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Gait analysis in primary total knee arthroplasty with and without patellar resurfacing: A randomized control study
Authors:Yi-ming Xu  Yue-hong Bai  Jun Zhou  Qing-tian Li  Juan Liang
Institution:(1) Department of Orthopaedic Surgery and Traumatology, Atrium Medical Center, Postbus 4446, 6401 CX Heerlen, The Netherlands;(2) Department of Methodology and Statistics, Maastricht University, Maastricht, The Netherlands
Abstract:It is still controversial whether or not to resurface patella during primary total knee arthroplasty (TKA). One of the reasons may be insensitive measurement tools. We conducted a randomized controlled study to compare kinematic and kinetic parameters of resurfacing and nonresurfacing patella with the Vicon gait analysis system. The results show that patient post-operative gait of the two groups improved compared to pre-operative gait. Part of gait parameters, knee flexion at heel-strike, double limb support time and maximum adduction angle appeared to be statistically difference in 3 months, but 12 months later, the gait parameters of the two groups had no significant difference. Therefore, it seems that the final function of knee after TKA is not related whether or not to resurface patella.
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