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Tomomatsu K, Taniguchi T, Hashizume H, Harada T, Iidaka T, Asai Y, Oka H, Muraki S, Akune T, Kawaguchi H, Nakamura K, Yoshida M, Tanaka S, Yoshimura N, Yamada H. Factors associated with cam deformity in Japanese local residents. Sci Rep 2024; 14:1585. [PMID: 38238438 PMCID: PMC10796762 DOI: 10.1038/s41598-024-51876-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024] Open
Abstract
Femoroacetabular impingement has increasingly been recognized as a cause of primary hip osteoarthritis; however, its epidemiological indications remain unclear. We aimed to clarify the epidemiological indications and factors associated with cam deformity in a large-scale population-based cohort in Japan. Overall, 1480 participants (2960 hips) (491 men, 989 women; mean age, 65.3 years) analyzed in the third survey of the Research on Osteoarthritis/Osteoporosis Against Disability study were included. The α angle and spinopelvic parameters (lumbar lordosis, sacral slope, pelvic tilt, and pelvic incidence) were radiographically measured. Cam deformity was defined as α angle ≥ 60°. Overall, the cam deformity prevalence was 147/2960 (5.0%). Cam deformity prevalence tended to increase with age; in the univariate analysis, a higher percentage of men was observed in the group with cam deformity than in the group without it. No relationship was observed between cam deformity and hip pain. Factors associated with α angle were examined via multiple regression analysis for each gender; α angle was significantly associated with age and BMI in each gender. The α angle and PT were correlated in women. Thus, α angle and cam deformity prevalence increase with age in Japanese individuals. Accordingly, cam deformity can be considered a developmental disease.
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Affiliation(s)
- Koichi Tomomatsu
- Naga Municipal Hospital, 1282 Uchida, Kinokawa City, Wakayama, Japan
| | - Takaya Taniguchi
- Naga Municipal Hospital, 1282 Uchida, Kinokawa City, Wakayama, Japan.
| | - Hiroshi Hashizume
- School of Health and Nursing Science, Wakayama Medical University, 590 Mikazura, Wakayama City, Wakayama, Japan
| | - Teiji Harada
- Naga Municipal Hospital, 1282 Uchida, Kinokawa City, Wakayama, Japan
| | - Toshiko Iidaka
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, Faculty of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, Japan
| | - Yoshiki Asai
- Department of Orthopaedic Surgery, Wakayama Medical University, 811‑1 Kimiidera, Wakayama City, Wakayama, Japan
| | - Hiroyuki Oka
- Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical &Research Center, Faculty of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, Japan
| | - Shigeyuki Muraki
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, Faculty of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, Japan
| | - Toru Akune
- National Rehabilitation Center for Persons With Disabilities, 4‑1 Namiki, Tokorozawa City, Saitama, Japan
| | | | - Kozo Nakamura
- Department of Orthopaedic Surgery, Towa Hospital, 4‑7‑10 Towa, Adachi‑ku, Tokyo, Japan
| | - Munehito Yoshida
- Department of Orthopaedic Surgery, Sumiya Orthopedic Hospital, 337 Yoshida, Wakayama City, Wakayama, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, Japan
| | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, Faculty of Medicine, University of Tokyo, 7‑3‑1 Hongo, Bunkyo‑ku, Tokyo, Japan
| | - Hiroshi Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, 811‑1 Kimiidera, Wakayama City, Wakayama, Japan
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