Apparatus for performing a minimally invasive total hip arthroplasty

摘要

Apparatus disclosed for performing a minimally invasive total hip arthroplasty includes provisonal femoral neck apparatus and a retractor. The neck apparatus comprises: a provisional femoral neck (222) having a hollow, substantially cylindrical body; a spring biased locking piston (224) in said hollow cylindrical body, said locking piston (224) having a tapered body portion (226), whereby radial force applied to said tapered body portion (226) places said locking piston (224) in an unlocked position; and a forceps (220) with blades (230,232) for applying radial force to said tapered body portion (226) of said locking piston (224). The retractor (122) comprises a tunnel sized for insertion through an incision in a body, wherein said incision leads to a femoral shaft, said tunnel comprising a rasp tunnel (130) sized to allow passage of a femoral rasp therethrough.