Minimally Invasive Total Knee Arthroplasty With a Limited Medial Parapatellar Arthrotomy

Minimally invasive total knee arthroplasty (MIS TKA) has evolved over the years as an alternative to traditional approaches. The limited medial parapatellar arthrotomy is a versatile approach and has the advantage of diminished postoperative morbidity, less postoperative pain, decreased blood loss, and earlier functional recovery. However, the key to success is optimizing patient selection and paying specific attention to the operative details. A shorter, thinner female with a lower body mass index, minimal deformity, and better preoperative range of motion is better suited for MIS TKA. The surgical technique and principles have not changed from the standard approach, but it is performed in a surgical field with limited visibility and modified instrumentation.