Patient-specific femoroacetabular impingement instruments and methods
First Claim
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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; and
a 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.
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Abstract
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.
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Citations
13 Claims
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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:
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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; and a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification