Accuracy of Partial Weight Bearing After Autologous Chondrocyte Implantation

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Title Accuracy of Partial Weight Bearing After Autologous Chondrocyte Implantation
Author Ebert, Jay R.; Ackland, Timothy R.; Lloyd, David Gavin; Wood, David J.
Journal Name Archives of Physical Medicine and Rehabilitation
Year Published 2008
Place of publication United States
Publisher W.B. Saunders Co.
Abstract Objective To determine whether patients can accurately replicate and retain weight-bearing restrictions in both stationary (static) and dynamic conditions after autologous chondrocyte implantation (ACI). Design Case series. Setting Rehabilitation clinic. Participants A consecutive sample of patients (N=48) who had undergone ACI to a medial or lateral femoral condylar defect in the knee. Interventions Patients were trained to partially weight bear using bathroom scales and forearm crutches prior to assessment. Main Outcome Measures A force platform was used to measure peak vertical ground reaction forces in patients during static and dynamic conditions immediately after weight-bearing instruction and training, and again during gait 7 days after training. Results Immediately after instruction and weight-bearing practice on a set of scales, patients exerted a mean of 15.8% body weight more than expected during walking for 20% weight-bearing trials, 8.3% more for the 40% trials, 11.9% more for the 60% trials, and 1.2% less for the prescribed 80% trials. Accuracy of weight-bearing replication improved across all weight-bearing levels when assessed 7 days later, when patients exerted a mean of 6.6% body weight more than expected during walking for 20% weight-bearing trials (9.2% body weight improvement), 4.2% more for the 40% trials (4.1% body weight improvement), 9.9% more for the 60% trials (2% body weight improvement), and 0.2% more for the 60% trials (1% body weight improvement). Conclusions Patients were unable to follow weight-bearing restrictions after instruction and practice on a set of scales, and patients were unable to replicate weight-bearing levels in both static and dynamic conditions.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.apmr.2008.02.019
Volume 89
Issue Number 8
Page from 1528
Page to 1534
ISSN 0003-9993
Date Accessioned 2011-07-06
Language en_AU
Research Centre Centre for Musculoskeletal Research
Faculty Griffith Health Faculty
Subject PRE2009-Sports Medicine
URI http://hdl.handle.net/10072/40289
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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