Abstract
The stem of a femoral component can be helpful in assuring proper implant orientation. However, recent interest in short femoral components with which to better accommodate smaller incisions has resulted in technical challenges to proper implant positioning. In order to avoid component malposition and potential compromise of implant longevity, surgeons may rely upon intra-operative x-rays. However this has major drawbacks: radiation exposure of the OR staff; and accommodation of x-ray equipment without compromise of operating field sterility.
There has been created a simple, precise instrument which will ensure proper implant positioning in varus/valgus and flexion/extension planes without the need of intra-operative x-ray. Its reliability has been confirmed by both cadaveric and clinical studies. It has been demonstrated to be 100% accurate in providing proper short femoral component positioning.
