Question: In patients undergoing primary total knee arthroplasty (TKA), are better clinical, functional, and satisfaction results achieved with resurfacing or nonresurfacing of the patella?
Design: Randomized (allocation concealed)*, blinded (patients, data collectors, outcome assessors, data analysts, and data safety and monitoring committee)*, controlled trial with 10-year follow-up.
Setting: A tertiary-care university center in London, Ontario, Canada.
Patients: 90 patients (mean age, 70 y; 57% women) (100 knees) having TKA. Exclusion criteria included previous patellectomy, inflammatory arthritis, patellar fracture or instability, previous extensor mechanism procedures, high tibial osteotomy, severe valgus or varus deformity, previous unicondylar knee replacement, and history of septic arthritis or osteomyelitis. 83 patients (92%) (90 knees) were available for follow-up.
Intervention: TKA featured an anatomically designed cruciate retaining femoral trochlear groove and intercondylar notch acceptable for both …
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