ミタニ　シゲル   Shigeru Mitani   三谷　茂    所属   川崎医科大学  医学部 臨床医学　脊椎・関節整形外科学    職種   教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Association Between Fatty Infiltration of the Gluteus Medius Muscle and Falls After Total Hip Arthroplasty in Female Patients With Unilateral Primary Hip Osteoarthritis: A Retrospective Cohort Study.
掲載誌名	正式名：Geriatrics & gerontology international 略　 称：Geriatr Gerontol Int ISSNコード：14470594/14470594
掲載区分	国外
巻・号・頁	25(12),pp.1812-1820
著者・共著者	Atsuhi Shinonaga, Hiromi Matsumoto, Mana Uekawa, Kengo Fujii, Hiroki Sato, Shuro Furuichi, Shigeru Mitani, Shigeharu Tanaka, Naoki Deguchi, Ryo Tanaka
発行年月	2025/12
概要	AIM:The fatty infiltration of the gluteus medius may be associated with falls after total hip arthroplasty (THA); however, the supporting evidence is lacking. This study aimed to determine which of the following indices are most related to falls after THA in female patients with unilateral primary hip osteoarthritis (OA): preoperative fatty infiltration of the gluteus medius, hip abductor muscle strength, and gluteus medius muscle mass.METHODS:This was a single-institution retrospective cohort study involving female patients who had undergone primary THA. The outcome of this study was the incidence of falls in the first year after THA. Fatty infiltration and gluteus medius muscle mass were assessed using preoperative computed tomography (CT). Fatty infiltration was estimated using muscle density. Associations between fatty infiltration of the gluteus medius, hip abductor muscle strength, and gluteus medius muscle mass, and falls were analyzed using multivariate logistic regression analysis (covariates: age, number of medications, pain during walking, and history of falls).RESULTS:A total of 116 participants were included in the analysis. Thirty participants (25.9%) fell within the first year of THA. Only the fatty infiltration of the gluteus medius (odds ratio, 0.93; 95% confidence interval, 0.88-0.99; p = 0.029) was a significant predictor of falls after THA.CONCLUSIONS:Our findings indicate a potential association between fatty infiltration of the gluteus medius muscle and falls in female patients who underwent THA.
DOI	10.1111/ggi.70245
PMID	41194564