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Orthopaedic Surgery Lab
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A lab engaged in both basic and clinical research in orthopaedic surgery.
AboutAbout the lab
Taking on innovative medical technology and sharing the joy of being able to move
The Orthopaedic Surgery Lab at Kyushu University conducts original basic and clinical research in orthopaedics and aims to bring the results back to orthopaedic practice.
Its research groups are divided into hip and knee joint biomechanics, idiopathic osteonecrosis of the femoral head, cartilage, bone and soft tissue tumors, spinal and spinal cord diseases, bone metabolism, the upper limb, and rheumatoid arthritis.
The lab describes itself as having developed new treatments and produced many leaders in orthopaedics, contributing to the development of orthopaedics in Japan.
Key terms
- Biomechanics
- The field that studies the movements of living bodies from a mechanical perspective. The lab has research groups for the hip and knee joints.
- Idiopathic osteonecrosis of the femoral head
- A disease in which the femoral head, the hip-joint end of the thigh bone, undergoes necrosis. The lab studies its cause and pathology, and its prevention.
- Developmental dysplasia of the hip
- A condition in which the socket of the hip joint (the acetabulum) is underdeveloped, leaving the joint unstable or dislocated.
NewsLab news
View More ↗ResearchResearch themes
The lab aims to conduct original basic and clinical research and bring the results back to orthopaedic practice. Here, themes related to the hip joint are presented, based on the researcher information of the professor and the associate professor.
*Illustrative imageMotion of Natural and Artificial Hip Joints
In joint biomechanics research conducted jointly with the Faculty of Engineering at Kyushu University and Kyushu Sangyo University, the lab analyzes the motion of natural hip joints and artificial hip joints.
*Illustrative imageMaterials for Artificial Joints
The lab studies the biomaterials used in artificial joints. Findings from industry-academia collaborative research are reflected in improvements to the artificial joints used clinically, with the aim of developing better ones.
*Illustrative imageHip Joint Shape and Age at Onset of Pain
The lab analyzes hip joint morphology. It has reported that in developmental dysplasia of the hip with typical morphology and no acetabular retroversion, the larger the index combining the torsion of the pelvic side and the femoral side, the younger the age at which pain begins.
*Illustrative imageUnderstanding and Preventing Osteonecrosis of the Femoral Head
Aiming to clarify the cause and pathology of idiopathic osteonecrosis of the femoral head and to establish preventive methods, the lab studies osteonecrosis from both clinical and basic angles. It serves as the research secretariat for an Advanced Medical Care B study on prevention.
MembersFaculty
The staff introduction page of the Orthopaedic Surgery Lab lists Professors, Associate Professors, Lecturers, and Assistant Professors.As of 2026
- ProfessorYasuharu Nakashima
- Associate ProfessorGoro Motomura
- Associate Professor (Department of Artificial Joints and Biomaterials)Satoshi Hamai
- Associate Professor (Department of Rehabilitation Medicine)Makoto Endo
- Associate Professor (Department of Musculoskeletal and Sports Science)Yukio Akasaki
- LecturerMasanori Fujii
- LecturerToshihumi Fujiwara
- Assistant Professor-LecturerShinya Kawahara
- Assistant Professor (Department of Rehabilitation)Ryosuke Yamaguchi
- Assistant ProfessorKazu Kobayakawa
- Assistant ProfessorHiroshi Nabeshima
- Assistant ProfessorKiyoshi Tarukado
- Assistant Professor (Emergency and Critical Care Center)Kenta Momii
- Assistant ProfessorKazuya Yokota
- Assistant ProfessorNobuhiko Yokoyama
- Assistant ProfessorNaoya Kozono
- Assistant ProfessorTakeshi Utsunomiya
- Assistant ProfessorYuta Sakemi
- Assistant ProfessorIchiro Kurakazu
- Assistant ProfessorKenji Kitamura
- Assistant ProfessorEijiro Shimada
- Assistant ProfessorSoichiro Yoshino
- Assistant Professor (Department of Artificial Joint and Biomaterials)Gentaro Ono
- Assistant Professor (Emergency and Critical Care Center)Daigo Kihara
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “HIP JOINT SIMULATOR - NARA - 17469269” Martin Brown / Public domain (cropped)
- Motion of Natural and Artificial Hip Joints: “Hip replacement Image 3684-PH” X-ray Image ID: 3684. Photographer: Unknown. / Public domain (cropped)
- Materials for Artificial Joints: “Dog's titanium TPLO implant ( )” Olgierd (Creative Commons licensed only) / CC BY 2.0 (cropped)
- Hip Joint Shape and Age at Onset of Pain: “Hip dysplasia with arthritis 20060122” Joel Mills (Joelmills at English Wikipedia) / CC BY-SA 3.0 (cropped)
- Understanding and Preventing Osteonecrosis of the Femoral Head: “X-ray of idiopathic avascular necrosis of the femoral head - Lateral” Mikael Häggström, M.D. Author info - Reusing images- Conflicts of interest: None Mikael Häggström, M.D.Consent note: Written informed consent was obtained from the individual, including online publication. / CC0 (cropped)
- Related lab (Pathology and Pathophysiology Lab): “Artery” Lord of Konrad / CC0 (cropped)
- Related lab (Laboratory Animal Science Lab): “Laboratory ICR Mouse post-Stereotactic surgery” Minyoung Choi from Cupertino, CA, USA / CC BY-SA 2.0 (cropped)
- Related lab (Dermatology Lab): “Morpheus- Skin Rejuvenation by Dr.Marwah” Drsiddharthsen / CC0 (cropped)
- Related lab (Pathophysiology and Restorative Internal Medicine Lab): “SEM blood cells” Bruce Wetzel (photographer). Harry Schaefer (photographer) / Public domain (cropped)
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