Method And Apparatus For Determining A Location

摘要

A template operable to reestablish the center of rotation of a native femoral head at the head of an implanted prosthesis. The template includes a first member with a marking passage and optional cutting guide and a second member with a target. The first member of the template can be placed on a femur and the second member can be moved in the proximal-distal, medial-lateral and anterior-posterior directions to fix the center of the target at the center of rotation of a femoral head. The head of a prosthesis can be manipulated to come in contact with the target to reestablish the center of rotation of the native femoral head.

主权项

1. A femoral head center location template, comprising:
a first member configured to be positioned adjacent to a surface of at least one of a shaft of a femur or a greater trochanter of the femur, the first member defining a marking feature to allow a mark to be placed on at least one of the shaft of the femur or the greater trochanter of the femur; a second member extending from the first member that is moveable and fixable relative to the first member, the second member including a target portion configured to be positioned by moving at least one of the first member or the second member to identify a center of a femoral head while the first member is positioned adjacent to at least one of the shaft of the femur or the greater trochanter of the femur; a first locking member operable to fix the second member in a first direction relative to the first member; and a second locking member to fix the second member relative to the first member in a second direction different from the first direction relative to the first member; wherein the first member and the second member are operable to be removed from near the femur once the second member is fixed relative to the first member in both the first direction and second direction.