Patient-specific femoroacetabular impingement instruments and methods

摘要

A device for a patient-specific acetabular and/or femoral guide. The guides can be used in a selected resection of at least one of a femur and an acetabulum to increase a range of motion of the femur relative to the acetabulum. Generally, a natural acetabulum and femoral head are maintained.

主权项

1. A system to resect a selected portion of an anatomy to improve a range of motion of a femur relative to a pelvis in a specific patient, comprising:
a femoral neck resection guide including:
a reamer cap comprising a bone contacting surface that mates with a surface of the femur and a dome-shaped exterior surface opposite the bone contacting surface such that the bone contacting surface is disposed at least partially within the reamer cap;a pin extending from the exterior surface;a guide surface defined by at least a portion of the exterior surface; anda guide arm moveably connected to the pin including a guide arm surface configured to contact the guide surface during movement of the guide arm relative to the exterior surface; wherein the guide arm includes a mill passage to engage a mill instrument that is configured to resect the selected portion of the femur.