Clinical and biomechanical assessment of patella resurfacing in total knee arthroplasty

Clinical Biomechanics
Lisa BertiS Giannini

Abstract

Currently there is a limited understanding of the factors influencing range of motion by comparing patellar resurfacing vs non-resurfacing in total knee arthroplasty during activities of daily living. A recent meta-analysis of patellar replacement confirms better outcome with patella resurfacing; however, the result can be influenced by many other factors, such as: component design, surgeon experience, and technical aspects of the surgery. This study compares the biomechanics of the knee in patients after total knee arthroplasty with and without patellar resurfacing during stair climbing. Forty-seven patients with total knee arthroplasty were assessed at the mean follow-up of 24 months. In all of them a posterior stabilised fixed bearing prosthesis (Optetrak PS, Exactech) was implanted. Twenty-six patients were treated without patellar resurfacing and 21 with patellar resurfacing. Clinical evaluations were performed using the International Knee Society and the Hospital for Special Surgery scores. Ten patients with patellar resurfacing and 10 patients without patellar resurfacing were also studied with motion analysis during stair climbing; 10 healthy subjects were studied for statistical comparison. Clinical passive knee flexio...Continue Reading

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Citations

Oct 2, 2008·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Yeon Soo LeeJoyce H Keyak
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May 21, 2021·Frontiers in Bioengineering and Biotechnology·Paolo CaravaggiClaudio Belvedere

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