Minimally invasive hip arthroplasty techniques and apparatus
AssigneePmsw Research Pty Ltd
InventorPeter Walker
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Abstract
A minimally invasive hip arthroplasty technique involves intramedullary insertion of an elongate femoral broach into a femur. The broach has a superior lateromedial transverse bore. A reaming rod is then located through the transverse bore and the neck of the femur. A cutting head is coupled to a distal end of the reaming rod via an incision. An orthogonal drive arm of an arthroplasty jig may also be inserted behind the cutting head to press the cutting head to ream the acetabulum while the reaming rod rotates the cutting head.
Claims31
A method for performing hip arthroplasty involving a femur having a femoral shaft, neck and head and an adjacent pelvis having an acetabulum formed thereon, the method comprising:
- intramedullary insertion of an elongate femoral broach into the shaft, the broach comprising a superior lateromedial transverse bore;
- locating a reaming rod through the transverse bore and femoral neck;
- coupling a cutting head to a distal end of the reaming rod via an incision;
- and
- rotating the cutting head using the reaming rod to ream the acetabulum.
Dependencies are inferred from the claim text.