Avoiding pitfalls in minimally invasive total knee arthroplasty

Minimally invasive total knee arthroplasty started in the early 1990s with the introduction of unicondylar knee arthroplasty using a limited surgical incision. The techniques were initially received with remarkable enthusiasm; however, enthusiasm waned when results were compromised by the limited visibility of the approaches. Minimally invasive total knee arthroplasty can produce better early results than the traditional approach and can increase the final range of motion of the knee. The techniques are somewhat demanding, and the results can be improved with more careful patient selection, a thorough review of the preoperative radiographs, appropriate choice of the prosthesis, strict attention to the surgical technique, and an aggressive postoperative rehabilitation program.