Abstract: A method and apparatus for implanting various portions of a prosthesis into an anatomy. The instruments can include portions that allow for positive and rigid engagement with a selected prosthesis member to allow for positioning it relative to the anatomy. Further, various instruments can include portions that allow it to engage or match with marking portions or alignment portions on a first prosthesis member to align a second prosthesis member with the first one. Further, methods of using the various instruments are taught and providing for a less or minimally invasive procedure.

Abstract: Broaching instruments divided into multiple parts to reduce the size of incisions necessary to perform a total hip arhroplasty, minimizing trauma to tissue surrounding the hip joint. One approach is to divide the broach head into first and second segments for insertion through posterior and anterior incisions, respectively, and interconnection within the patient. Methods of preparing the proximal medullary canal of a femur for receiving a hip stem implant utilize the multi-part broaching instruments and two-incision techniques to introduce the broaching instruments into the patient for broaching the canal in preparation for receiving the implant.