Schrednitzki D, Beier A, Marx A, et al. - A prospective, randomized study was conducted to compare the clinical outcome of bicompartmental knee arthroplasty (BCA) versus total knee arthroplasty (TKA). Researchers randomized a total of 80 Patients with isolated medial and patellofemoral osteoarthritis to either BCA or TKA. Individuals were analyzed preoperatively, 3, 6, 12 months, 2, and 5 years after the procedure. at each follow-up, Knee Society Score (KSS), Oxford Knee Score (OKS) and UCLA Activity Scores were estimated, Forgotten Joint Score (FJS) was evaluated at final follow up. No significant differences were found in clinical scores between BCA and TKA, only ROM was significantly greater in BCA. Thus, it is questionable if this difference verifies the complexity of BCA correlated with a higher risk of failure. The data exhibited that Maybe staged patellofemoral joint replacement in the presence of a well-functioning UKA is an option for BCA and an alternative to revision to TKA. Long-term studies are required to evaluate the potential advantages of BCA.