Abstract: A guide clamp for clamping a femur and guiding placement of a guide wire relative to the femur. The guide clamp includes a body supporting a pair of clamping surfaces at the end of a pair of clamping arms that are spring-biased to move with respect to each other into a closed position to grip the femur. Defined by the body is a guide opening that guides insertion of the guide pin once the femur has been gripped. One of the clamping arms of the guide clamp may have proximal and distal portions that are slidably adjustable with respect to each other to allow a controlled repositioning of the guide opening with respect to the femur. The guide clamp may also include an engagement member which is supported by the body of the clamp and is capable of advancing into abutting contact with the head of the femur.

Abstract: An acetabular cup assembly allows pre-operative or interoperative selection and securement of a bearing member within a shell member of the acetabular cup assembly, the bearing member being selected from a plurality of bearing members having different characteristics, including bearing characteristics, securement characteristics, position characteristics and orientation characteristics, so as to enable a surgeon to select those characteristics most appropriate to a particular patient, as determined by a pre-operative assessment or by an evaluation of conditions encountered at an implant site during the implant procedure, and to incorporate the desired characteristics into the acetabular cup assembly with ease and economy.