Investigation of the Conditions Required for Acquiring ofSocks-handling Ability 5 Months after Total Hip Arthroplasty（Posterior Approach）with Consideration of the Functional Goals：A Longitudinal Study

Kazuo Kinoshita; Kenji Higuchi; Yasuhide Nakayama; Takuya Ohtani; Masahiro Abo

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Investigation of the Conditions Required for Acquiring ofSocks-handling Ability 5 Months after Total Hip Arthroplasty（Posterior Approach）with Consideration of the Functional Goals：A Longitudinal Study

VernacularTitle:後方進入法による人工股関節全置換術後5カ月における靴下着脱動作の獲得状況と獲得するために必要な機能的な目標値の検討 ―多施設間での縦断的研究―
Author: Kazuo KINOSHITA ¹ ; Kenji HIGUCHI ¹ ; Yasuhide NAKAYAMA ² ; Takuya OHTANI ³ ; Masahiro ABO ⁴
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1. Department of Rehabilitation Medicine, The Jikei University Kashiwa Hospital
2. Department of Rehabilitation Medicine, The Jikei University Hospital
3. Department of Orthopaedic Surgery, The Jikei University School of Medicine
4. Department of Rehabilitation Medicine, The Jikei University School of Medicine
Keywords: total hip arthroplasty; socks-handling ability; range of motion; multicenter study
From:The Japanese Journal of Rehabilitation Medicine 2020;57(10):976-985
CountryJapan
Language:Japanese
Abstract: Objective：This study was aimed at investigating the acquirement of socks-handling ability with hip flex, abduction, and external rotation position (hip open position）in 5 months after the posterior approach to total hip arthroplasty (THA), with consideration of the functional goals by conducting a multicenter cooperative study.Methods：The study included 101 patients (104 hip joints) with hip osteoarthritis. We evaluated patient attribution；ranges of motion of the hip, knee and ankle；hip pain in socks-handling；and upper extremity length, which were evaluated before the operation, upon hospital discharge and at 5 months after the posterior approach to THA. The patients were classified into those who attained and did not attain socks-handling ability in open hip position until 5 months after THA. We investigated the factors for acquiring socks-handling ability by using a multiple logistic regression analysis.Results：We identified three factors that significantly correlated to socks-handling ability as follows：(1) socks-handling ability before the operation, (2) range of hip external rotation before operation, and (3) range of hip abduction before discharge. The goal to acquire socks-handling ability is 27.5° hip external rotation and 17.5° hip abduction.Conclusion：We suggest that socks-handling ability must be acquired before THA and that the target range of hip abduction and external rotation must be attained during the early post-THA stage.