alexa Resurfacing versus not resurfacing the patella in total knee arthroplasty: 8- to 10-year results.


Evidence based Medicine and Practice

Author(s): Mayman D, Bourne RB, Rorabeck CH, Vaz M, Kramer J, Mayman D, Bourne RB, Rorabeck CH, Vaz M, Kramer J

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Abstract Patellar resurfacing in total knee arthroplasty is a topic debated in the literature. Concerns include fracture, dislocation, loosening, and extensor mechanism injury. Residual anterior knee pain has been reported when the patella is not resurfaced. One hundred patients with osteoarthritic knees were prospectively randomized to either have their patella resurfaced or left not resurfaced. All patients were treated with a single prosthesis that featured an anatomically designed patellofemoral articulation (Anatomic Medullary Knee, DePuy, Warsaw, IN) Two patients in the unresurfaced group and one in the resurfaced group required repeat surgery for patellofemoral complications. At 8- to 10-year follow-up evaluations, Knee Society Clinical Ratings scores were not different between the 2 groups. Rates of anterior knee pain with walking and stair climbing were significantly less in the resurfaced group. Eighty percent of patients with a resurfaced patella were extremely satisfied with their total knee arthroplasty versus 48\% without patellar resurfacing. When satisfied and extremely satisfied patients were grouped together, there was no difference between the 2 groups.
This article was published in J Arthroplasty and referenced in Evidence based Medicine and Practice

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