Finnish Unicompartmental and Total Knee Arthroplasty Investigation

UKA involves only the replacement of affected medial compartment. In the study, the operation will be performed through standard medial parapatellar incision with midline skin incision, but the knee joint and fascia will be opened like in standard Oxford minimally invasive incision. The procedure will be performed by using Oxford Microplasty instrumentation and following Microplasty surgical technique (Biomet Orthopedics). Intraoperative local infiltration analgesia is used for postoperative pain management. Drain is not used.

TKA is performed through a standard medial parapatellar incision, which provides easy access to the knee joint. Skin incision is done to midline. Intramedullary guide is used for alignment of femoral and tibia saw cuts and component positions. Components will be cemented in position. The patella will not be resurfaced. Intraoperative local infiltration analgesia (LIA) is used for postoperative pain management. Drain is not used.