Methods and systems for hip replacement
AssigneeiHip Surgical, LLC
InventorAnatol Podolsky
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Abstract
Methods and apparatus of the present invention provide for orthopaedic replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, an intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.
Claims21
1-17. (canceled)
A method of performing a total hip arthroplasty, comprising:
- seating a prosthetic acetabular cup in an acetabulum;
- fitting a prosthetic femoral head within the prosthetic acetabular cup, the prosthetic femoral head rotatable with respect to the prosthetic acetabular cup;
- inserting into the femur at least a portion of an intramedullary rod having a neck bore;
- inserting a head-engaging end of a prosthetic femoral neck into (i) a femoral bore defining a passage through the femur from a side of the femur opposite the acetabulum and (ii) the neck bore in the inserted intramedullary rod;
- and
- joining the head-engaging end of the prosthetic femoral neck to the prosthetic femoral head.
A system for hip arthroplasty, comprising:
- a prosthetic femoral head;
- an intramedullary rod positionable in a femur of a patient;
- and
- a prosthetic femoral neck extendible through a bore in a femur, from a side of the femur opposite the acetabulum, and in a direction toward the patient's acetabulum, the prosthetic femoral neck configured to be joined to the intramedullary rod and having an end configured to be joined to the prosthetic femoral head;
- wherein the intramedullary rod comprises a threaded neck fixation bore extending within, and along a long axis of, the intramedullary rod;
- wherein the intramedullary rod further comprises a tapered neck fixation bore extending from a proximal side of the intramedullary rod to a distal side of the intramedullary rod;
- wherein the intramedullary rod is rotationally engageable to the prosthetic femoral neck;
- wherein the threaded bore and the tapered bore cooperate to fix the prosthetic femoral neck relative to the intramedullary rod.
Dependencies are inferred from the claim text.