Prevalence and characteristics of femoroacetabular impingement among Japanese patients: A nationwide epidemiological study
This nationwide study identified secondary OA due to hip dysplasia as the most common (52.9 %), with primary FAI identified in 6.2 % of cases, predominantly affecting younger males with cam-type morphology. Standardised radiographic assessment revealed an underdiagnosis of hip dysplasia and OA and a potential overdiagnosis of cam-type FAI, emphasising the need for accurate diagnosis to guide appropriate treatment decisions.
Authors
- Yasuharu Nakashima (ORCID: https://orcid.org/0000-0002-6692-982X)
- Yoshinobu Uchihara (ORCID: https://orcid.org/0000-0001-9798-6125)
- Keiichiro Ueshima
- Hiromasa Tanino (ORCID: https://orcid.org/0000-0002-3210-6294)
- Hiroyuki Ike (ORCID: https://orcid.org/0000-0001-6930-0659)
- Koichi Kinoshita (ORCID: https://orcid.org/0000-0001-6143-9429)
- Michiaki Takagi (ORCID: https://orcid.org/0000-0002-3052-787X)
- Masahiro Hasegawa (ORCID: https://orcid.org/0000-0001-7948-2003)
- Takeshi Shoji (ORCID: https://orcid.org/0000-0002-8242-862X)
- M. Sawa (ORCID: https://orcid.org/0000-0002-3309-2584)
- Toshiyuki Tateiwa (ORCID: https://orcid.org/0000-0002-2693-3576)
- Hideki Fujii (ORCID: https://orcid.org/0000-0001-8985-6312)
- Ryohei Takada (ORCID: https://orcid.org/0000-0001-9317-5157)
- Kenichiro Doi
- Akihiro Sudo (ORCID: https://orcid.org/0000-0003-0474-4368)
- Eiji Takahashi (ORCID: https://orcid.org/0000-0002-6287-2969)
- Yutaka Inaba (ORCID: https://orcid.org/0000-0002-6676-1190)
- Ayumi Kaneuji (ORCID: https://orcid.org/0000-0001-7224-0722)
- Yohei Matsushita (ORCID: https://orcid.org/0009-0005-4543-1204)
- Ayano Amagami (ORCID: https://orcid.org/0000-0002-5284-6169)
- Juji Ito (ORCID: https://orcid.org/0000-0002-3410-2940)
- Soshi Uchida
- Tetsuya Jinno (ORCID: https://orcid.org/0000-0001-8629-2283)
- Naomi Kobayashi (ORCID: https://orcid.org/0000-0002-2419-0860)
- Keisuke Uemura (ORCID: https://orcid.org/0000-0002-9245-1743)
- Yuji Yasunaga (ORCID: https://orcid.org/0000-0002-1086-537X)
- Yoichi Murata (ORCID: https://orcid.org/0000-0002-5420-1604)
- Naohiko Mashima
- Kensuke Fukushima (ORCID: https://orcid.org/0000-0001-8599-0872)
- Nobuhiko Sugano (ORCID: https://orcid.org/0000-0002-5305-3179)
- Takuma Yamasaki (ORCID: https://orcid.org/0000-0002-5848-2079)
- Hidetoshi Hamada (ORCID: https://orcid.org/0000-0003-3652-9400)
- Kengo Yamamoto (ORCID: https://orcid.org/0000-0002-6891-2853)
- Yohei Naito (ORCID: https://orcid.org/0000-0002-2159-5942)
- Hiroshi Ito
- Hajime Sugiyama (ORCID: https://orcid.org/0000-0002-1624-2640)
- Toshikazu Kubo
- Takuaki Yamamoto
- Masanori Fujii
Institutions
- Jikei University School of Medicine (JP)
- Yokohama City University Medical Center (JP)
- Kyoto Prefectural University of Medicine (JP)
- Tokyo Institute of Psychiatry (JP)
- Kanagawa Rehabilitation Hospital (JP)
- Kure Medical Center (JP)
- Kitasato University (JP)
- Dokkyo Medical University (JP)
- Yokohama City University (JP)
- The University of Osaka (JP)
Publication Details
- Journal
- Journal of Orthopaedic Science
- Published
- 2025-09-16
- DOI
- https://doi.org/10.1016/j.jos.2025.08.014
- Primary Topic
- Hip disorders and treatments
- Type
- article
- Field-Weighted Citation Impact
- 0.00