fibular head location relative to the tibia and lateral collateral ligament running angle
Hiroki GOTOU (Iwate Prefectural Iwai Hospital); O1-8
Autogenous morselized bone grafting for large medial tibial defects in total knee arthroplasty: a long-term follow-up study
Takehiko SUGITA (Tohoku Orthopaedic and Dental Clinic)

Symposium 1. Shoulder Instability

Friday, April 10th (Day 1)

10:50〜11:50

Room1.

Chair: Shinji IMAI (Department of Orthopaedic Surgery, Shiga University of Medical Science); Naoko MIZUNO (Department of Orthopaedic Surgery, Toyonaka Municipal Hospital)

Speaker: SYM1-1
Selective augmentation with rotator interval closure and Hill–Sachs remplissage in arthroscopic Bankart repair for traumatic anterior shoulder instability
Hiroko UEKI (Tokyo Sports and Orthopaedic Clinic); SYM1-2
Arthroscopic management of recurrent anterior shoulder instability
— From bankart repair to the latarjet procedure —
Eiko HASHIMOTO (Chiba University); SYM1-3
From stability to performance: Optimizing coracoid transfer in collision athletes
Takehito HIROSE (Department of Orthopaedic Surgery, The University of Osaka); SYM1-4
TBD (tentative)
Takaakira KISHI (Paris Lilas Clinic)

Special Lecture

Friday, April 10th (Day 1)

14:30〜15:30

Room1.

Chair: Seiji OHTORI (Chiba University)

Speaker: SL-1
I don't think you need spinal surgery, challenges and alternatives
Jean-Marc VITAL (University of Bordeaux / Member of the French National Academy of Medicine)

Oral Session 5. Spine2

Friday, April 10th (Day 1)

15:40〜16:40

Room1.

Chair: Kei MIYAMOTO (Gifu Munincipal Hospital Orthopaedic Surgery); Kanji MORI (Shiga University of Medical Science Department of Spine and Joint Reconstruction)

Speaker: O5-1
Using Normative Proximal Junctionnal Angles to Define Proximal Junctionnal Kyphosis: Does It Make Any Difference?
Sébastien PESENTI (Timone Enfants); O5-2
Age and In-brace Cobb Angle Predict Brace Failure in Adolescent Idiopathic Scoliosis
Shinji SASAO (Shinshu University Hospital); O5-3
Accuracy of cervical pedicle screw placement with robotic guidance system
Yuki YAMAMOTO (Osaka Medical and Pharmaceutical University); O5-4
Markerless 3D Surface–CT Registration for Augmented Reality-Based Intraoperative Guidance in OLIF51®
Ruhan HOSSAIN (Chiba University); O5-5
Benefits of using a navigation system for UBE/BESS
Shinichiro TAKAO (Okayama Medical Center); O5-6
Decompression vs. Fusion for L5 Radiculopathy due to L5/S1 Foraminal Stenosis: Comparative Outcomes Using Tubular Retractor Systems.
Takeshi OKI (Yuki Hospital); O5-7
Spinal sagittal malalignment is associated with body height loss after 1 year in osteoporosis patients
Masayuki MIYAGI (Kitasato University, School of Medicine)

Symposium 2. Patellofemoral instability

Friday, April 10th (Day 1)

16:50〜18:00

Room1.

Chair: Shuhei OTSUKI (Department of Orthopedic Surgery, Osaka Medical and Pharmaceutical University); Nicolas PUJOL (Department of Orthopaedic Surgery and Traumatology, Centre Hospitalier de Versailles)

Speaker: SYM2-1
Surgical strategy after medial patellofemoral ligament reconstruction for lateral patellar instability
Yuka KIMURA (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine); SYM2-2
Trochleoplasty in major dysplasia: surgical principles
Nicolas PUJOL (Department of Orthopaedic Surgery and Traumatology, Centre Hospitalier de Versailles); SYM2-3
Medio-antero-distal tibial tubercle transfer as a comprehensive strategy for multifactorial patellofemoral instability
Munehiro OGAWA (Department of Sports Medicine, Nara Medical University); SYM2-4
Habitual Patellar Dislocation: Pathomechanics and Implications for Surgical Strategy
Satomi ABE (Department of Orthopaedic Surgery, Asahikawa Medical University); SYM2-5
Pathgenesis and treatment of cartilage injury and osteoarthritis secondary to patellar instability
Mitsuaki KUBOTA (Juntendo University)

Oral Session 2. Hand, trauma, tumor

Friday, April 10th (Day 1)

9:30〜10:40

Room2.

Chair: Akihiko MATSUMINE (Department of Orthopaedics and Rehabilitation Medicine, University of Fukui); Hideo HASEGAWA (Haségawa Orthopedic Clinic)

Speaker: O2-1
Treatment of Carpal Scaphoid Nonunions by Arthroscopic Grafting : How can we optimize the surgical technique ?
Michel LEVADOUX (Hopital privé Toulon Hyeres Clinique St Roch); O2-2
STT Arthritis partial arthroscopic resection of the distal scaphoïde technique and results
Michel LEVADOUX (Hopital privé Toulon Hyeres Clinique St Roch); O2-3
Arthroscopic Partial Trapezium Resection and Distraction Pinning for the Treatment of CMC Arthritis
Michel LEVADOUX (Hopital privé Toulon Hyeres Clinique St Roch); O2-4
Compartment Syndrome of the Middle Finger Caused by Habu Snakebite Requiring Emergency Fasciotomy: A Case Report
Daiki WATANABE (Okinawa Hokubu Hospital); O2-5
Thumb Carpometacarpal Joint Arthroplasty in Japanese Patients: An Anatomical Study Toward Implant Introduction
Hideo HASEGAWA (Haségawa Orthopedic Clinic); O2-6
Factors on admission of Intraoperative Blood Loss in Pelvic Ring Fractures: Comparison of Statistical and Clinically Representative Models
Kentaro SATO (St. Marianna University School of Medicine); O2-7
Megaprosthetic Reconstruction for Nonunion after Internal Fixation of a Femoral Shaft Fracture Associated with a Vascular Malformation: A Case Report
Takafumi SAIKA (Osaka Medical and Pharmaceutical University); O2-8
Predictive model for distant metastasis in high-grade soft tissue sarcoma using serum LDH level and tumor size: development and validation
Tatsuro SARUGA (Department of Orthopaedics and Rehabilitation Medicine, Hirosaki University Graduate School of Medicine)

Oral Session 3. Spine 1

Friday, April 10th (Day 1)

10:45〜11:55

Room2.

Chair: Mason ALNOURI (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine); Mitsuru TAKEMOTO (Kyoto Municipal Hospital)

Speaker: O3-1
Perioperative safety of lumbar decompression surgery performed under continuous low-dose aspirin administration.
Hiromitsu TAKAOKA (New Tokyo Hospital); O3-2
Clinical outcome of surgical management of mild cervical compressive myelopathy based on minimum clinically important difference
Takashi FUJISHIRO (Osaka Medical and Pharmaceutical University); O3-3
Assessment of Perioperative Nutritional Status in Spinal Surgery Patients Using Prealbumin
Masahiro IINUMA (St. Marianna University Yokohama Seibu Hospital, Yokohama, Kanagawa, Japan); O3-4
Prediction of Neurological Symptom Onset in Patients with Spinal Bone Metastases Using Diagnostic Imaging Data
Shuntaro YASUNARI (Graduate School of Science and Engineering, Chiba University); O3-5
Improvement and Accuracy Evaluation of a Nerve Root Region Segmentation Method for MRI Diffusion Tensor Images of Lumbar Spine Disease Using Deep Learning
Shuzo TANAKA (Faculty of Engineering, Chiba University); O3-6
Dural Canal Pulsation Analysis Using a Dural Canal Simulation Phantom
Haruki SUGA (Chiba University); O3-7
Clinical and Sagittal Alignment Features of Inflammatory Back Pain in Spondyloarthritis Compared with Lumbar Disc Herniation
Hiroshi TAKAHASHI (University of Tsukuba); O3-8
Relationship between neurological recovery in spinal cord injury patients and liver function assessment using the liver-to-spleen ratio on CT images - A single-center case-control study
Kousuke NITTA (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine)

Lancheon Seminar 1. (Medacta)

Friday, April 10th (Day 1)

12:10〜13:10

Room2.

Chair: Toru NISHIWAKI (Sanno Hospital Hip Joint Minimally Invasive Treatment Center)

Speaker: LS1-1
Ten years of safe use of a shortened cemented Charnley-Kerboull stem
Luc KERBOULL (Secrétariat médical et Consultations Espace Médical Vauban); LS1-2
Anterior Minimally Invasive Surgery in Hip Replacement: Lessons from France and Their Application in Japan
Masashi FUJII (Department of Orthopedic Surgery, Akita City Hospital)

Oral Session 4. Foot and ankle

Friday, April 10th (Day 1)

14:30〜15:30

Room2.

Chair: Yasuhito TANAKA (Social Medical Corporation Ishinkai Yao General Hospital Foot Disease Center); Hideji KURA (Hitsujigaoka Hospital)

Speaker: O4-1
Development and Accuracy Verification of Automatic Hallux Valgus Angle Measurement System Using External Photographs and Artificial Intelligence
Hayate MIZUNO (Division of Fundamental Engineering, Graduate School of Science and Engineering, Chiba University); O4-2
Long-term Outcomes Over Five Years of Total Ankle Arthroplasty with an Artificial Talus（CTAA）
Mitsui HIROYUKI (St.Marianna University School of Medicine); O4-3
Evaluation of the location of the weight-bearing line on the ankle in varus ankle osteoarthritis using weight-bearing long-leg anteroposterior view: a retrospective clinical study
Yuki UENO (Ishinkai Yao Hospital); O4-4
Electrophysiological Evaluation and Surgical Decision-Making in Recurrent Idiopathic Clubfoot Following the Ponseti Method
Chika MIZUNO (Miyagi Children’s Hospital); O4-5
Three-Dimensional Bone Morphological analysis for Jones Fractures using Statistical Shape Modeling
Takuma MIYAMOTO (Nara Medical University); O4-6
Postural stability in patients with bilateral hallux valgus—Does the comorbid hammer toe affect stability?
Ken TANAKA (Osaka Medical and Pharmaceutical University); O4-7
The Relationship Between the Sagittal Fusion Angle of the first TMT Joint and Hallux Valgus Recurrence following Modified Lapidus Procedure
Yinghao LI (Nara Medical University)

Oral Session 6. Hip 1

Friday, April 10th (Day 1)

15:40〜16:35

Room2.

Chair: Hirotsugu OHASHI (Department of Orthopaedic Surgery, Osaka Saiseikai Nakatsu Hospital); Toshihisa KAJIWARA (Totsuka Kyoritsu Izumiko Hospital Arthroplasty Center)

Speaker: O6-2
Robotic-assisted total hip arthroplasty for severe acetabular dysplasia: Ensuring implant accuracy while reducing surgeon burden
Toshihisa KAJIWARA (Totsuka Kyoritsu Izumino Hospital Arthroplasty Center); O6-3
Closed reduction of large head dual mobility hip-dislocation and strategy for revision if failure: A rare but challenging problem: 214 cases during 30 years.
Philippe HERNIGOU (University Paris East); O6-4
Accuracy of the acetabular cup angle using a novel pinless augmented reality-based portable navigation system during total hip arthroplasty in the supine position
Hiroaki KURISHIMA (Japanese Red Cross Sendai Hospital); O6-5
Spinal alignment changes in patients who underwent total hip arthroplasty after lumbar fusion
Takashi TOYODA (Kansai Medical University); O6-6
How is lumbar fusion associated with compensatory hip motion after THA?
Hiroyuki TOKUYASU (Kyoto City Hospital); O6-7
Cemented dual mobility cup in primary and revision total hip arthroplasty: Clinical and radiographic outcome
Yonu KIM (Kyoto City Hospital)

Oral Session 7. Hip 2

Friday, April 10th (Day 1)

16:40〜17:40

Room2.

Chair: Kenichi OE (Department of Orthopaedic Surgery, Kansai Medical University); Yuji YAMAMOTO (Department of Orthopaedic Surgery, Hakodate Municipal Hospital)

Speaker: O7-1
Condition changes before and after the coronavirus disease 2019 pandemic in adolescent athletes and development of a non-contact medical checkup application
Hiroaki KIJIMA (Akita University); O7-2
Efficacy of continuous local antibiotics perfusion in second debridement for periprosthetic joint infection after initial DAIR failure: A retrospective comparative study
Makoto KITADE (University of Fukui Hospital); O7-3
Comparison of postoperative outcomes between simultaneous bilateral THA and unilateral THA using the AMIS technique
Takashi ISHIDA (Saiseikai Yokohamashi Nanbu Hospital); O7-4
When the gap matters most: Clinical impact of collar-calcar gap using collared fully hydroxyapatite coated stem in patients with Dorr type C
Jessiah Aura M. NAVARRO (Funabashi Orthopedic Hospital); O7-5
Tranexamic acid reduces transfusion requirements after pelvic osteotomy: A nationwide propensity score–matched analysis
Hidetatsu TANAKA (Tohoku University Graduate School of Medicine); O7-6
Improvement in the diagnosis of prosthetic joint infection using periprosthetic culture in blood culture bottles
Tsubasa ISHIKAWA (Showa Medical University Fujigaoka Hospital); O7-7
Could be 'French paradox' cementing technique applied to a collarless double-tapered polished cemented stem?
Satoshi IIDA (Matsudo Kamihongo Orthopedic Clinic)

Saturday, April 11th (Day 2)

Day 1

Memorial Session in Honor of Professor Akira Kobayashi

Saturday, April 11th (Day 2)

9:10〜9:30

Room1.

Chair: Tadayuki HOSHI (Komatsu Orthopaedic Clinic)

Speaker: MS
In Memory of Dr. Akira Kobayashi (1930 – 2025): A master surgeon and great leader of the Société franco-japonaise d'Orthopédie
Yasuyuki ISHIBASHI (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine President of AFJO 2026)

Oral Session 8. Fellowship report in France

Saturday, April 11th (Day 2)

9:40〜10:20

Room1.

Chair: Kiyoshi AOKI (Department of Orthopaedic Surgery. Asahigawasou Rehabilitation and Medical Center (Okayama)); Tsutomu MAEDA (Department of Orthopaedic Surgery, Shiga General Hospital Knee & Sports Surgery Center)

Speaker: O8-1
Shoulder surgery training in Lyon, France: A comparison with Germany
Katsumasa NAKAZAWA (Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine); O8-2
Clinical practice and culture in France
Ryoko UESATO (Okinawa Prefectural Nanbu Medical Center & Children’s Medical Center Department of Orthopaedic Surgery); O8-3
Hip surgery training in SOFJO exchange fellowship program
Shigeo HAGIWARA (Toho University Sakura Medical Center)

Symposium 3. Spine Adult Spine Deformity

Saturday, April 11th (Day 2)

9:35〜10:35

Room2.

Chair: Jean-Marc VITAL; Sumihisa ORITA (Center for Frontier Medical Engineering, Chiba University)

Speaker: SYM3-1
The Importance of Distal Lumbar Lordosis Restoration, a French Concept, and the Role of Lateral-Position ALIF in Degenerative Spinal Deformity
Mitsuru TAKEMOTO (Kyoto City Hospital); SYM3-2
Parkinson's disease, neurogenic scoliosis　(tentative)
Kei WATANABE (Kameda Daiichi Hospital); SYM3-3
Adult spinal deformity associated with osteoporosis and vertebral fractures　(tentative)
Kei MIYAMOTO (Gifu Municipal Hospital); SYM3-4
Improvement in Spinal Sagittal Alignment after Short-segment Lumbar Fusion in Patients with Lumbar Spinal Stenosis Concomitant Adult Spinal Deformity.
Yohei SANO (Department of Orthopedic Surgery, Osaka Medical and Pharmaceutical University)

Oral Session 9. Shoulder

Saturday, April 11th (Day 2)

10:40〜11:30

Room2.

Chair: Kishi TAKAAKIRA (Paris Lilas Clinic); Naoya NISHINAKA (Showa Medical University)

Speaker: O9-1
Subscapularis Repair Enhances Internal Rotation in French but Not Japanese Patients After a Short-typed Curved Stem Reverse Shoulder Arthroplasty
Yoshihio HIRAKAWA (Ishikiriseiki hospital); O9-2
Three-Dimensional Scapular Kinematics During Shoulder Abduction After Reverse Total Shoulder Arthroplasty
Itaru KAWASHIMA (Yachiyo Hospital); O9-3
Effect of brachial plexus block enhanced with steroids on postoperative nocturnal pain in ARCR
Yuki KOTANI (Toyonaka Municipal Hospital); O9-4
A Case of Reconstruction Using Fibula Graft for Proximal Humerus Bone Defect Following RSA Surgery
Umeda KOHEI (Shiga University of Medical Science Hospital); O9-5
Postoperative Outcomes and Complications of Arthroscopic Bankart and Bristow Procedure
Naoya NISHINAKA (Showa Medical University); O9-6
Clinical Outcomes of Arthroscopic-Assisted Reduction and Internal Fixation Using the Double Anchor Footprint Fixation (DAFF) Technique for Glenoid Fractures
Junta KIKUCHI (Toyonaka Municipal Hospital)

Lancheon Seminar 2. (Smith and Nephew)

Saturday, April 11th (Day 2)

12:20〜13:20

Room2.

Chair: Daisuke ARAKI (Hyogo Rehabilitation Center Hospital)

Speaker: LS-2
The formal EU-US meniscus rehabilitation consensus. An ESSKA-AOSSM-AASPT initiative. Part I – Rehabilitation management after meniscus surgery (meniscectomy, repair, reconstruction)
Nicolas PUJOL (Department of Orthopaedic Surgery and Traumatology, Centre Hospitalier de Versailles)

Poster Session 1. Spine 1

Saturday, April 11th (Day 2)

11:30〜11:45

Foyer, 2F

Chair: Yoshiro NITOBE (Hakodate Municipal Hospital)

Speaker: P1-1
The Factors affecting and characteristics of residual neuropathic pain after cervical laminoplasty for myelopathy
Shun NOKARIYA (Department of Orthopaedic Surgery, Kitasato University, School of Medicine); P1-2
Two Cases of Cervical Spondylotic Radiculopathy with Drop Fingers
Risako YAMAMOTO (JA Yoshida General Hospital); P1-3
Dynamic Chest Radiography for Investigating Respiratory Failure After Anterior Cervical Decompression and Fusion: A Case Report
Hideki SAITOU (Shiga University of Medical Science)

Poster Session 2. Spine 2

Saturday, April 11th (Day 2)

11:45〜12:05

Foyer, 2F

Chair: On TAKEDA (Aomori Prefectual Central Hospital)

Speaker: P2-1
Osteolytic tumor of the C4 in an adolescent patient: A case report
Kanji MORI (Shiga University of Medical Science); P2-2
Does segmental cervical instability drive the lordosis loss after laminoplasty in patients with cervical spondylotic myelopathy?
Takuya OBO (Osaka Medical and Pharmaceutical University); P2-3
Pediatric Magerl screws require a more lateral trajectory reflecting age-related atlantoaxial morphology
Yujiro TAKESHITA (Yokohama Rosai Hospital); P2-4
Lumbar interbody fusion using a robot assisted spine surgery: A comparative study of two surgical techniques performed by the same surgeon
Shinichiro TAKAO (Okayama Medical Center)

Poster Session 3. Hip

Saturday, April 11th (Day 2)

11:30〜11:55

Foyer, 2F

Chair: Hiroaki KIJIMA (Akita University)

Speaker: P3-1
Continuous local antibiotic perfusion therapy for periprosthetic hip infection
Hiroki HIGASHIYAMA (Kansai Medical University); P3-2
Safety and tolerability of a transdermal buprenorphine patch for postoperative pain management after total joint arthroplasty
Masazumi SAITOU (Kitasuma Hospital); P3-3
Use of an icing system significantly reduces postoperative pain after total hip arthroplasty
Yuji MASUYAMA (Sanno Hospital); P3-4
Chronic expanding hematoma after revision total hip arthroplasty: A case report
Satoe TANABE (Depatrment of Showa medical university Koto Toyosu hospital); P3-5
Association between capsular repair and perioperative blood loss in total hip arthroplasty
Seiya OTA (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine)

Poster Session 4. Knee

Saturday, April 11th (Day 2)

11:30〜11:50

Foyer, 2F

Chair: Eiji SASAKI (Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine)

Speaker: P4-1
When does 275 Deep Venous Thrombosis after Total Knee Arthroplasty recover?
Taisei KAWAMOTO (Matsudo Orthopedic Hospital); P4-2
Short- to Mid-term Outcomes and Predictors of Response After Cooled Radiofrequency Ablation for Knee Osteoarthritis
Hiroharu NAJIMA (NAJIMA orthopaedic clinic); P4-3
Analysis of bone ingrowth on a cementless porous tantalum femoral component in TKA
Arata WATANABE (Ichihara Hospital); P4-4
Schwannomas Arising from the Common Peroneal and Sciatic Nerves: Two Case Reports
Tadayuki HOSHI (Komatsu Orthopaedic Clinic)

Poster Session 5. Foot and ankle

Saturday, April 11th (Day 2)

11:30〜11:45

Foyer, 2F

Chair: Hiroyuki MITSUI (St.Marianna University School of Medicine Department of Orthopaedic Surgery)

Speaker: P5-1
Simultaneous treatment of chronic ankle instability during revision anterior cruciate ligament reconstruction in a female professional handball player
Kotaro ISHIZUKA (Urasoe General Hospital); P5-2
Combined ultrasound-guided arthroscopic repair of ATFL and tibionavicular bundle for rotational ankle instability
Hiroaki KUROKAWA (Nara Medical University); P5-3
Clinical outcomes of open reduction and internal fixation versus ligament reconstruction for Lisfranc injuries: A comparison of clinical scores and weight-bearing foot alignment
Torao ARIYAMA (St.Marianna University,School of Medicine)

プログラム

Friday, April 10th (Day 1)

Opening Remarks The Meeting President of the 18th Congress of AFJO à Aomori

Oral Session 1. Knee

How do knee implants compare with HTO past the 4th decade when performed in osteoarthritis secondary to ACL rupture in patients younger than 40 years

The suture enable area in lateral meniscus by inside-out method using curved needle.

Predicting arthroscopic posoperative stability scores after medial meniscu posterior root repair using preoperative open magnetic resonance imaging findings

Mid-term outcomes after double level osteotomy in patients with severe varus knee osteoarthritis.

Short-term clinical outcomes comparison between single- and triple-bundle PCL reconstruction

Unrestricted kinematic alignment for Asian apex-distal knees: proposal of JLO-modified KA with component alignment analysis

Fibular head location relative to the tibia and lateral collateral ligament running angle

Autogenous morselized bone grafting for large medial tibial defects in total knee arthroplasty: a long-term follow-up study

Symposium 1. Shoulder Instability

Selective augmentation with rotator interval closure and Hill–Sachs remplissage in arthroscopic Bankart repair for traumatic anterior shoulder instability

Arthroscopic management of recurrent anterior shoulder instability — From bankart repair to the latarjet procedure —

From stability to performance: Optimizing coracoid transfer in collision athletes

TBD (tentative)

Sponsored Seminar1 (Arthrex)

Anterolateral procedures of the knee: why, when, and how – biomechanical and clinical perspectives

Special Lecture

I don't think you need spinal surgery, challenges and alternatives

Oral Session 5. Spine2

Using Normative Proximal Junctionnal Angles to Define Proximal Junctionnal Kyphosis: Does It Make Any Difference?

Age and In-brace Cobb Angle Predict Brace Failure in Adolescent Idiopathic Scoliosis

Accuracy of cervical pedicle screw placement with robotic guidance system

Markerless 3D Surface–CT Registration for Augmented Reality-Based Intraoperative Guidance in OLIF51®

Benefits of using a navigation system for UBE/BESS

Decompression vs. Fusion for L5 Radiculopathy due to L5/S1 Foraminal Stenosis: Comparative Outcomes Using Tubular Retractor Systems.

Spinal sagittal malalignment is associated with body height loss after 1 year in osteoporosis patients

Symposium 2. Patellofemoral instability

Surgical strategy after medial patellofemoral ligament reconstruction for lateral patellar instability

Trochleoplasty in major dysplasia: surgical principles

Medio-antero-distal tibial tubercle transfer as a comprehensive strategy for multifactorial patellofemoral instability

Habitual Patellar Dislocation: Pathomechanics and Implications for Surgical Strategy

Pathgenesis and treatment of cartilage injury and osteoarthritis secondary to patellar instability

Oral Session 2. Hand, trauma, tumor

Treatment of Carpal Scaphoid Nonunions by Arthroscopic Grafting : How can we optimize the surgical technique ?

STT Arthritis partial arthroscopic resection of the distal scaphoïde technique and results

Arthroscopic Partial Trapezium Resection and Distraction Pinning for the Treatment of CMC Arthritis

Compartment Syndrome of the Middle Finger Caused by Habu Snakebite Requiring Emergency Fasciotomy: A Case Report

Thumb Carpometacarpal Joint Arthroplasty in Japanese Patients: An Anatomical Study Toward Implant Introduction

Factors on admission of Intraoperative Blood Loss in Pelvic Ring Fractures: Comparison of Statistical and Clinically Representative Models

Megaprosthetic Reconstruction for Nonunion after Internal Fixation of a Femoral Shaft Fracture Associated with a Vascular Malformation: A Case Report

Predictive model for distant metastasis in high-grade soft tissue sarcoma using serum LDH level and tumor size: development and validation

Oral Session 3. Spine 1

Perioperative safety of lumbar decompression surgery performed under continuous low-dose aspirin administration.

Clinical outcome of surgical management of mild cervical compressive myelopathy based on minimum clinically important difference

Assessment of Perioperative Nutritional Status in Spinal Surgery Patients Using Prealbumin

Prediction of Neurological Symptom Onset in Patients with Spinal Bone Metastases Using Diagnostic Imaging Data

Improvement and Accuracy Evaluation of a Nerve Root Region Segmentation Method for MRI Diffusion Tensor Images of Lumbar Spine Disease Using Deep Learning

Dural Canal Pulsation Analysis Using a Dural Canal Simulation Phantom

Clinical and Sagittal Alignment Features of Inflammatory Back Pain in Spondyloarthritis Compared with Lumbar Disc Herniation

Relationship between neurological recovery in spinal cord injury patients and liver function assessment using the liver-to-spleen ratio on CT images - A single-center case-control study

Lancheon Seminar 1. (Medacta)

Ten years of safe use of a shortened cemented Charnley-Kerboull stem

Anterior Minimally Invasive Surgery in Hip Replacement: Lessons from France and Their Application in Japan

Oral Session 4. Foot and ankle

Development and Accuracy Verification of Automatic Hallux Valgus Angle Measurement System Using External Photographs and Artificial Intelligence

Long-term Outcomes Over Five Years of Total Ankle Arthroplasty with an Artificial Talus（CTAA）

Evaluation of the location of the weight-bearing line on the ankle in varus ankle osteoarthritis using weight-bearing long-leg anteroposterior view: a retrospective clinical study

Electrophysiological Evaluation and Surgical Decision-Making in Recurrent Idiopathic Clubfoot Following the Ponseti Method

Three-Dimensional Bone Morphological analysis for Jones Fractures using Statistical Shape Modeling

Postural stability in patients with bilateral hallux valgus—Does the comorbid hammer toe affect stability?

The Relationship Between the Sagittal Fusion Angle of the first TMT Joint and Hallux Valgus Recurrence following Modified Lapidus Procedure

Oral Session 6. Hip 1

Robotic-assisted total hip arthroplasty for severe acetabular dysplasia: Ensuring implant accuracy while reducing surgeon burden

Closed reduction of large head dual mobility hip-dislocation and strategy for revision if failure: A rare but challenging problem: 214 cases during 30 years.

Accuracy of the acetabular cup angle using a novel pinless augmented reality-based portable navigation system during total hip arthroplasty in the supine position

Spinal alignment changes in patients who underwent total hip arthroplasty after lumbar fusion

How is lumbar fusion associated with compensatory hip motion after THA?

Cemented dual mobility cup in primary and revision total hip arthroplasty: Clinical and radiographic outcome

Oral Session 7. Hip 2

Condition changes before and after the coronavirus disease 2019 pandemic in adolescent athletes and development of a non-contact medical checkup application

Efficacy of continuous local antibiotics perfusion in second debridement for periprosthetic joint infection after initial DAIR failure: A retrospective comparative study

Comparison of postoperative outcomes between simultaneous bilateral THA and unilateral THA using the AMIS technique

When the gap matters most: Clinical impact of collar-calcar gap using collared fully hydroxyapatite coated stem in patients with Dorr type C

Tranexamic acid reduces transfusion requirements after pelvic osteotomy: A nationwide propensity score–matched analysis

Improvement in the diagnosis of prosthetic joint infection using periprosthetic culture in blood culture bottles

Could be 'French paradox' cementing technique applied to a collarless double-tapered polished cemented stem?

Saturday, April 11th (Day 2)

Arthroscopic management of recurrent anterior shoulder instability
— From bankart repair to the latarjet procedure —

Parkinson's disease, neurogenic scoliosis　(tentative)

Adult spinal deformity associated with osteoporosis and vertebral fractures　(tentative)