Determining the rotational alignment of the femoral component in total knee arthroplasty using the epicondylar axis.

摘要: The posterior condylar surfaces of the femur are routinely used as reference for rotational orientation femoral component during most primary total knee arthroplasties. purpose this investigation was to identify a clearly discernible, reproducible secondary anatomic axis useful determining when cannot be used. Seventy-five embalmed specimen femurs were studied. A surgical epicondylar defined line connecting lateral prominence and medial sulcus epicondyle