オカザキ　ケン   Okazaki Ken   岡崎　賢    所属   医学部 医学科（東京女子医科大学病院）    職種   教授・基幹分野長
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Evaluation of the balance function before and after total knee arthroplasty using Berg balance scale.
掲載誌名	正式名：Archives of orthopaedic and trauma surgery 略　 称：Arch Orthop Trauma Surg ISSNコード：14343916/09368051
掲載区分	国外
巻・号・頁	eub,pp.epub
著者・共著者	KIYOHARA Massato, HAMAI Satoshi, OKAZAKI Ken, FUJIYOSHI Daisuke, MIZU-UCHI Hideki, NAKASHIMA Yasuharu
発行年月	2021/10
概要	INTRODUCTION:The purpose of this study was to evaluate balance function before and after total knee arthroplasty (TKA) using Berg balance scale (BBS). The study also aimed to identify factors associated with balance impairment.MATERIALS AND METHODS:Ninety-three knees in 90 patients were prospectively evaluated using their BBS scores, passive knee extension/flexion angles, Visual analogue scale for pain scores, hip-knee-ankle angles, and knee extensor/flexor muscle strengths before and after TKA. A total BBS score of less than 45 indicates an enhanced risk of multiple falls. Multivariate logistic regression models were performed to elucidate factors associated with post-operative BBS score.RESULTS:A significant difference in mean pre- and post-operative BBS scores were noted (49.3 ± 6.4 vs. 52.2 ± 4.7) (p < 0.05). The percentage of pre- and post-operative BBS scores less than 45 were 20% and 10% (p < 0.05). Rheumatoid Arthritis (RA), lower pre-operative BBS score, and larger post-operative knee flexion contracture were significantly associated with lower post-operative BBS score (p < 0.01). The post-operative knee flexion contracture greater than 10° was significantly associated with substantially high odds of post-operative BBS scores less than 45 (Odds ratio 7.6; 95% confidential interval 1.69-34.17).CONCLUSIONS:While TKA significantly improved BBS scores, 10% of the patients remained at a risk for multiple falls. RA, lower pre-operative BBS score, and post-operative knee flexion contracture greater than 10° retained balance impairment even after TKA.
DOI	10.1007/s00402-021-04233-z
PMID	34716485