Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/72590
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Type: Journal article
Title: The effect of hip position on the length of trochanteric muscles: potential implications for early postoperative management of hip arthroplasty
Author: Lee, Y.
Callary, S.
Howie, D.
Thewlis, D.
Solomon, L.
Citation: Journal of Arthroplasty, 2012; 27(6):953-960
Publisher: Churchill Livingstone Inc Medical Publishers
Issue Date: 2012
ISSN: 0883-5403
1532-8406
Statement of
Responsibility: 
Yu C. Lee, Stuart A. Callary, Donald W. Howie, Dominic Thewlis and Lucian B. Solomon
Abstract: We investigated the effect several lower limb positions have on muscles that are detached to perform hip arthroplasty through posterior and lateral approaches. We used string models and computer navigation to measure the length changes in these muscles throughout hip movements in the anatomical planes and while simulating several sitting and lying postures. Piriformis and the obturators were shortened by sitting and lying postures when the femur was externally rotated and abducted; the clinical implication being that such postures have the potential to best protect their repair after a posterior approach. The anterior part of gluteus medius was lengthened with femoral external rotation. This lengthening was prevented, and therefore, theoretically, the gluteus medius repair protected after a lateral approach, by neutral or internal femoral rotation.
Keywords: Muscle, Skeletal; Femur; Hip Joint; Humans; Cadaver; Range of Motion, Articular; Arthroplasty, Replacement, Hip; Postoperative Period; Posture; Movement; Models, Anatomic; Male
Rights: Crown Copyright © 2012 Published by Elsevier Inc. All rights reserved.
RMID: 0020119397
DOI: 10.1016/j.arth.2011.08.023
Appears in Collections:Orthopaedics and Trauma publications

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