In order to improve minimally invasive technique knee arthroplasty the authors developed a device for carrying minimally invasive arthroplasty allowing without patellar dislocation, align total knee replacement through proper channel formation in epimetaphysis thigh where installed Cutting Guide, with the block for trimming the articular surface of the femur. Using the device improves the accuracy of implantation of the prosthesis.

Keywords: invasive knee replacement, gonarthrosis, medical instruments

In order to improve minimally invasive technique knee arthroplasty authors propose "retractor to retract the patella in minimally invasive total knee arthroplasty," which can improve visualization during surgery to protect the extensor apparatus of the knee joint and reduce the number of complications and "Apparatus for carrying a minimally invasive knee arthroplasty" to improve the accuracy of the endoprosthesis implantation through access «quadriceps-sparing».

Keywords: invasive knee replacement, gonarthrosis, medical instruments