Schrednitzki D, Beier A, Marx A, et al. - A prospective, randomized study was performed to compare the clinical outcome of bicompartmental knee arthroplasty (BCA) vs total knee arthroplasty (TKA). Researchers randomized 80 patients with isolated medial and patellofemoral osteoarthritis to either BCA or TKA. Individuals were assessed preoperatively, 3, 6, and 12 months, and 2 and 5 years after the procedure. They estimated Knee Society Score, Oxford Knee Score, and the University of California, Los Angeles activity scores at each follow-up; at the final follow-up, Forgotten Joint Score was evaluated. There were no significant differences in clinical scores between BCA and TKA; an only range of motion was significantly greater in BCA. Thus, there was a question if this difference verifies the complexity of BCA correlated with a higher risk of failure. The findings revealed that maybe staged patellofemoral joint arthroplasty in the presence of a well-functioning UKA is an option for BCA and an alternative to revision to TKA. Future research is required to evaluate the potential advantages of BCA.