@article{ref1,
title="The effect of hip arthroplasty on osteoarthritic gait: a blinded, prospective and controlled gait study at fast walking speeds",
journal="Journal of arthroplasty",
year="2016",
author="Aqil, Adeel and Wiik, Anatole and Zanotto, Michela and Manning, Victoria and Masjedi, Milad and Cobb, Justin P.",
volume="31",
number="10",
pages="2337-2341",
abstract="BACKGROUND: Painful unilateral cox arthrosis results in excessive forces passing through the &quot;good leg.&quot; The impact of hip arthroplasty on contralateral leg gait has not been fully explored. We measured patients gait before and after arthroplasty, to answer 3 questions: (1) Are peak forces for the good legs outside the normal range? (2) Does arthroplasty protect contralateral limbs by reducing peak forces? and (3) Does arthroplasty result in a more symmetric and normal gait at fast walking speeds? METHODS: This prospective, controlled study, assessed ground reaction forces before and 13 months (range, 6-21 months) after hip arthroplasty. <br><br>RESULTS: Peak ground reaction force in contralateral hips fell (1.45-1.38 times body weight, P =.04), whereas symmetry index maximum weight acceptance improved postoperatively (12.2 ± 11 vs 1.3 ± 6, P <.001). <br><br>CONCLUSION: Although gait becomes more symmetrical, patients still experience higher peak loads than matched controls. These high forces may offer an explanation to the progression of arthrosis in lower limbs.<br><br>Copyright © 2016 Elsevier Inc. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="0883-5403",
doi="10.1016/j.arth.2016.03.002",
url="http://dx.doi.org/10.1016/j.arth.2016.03.002"
}