Comparison Between the Onlay and Inlay Techniques for Patellar Resurfacing in Posterior Cruciate Ligament-Substituting Total Knee Arthroplasty

Comparison Between the Onlay and Inlay Techniques for Patellar Resurfacing in Posterior Cruciate Ligament-Substituting Total Knee Arthroplasty: A Prospective, Randomized Controlled Trial

The purpose of this study is to compare clinical outcome in posterior cruciate ligament-substituting total knee arthroplasty with onlay patellar resurfacing technique and inlay patellar resurfacing technique

Inclusion Criteria:

• Primary osteoarthritis of knee who were scheduled for a primary total knee arthroplasty

Exclusion Criteria:

• Valgus deformity
• History of inflammatory arthroplathy
• Previous fracture or open surgery on the same knee
• History of patellar instability