Program

Invited Lecture

Invited Lecture1
Meniscus and early knee osteoarthritis

October 16 (Thursday)PM2:20-PM3:20Venue2 Link Station Hall Aomori 5F Large conference room

Moderator:	Muneaki Ishijima	Juntendo University Graduate School of Medicine
Speaker:	Martin Englund	Department of Clinical Sciences Lund, Orthopedics, Lund University, Sweden

Invited Lecture2
Spinal pathoanatomy and clinical epidemiology

October 16 (Thursday)AM10:10-AM11:10Venue5 HOTEL AOMORI 3F Kujyaku(East)

Moderator:	Toshimi Aizawa	Tohoku University Graduate School of Medicine
Speaker:	Hiroko Matsumoto	Department of Orthopaedic Surgery and Sports Medicine, Boston Children’s Hospital, Harvard Medical School, United States

Invited Lecture3
Unleashing the therapeutic potential of cell transplantation for spinal cord repair

October 17 (Friday)AM10:10-AM11:10Venue1 Link Station Hall Aomori 2F Hall

Moderator:	Hiroshi Ozawa	Tohoku Medical and Pharmaceutical University
Speaker:	Martin Oudega	Northwestern University/SRAlab, United States

Invited Lecture4
Updates in the regenerative medicine for osteoarthritis treatment

October 17 (Friday)AM10:10-AM11:10Venue5 HOTEL AOMORI 3F Kujyaku(East)

Moderator:	Norimasa Nakamura	Osaka University
Speaker:	Gun-Il Im	Dongguk University, Korea

Invited Lecture5
Multi-dimensional analysis of the human knee as an organ to discover mechanisms of tissue damage and pain in osteoarthritis

October 17 (Friday)AM11:20-PM12:20Venue5 HOTEL AOMORI 3F Kujyaku(East)

Moderator:	Seiji Ohtori	Chiba University Graduate School of Medicine
Speaker:	Martin Lotz	Scripps Research, La Jolla, California, United States

Instructional Lecture

Instructional Lecture5
Approaches to Upper Limb Trauma

October 17 (Friday)AM8:30-AM9:30Venue2 Link Station Hall Aomori 5F Large conference room

Moderator:	Satoshi Toh	Nakazawa　Sports clinic

Orthopaedics and traumatology in a changing world

Speaker:	Dietmar Pennig	German Society of Orthopaedics and Traumatology, Berlin, Germany/Dept. of Trauma, Hand, Reconstructive Surg. and Orthop., Germany/St. Vinzenz-Hosp. Cologne, Germany/Academic Teaching Hosp., Univ. of Cologne, Germany

Microsurgical reconstruction for the treatment of sever damaged upper extremities

Speaker:	Toru Sunagawa	Hiroshima University, Graduate School of Biomedical and health Sciences

GJSOT International Symposium

GJSOT International Symposium1
New Technology in Joint surgery 1

October 17 (Friday)PM1:40-PM2:40Venue8 HOTEL AOMORI 3F Hamanasu

Moderator:	Dietmar Pennig	German Society of Orthopaedics and Traumatology, Berlin/St. Vinzenz-Hospital/Dept. of Trauma, Hand, Reconstructive Surgery and Orthopaedics/Academic Teaching Hospital, University of Cologne
	Toshifumi Ozaki	Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University

Weather sensitivity in knee osteoarthritis patients

Speaker:	Naoya Kikuchi	University of Tsukuba

Intraoperative kinematics of PS-Fixed bearing and PS-Mobile bearing

Speaker:	Takuya Iseki	Hyogo Medical University

Progression of osteoarthritis at long-term follow-up in patients treated for symptomatic femoroacetabular impingement with hip arthroscopy compared with nonsurgically treated patients

Speaker:	Martin Husen	University Hospital Heidelberg, Germany

Risk factors for delayed bone union after OWHTO

Speaker:	Kuniaki Ikeda	Osaka Medical and Pharmaceutical University

EndoCert and Joint register EPRD: The German way to improve joint replacement results: Underconsideration of knee arthroplasty

Speaker:	Wolfram Mittelmeier	Rostock University, Germany

GJSOT International Symposium2
New Technology in Joint surgery 2

October 17 (Friday)PM2:50-PM3:50Venue8 HOTEL AOMORI 3F Hamanasu

Moderator:	Wolfram Mittelmeier	Orthopädische Klinik Universität Rostock
	Koji Hiraoka	Kurume University School of Medicine

Long term outcomes of VerSys total hip arthroplasty over 10 years

Speaker:	Ryoichi Izumida	Edogawa Hospital

Does the femoral cementing quality of cemented stems impact on the PROMs at the mid-term follow-up?

Speaker:	Hitoshi Wakama	Osaka Medical and Pharmaceutical University

A regression model for predicting forearm bone mineral density from radiological indices of the proximal femur

Speaker:	Aoi Kudo	Hiosaki University Graduate School of Medicine

Outcomes and return-to-sports rates in patients with borderline hip dysplasia after periacetabular osteotomy: A case series with 5-year follow-up

Speaker:	Vincent J. Leopold	Department of Orthopaedic Surgery and Traumatology, Charité–Universitätsmedizin Berlin, Berlin, Germany

A simple predictor for rapid progression of hip arthrosis: The sacro-femoral-pubic angle in the coronal plane

Speaker:	Takahumi Saika	Osaka Medical and Pharmaceutical University

GJSOT International Symposium3
New Technology in Spine surgery

October 17 (Friday)PM4:00-PM5:00Venue8 HOTEL AOMORI 3F Hamanasu

Moderator:	Michael Rauschmann	Academic Hospital of the JWG University Frankfurt am Main, Sana Clinic Offenbach, GJSOT, Germany
	Masashi Yamazaki	Institute of Medicine, University of Tsukuba

Potential applications of extended reality technology in exoscopic spinal surgery

Speaker:	Kentaro Yamane	National Hospital Organization Okayama Medical Center

Gene expression profile in thalamus in spinal cord injury after intravenous infusion of mesenchymal stem cells

Speaker:	Ryunosuke Fukushi	Sapporo Medical University/Institute of Regenerative Medicine, Sapporo Medical University School of Medicine

Optimal surgical intervention of spinopelvic dissociation associated with fragility fracture of the pelvis

Speaker:	Syuichi Naniwa	Okayama University

A prospective comparative study using synchronized 3D gait analysis and electromyography: Postural changes and muscle activities in patients with adult spinal deformity and lumbar spinal canal stenosis

Speaker:	Takahiro Sunami	University of Tsukuba

Effect of Runoff Contrast (RC) on the long-term outcomes of Trans-sacral Spinal Canal Plasty(TSCP) using steerable catheters: A single-center observational study

Speaker:	Kimiaki Yokosuka	Kurume University School of Medicine

Joint Symposium

Joint Symposium1(AO Sports)
Advances in Patellofemoral Joint Treatment

October 16 (Thursday)AM10:10-PM12:10Venue2 Link Station Hall Aomori 5F Large conference room

Moderator:	James P. Stannard	University of Missouri
	Yuka Kimura	Hirosaki University Graduate School of Medicine

A new view of the patellofemoral morphology of by novel 3D imaging

Speaker:	Yukiyoshi Toritsuka	Mukogawa Women's University

First-time vs. Recurrent patellofemoral instability: Differences in outcomes after medial patellofemoral ligament reconstruction without bony realignment

Speaker:	Jacqueline M. Brady	Oregon Health & Science University, United States

Predicting J-sign on physical examination and radiographic parameters: Data from the JUPITER cohort

Speaker:	Jacqueline M. Brady	Oregon Health & Science University, United States

Medial patellofemoral ligament reconstruction: Indications and techniques

Speaker:	Takehiko Matsushita	Meiwa hospital

Indications for isolated MPFL reconstruction from a biomechanical perspective

Speaker:	Keisuke Kita	JCHO Osaka Hospital

Indication of osteotomy for patellar instability and recurrent patellar dislocation

Speaker:	Shuhei Otsuki	Osaka Medical and Pharmaceutical University

Fresh Osteochondral Allograft (OCA) transplant for full thickness cartilage loss at the patellofemoral joint: The state of the art in 2025

Speaker:	James P. Stannard	University of Missouri, School of Medicine, United States

Symposium

Symposium1
Frontiers of basic research to improve postoperative outcomes of ACL reconstruction.

October 16 (Thursday)AM8:30-AM10:00Venue2 Link Station Hall Aomori 5F Large conference room

Moderator:	Ryosuke Kuroda	Kobe University Graduate School of Medicine
	Ken Nakata	Osaka University Graduate School of Medicine

Maintenance mechanism of stress concentration preventing function in ACL femoral entheses

Speaker:	Hiromichi Fujie	Tokyo Metropolitan University

Basic research focusing on tendon growth

Speaker:	Junsuke Nakase	Kanazawa University Graduate School of Medicine

Biomarker values before and after ACL reconstruction

Speaker:	Yohei Nishida	Osaka City General Hospital

Therapeutic potential of remnant vascular-derived cells for anterior cruciate ligament reconstruction

Speaker:	Tomoyuki Matsumoto	Kobe University Graduate School of Medicine

A novel ACL reconstruction using tissue-regenerative ligament (Decellularized bovine tendon)

Speaker:	Masafumi Itoh	Tokyo Women's Medical University

Lateral Extra-Articular Tenodesis (LET) effects on Quadriceps Tendon (QT) autograft maturation and knee laxity following Anterior Cruciate Ligament (ACL) reconstruction surgery

Speaker:	John Xerogeneas	Emory University Department of Orthopaedic Surgery, United States

Symposium3
Frontiers in prosthetic design and biomaterials research

October 16 (Thursday)AM9:00-AM10:30Venue6 HOTEL AOMORI 3F Utou

Moderator:	Makoto Osaki	Nagasaki University Graduate School of Biomedical Sciences
	Kenichi Oe	Kansai Medical University

Optimal alignment for enhancing initial fixation of short stem

Speaker:	Arata Kanaizumi	Chitose city hospital

Is full HA stem the ultimate perfection of in THA?

Speaker:	Yoko Miura	Funabashi Orthopaedic Hospital

Development of a cemented stem optimized for Japanese bone morphology

Speaker:	Tomohiro Shimizu	Hokkaido University Faculty of Medicine and Graduate School of Medicine

Development and clinical evaluation of silver-hydroxyapatite coated artificial hip joints

Speaker:	Masaya Ueno	Saga University

Development and clinical application of iodine coating

Speaker:	Toshiharu Shirai	Yokohama Sakae Kyosai Hospital

Biomechanical and biotribological properties of a zirconium nitride multilayer ceramic coating in combination with a vitamin E Blended & moderately crosslinked polyethylene for total knee arthroplasty

Speaker:	Thomas Grupp	Aesculap AG Research & Development, Tuttlingen, Germany/Ludwig Maximilians University Munich, Department of Orthopaedic and Trauma Surgery, Musculoskeletal University Center Munich (MUM), Campus Grosshadern, Munich, Germany