Hideyuki Koga

EDUCATION Tokyo Medical and Dental University, Japan Medical school: 1993-1999, graduated in 1999, Degree: MD. 1999 Graduate school: 2004-2008, graduated in 2008, Degree: PhD. 2008. Thesis; Cartilage regeneration with synovium-derived mesenchymal stem cells. Advisor: Takeshi Muneta, MD, PhD. PROFESSIONAL EXPERIENCE Dept. of Orthopedic Surgery, Tokyo Medical and Dental University, Japan, May 1999 to September 1999. Dept. of Orthopedic Surgery, Kudanzaka Hospital, Tokyo, Japan, October 1999 to December 1999. Dept. of Anesthesiology, Tokyo Medical and Dental University, Japan, January 2000 to June 2000. Dept. of Orthopedic Surgery, Kawaguchi Kogyo General Hospital, Saitama, Japan, July 2000 to March 2001. Dept. of Orthopedic Surgery, Saku General Hospital, Nagano, Japan, April 2001 to March 2002. Dept. of Orthopedic Surgery, Japanese Foundation for Cancer Research, Cancer Institute Hospital, Tokyo, Japan, April 2002 to May 2003. Dept. of Orthopedic Surgery, Douai Memorial Hospital, Tokyo, Japan, June 2003 to May 2004. Section of Orthopedic Surgery, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan, June 2004 to March 2008. Dept. of Orthopedic Surgery, Kawaguchi Kogyo General Hospital, Saitama, Japan, April 2007 to April 2008. Oslo Sports Trauma Research Center, Norwegian School of Sport Sciences, Oslo, Norway, May 2008 to June 2010. Assistant professor, Dept. of Cartilage regeneration, Tokyo Medical and Dental University, Tokyo, Japan, July 2010 to March 2012. Assistant professor, Dept. of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan, April 2012 to March 2016. Junior associate professor, Dept. of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan, April 2016 to March 2017. Associate professor, Dept. of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan, April 2017 to April 2020. Professor, Dept. of Joint Surgery and Sports Medicine, Tokyo Medical and Dental University, Tokyo, Japan, May 2020 to present. Member of medical committee, Ski Association of Japan, April 2011 to present. Member of medical committee, International Ski Federation, June 2011 to present. Member of scientific committee, IOC World Conference Prevention of Injury and Illness in Sport, July 2018 to present. Chairman, International committee, Japanese Orthopaedic Society of Knee, Arthroscopy and Sports Medicine (JOSKAS), February 2019 to present.

Prof. Koga graduated from Tokyo Medical and Dental University (TMDU) in 1999, and joined Department of Orthopaedic Surgery, Tokyo Medical and Dental University. After clinical fellowship, he also entered graduate school and have defended PhD at TMDU in 2008 with the main topics regarding cartilage regeneration using mesenchymal stem cells. Then he went to Oslo Sports Trauma Research Center, Norway from 2008 until 2010. His research topic was regarding knee anterior cruciate ligament (ACL) injury prevention, and clarified detailed ACL injury mechanisms first in the world using a sophisticated 3D video analysis called model-based image-matching technique. He is still working on ACL injury prevention, especially focusing on ski injury as a member of medical committee, International Ski Federation, and recently also as a member of scientific committee, IOC World Conference Prevention of Injury and Illness in Sport.

Since 2010 after back to Japan, Prof. Koga has been doing many double-bundle ACL reconstructions, reconstructions of multiligament knee injuries, as well as meniscus surgeries at TMDU. He has done and is doing some clinical and biomechanical researches regarding knee ligament and meniscus surgeries, especially focusing on double-bundle ACL reconstruction. His another hot topic now is meniscus preservation. The meniscus plays important roles in protecting the articular cartilage through absorbing joint loading. Extrusion of the meniscus suggests failure of load absorbing function, and is correlated with progression of OA. However, there had been no effective surgical procedures for meniscus extrusion. He has developed a new surgical procedure called arthroscopic centralization to reduce/prevent meniscus extrusion. Currently He is applying this technique to OA knees to reconstruct knee function, hopefully to prevent progression of OA and consequently to reduce the number of patients with severe OA who require knee arthroplasty. Until now he has published more than 140 papers, has given lectures or had presentations at many international congresses.

Prof. Koga became the professor of the Department of Joint Surgery and Sports Medicine, TMDU in 2020. He honorably obtained the traveling fellowship between JOSKAS (Japanese Orthopaedic Society of Knee, Arthroscopy, and Sports Medicine) and SIGASCOT (Società Italiana del Ginocchio Artroscopia Sport Cartilagine Tecnologie Ortopediche) in 2016. He also serves on the editorial board of Journal of Orthopaedic Science and Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology