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Orthopaedic Surgery Lab
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A lab in orthopaedic surgery that carries out clinical care and research on the musculoskeletal system.
AboutAbout the lab
Treating musculoskeletal diseases through both clinical care and research.
The Orthopaedic Surgery Lab provides clinical care for diseases of the musculoskeletal system, such as the limbs and spine, and conducts a wide range of research from basic to clinical studies.
The research page introduces groups working on joint mechanics, biomaterials such as artificial joints and artificial bone, cartilage and muscle, stiff shoulders, and posture and gait analysis.
The lab also actively pursues joint research with other parts of Tohoku University, such as the Institute for Materials Research and the School of Dental Medicine.
In clinical care, the university and its affiliated hospitals work together to provide the best treatment for each patient.
Key terms
- Musculoskeletal system
- The group of organs used to move the body, including the skeleton of the limbs and spine, joints, ligaments, and the nerves and muscles that move them
- Sarcopenia
- Age-related loss of skeletal muscle
- Octacalcium phosphate
- An artificial bone material developed at Tohoku University. It can form new bone and is broken down in the body
NewsLab news
Lecturer Yu Mori received the Geriatrics & Gerontology International Excellent Paper Award
Lecturer Yu Mori received the Japanese Society for Bone and Mineral Research Best Paper Award (JBMM Paper Award)
A graduate student received the Excellent Presentation Award at the Young Investigator English Award Session of the 123rd Tohoku Orthopaedic and Traumatological Association meeting
Associate Professor Ko Hashimoto received the Physician Idea Award at the MIRAI Exhibition AWARD of the Annual Meeting of the Japanese Orthopaedic Association
A graduate student received the Best Discussant Award at the 19th Tohoku MIST Research Meeting
ResearchResearch themes
The lab conducts a wide range of research on musculoskeletal diseases, from basic to clinical research. The research page introduces the work of groups on joint mechanics, biomaterials, cartilage and muscle, stiff shoulders, and posture and gait analysis.
*Illustrative imageBiomechanics of the shoulder, hip, and knee joints
For the shoulder, the lab uses a device that simulates dislocation to study the mechanism of dislocation. For the hip, it studies the relationship between dislocation after joint replacement and soft tissue. For the knee, it studies how procedures on soft tissue during high tibial osteotomy affect postoperative stability.
*Illustrative imageClinical application of a new titanium alloy and artificial bone
The lab works on the clinical application, for example in artificial joints, of TiNbSn, a low-elastic-modulus titanium alloy developed at the Institute for Materials Research, Tohoku University. It is also researching octacalcium phosphate, an artificial bone material developed at Tohoku University, toward clinical application.
*Illustrative imageResearch on osteoarthritis and sarcopenia
The lab studies the activity of genes in cartilage cells that are involved in osteoarthritis, from the perspective of DNA methylation. In muscle, it studies age-related sarcopenia, and has shown that activating the transcription factor NRF2 improves muscle endurance in mice.
*Illustrative imageIdentifying the causes of stiff shoulders
Led by the shoulder joint and spine groups, the lab takes on identifying the causes of stiff shoulders (katakori) through joint research across multiple clinical departments. Focusing on muscle stiffness, it is working on measuring muscle stiffness with ultrasound and developing a measuring device jointly with the School of Engineering.
MembersFaculty
The members of the Orthopaedic Surgery Lab consist of faculty members, including Professors, Associate Professors, Lecturers, and Assistant Professors, as well as staff physicians, graduate students, and residents.As of 2026
- ProfessorToshimi Aizawa
- Professor, Endowed Chair of Sports Medicine and Motor Function ReconstructionNobuyuki Yamamoto
- Associate ProfessorKo Hashimoto
- LecturerIchiji Baba
- LecturerYu Mori
- LecturerMasayuki Uemura
- Lecturer, Endowed Chair of Sports Medicine and Motor Function ReconstructionTakayoshi Onogi
- Hospital LecturerYoshito Onoda
- Hospital LecturerKohei Takahashi
- Hospital LecturerShinichiro Yoshida
- Assistant ProfessorKenichiro Yahata
- Assistant ProfessorKeisuke Ishikawa
- Assistant ProfessorTakashi Aki
- Assistant ProfessorHidetatsu Tanaka
- Assistant ProfessorRyuichi Kanabuchi
- Assistant ProfessorTakehiro Sugaya
- Project AssistantYuki Sato
- Project AssistantKazuki Furuyama
- Assistant (Joshu)Hirotaka Kurata
- Assistant (Joshu)Tatsuya Ikeda
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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: “US Army, Burundian orthopedic surgeons work together in the operating room (8558543)” U.S. Army photo by 1st Lt. Katherine Sibilla / Public domain (cropped)
- Biomechanics of the shoulder, hip, and knee joints: “Knee joint 1” John Campbell / CC BY 2.0 (cropped)
- Clinical application of a new titanium alloy and artificial bone: “Micropear” Rob Pullar / CC BY 4.0 (cropped)
- Research on osteoarthritis and sarcopenia: “Osteoarthritis on X-ray” James Heilman, MD / CC BY-SA 4.0 (cropped)
- Identifying the causes of stiff shoulders: “A modern medical ultrasound scanner” Harrison Keely / CC BY 4.0 (cropped)
- Related lab (Plastic and Reconstructive Surgery Lab): “Facial plastic surgery procedure in operating room” FacialAnatomyEditor / CC BY 4.0 (cropped)
- Related lab (Clinical Disability Science Lab): “US Navy 110810-N-UB993-034 A physical therapy room in the newly opened surgical unit for wounded, ill and injured service members at Naval Medical” U.S. Navy photo by Mass Communication Specialist 1st Class Anastasia Puscian / Public domain (cropped)
- Related lab (Medical Biochemistry Lab): “Pipette de laboratoire sur fond blanc au Bénin 03” Adoscam / CC BY-SA 4.0 (cropped)
- Related lab (Pediatric Surgery Lab): “Stollery Children's Hospital walkway” RhPAP / CC BY 3.0 (cropped)
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