Method for performing a high tibial osteotomy
AssigneeHowmedica Osteonics Corp.
InventorCarlos E. Collazo
Life of this patent
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Abstract
A cutting block for use in a bone osteotomy procedure is disclosed, and includes a first cutting guide surface, a second cutting guide surface, and a third cutting guide surface. The first, second, and third cutting guide surfaces are adapted to be temporarily affixed to a bone having a first side and a second side such that the first cutting guide surface is disposed on the first side of the bone, and such that the second cutting guide surface and third cutting guide surface are disposed on the second side of the bone forming an angle therebetween.
Claims45
A method for performing an osteotomy procedure on a bone having a first side and a second side, comprising the steps of:
- making a first cut in the bone, the first cut extending from an outside surface on the first side of the bone to a first terminus disposed within the bone;
- making a second cut in the bone, the second cut extending from an outside surface on the second side of the bone to a second terminus disposed within the bone, wherein the second terminus is spaced apart from the first terminus along a longitudinal axis of the bone such that a continuous portion of bone is defined from a location above the first and second cuts to a location below the first and second cuts;
- and
- making a third cut in the bone, the third cut extending from an outside surface on the first side of the bone to a third terminus disposed within the bone, wherein the first cut and third cut form an intersecting angle therebetween such that an apex of the intersecting angle is formed along the third terminus.
A method for performing a high tibial osteotomy comprising:
- making a first cut in a proximal tibia in a first plane;
- making a second cut in the proximal tibia in a second plane, said first and second planes spaced apart in a proximal-distal direction such that a continuous portion of bone extending from a first side of the proximal tibia to a second side of the proximal tibia is defined between the spaced apart first and second planes, wherein said first and second cuts overlap in a medial-lateral direction;
- making a third cut in the proximal tibia in a third plane, said third plane at an angle with and intersecting one of said first and second planes, said first, second and third cuts open to a medial or lateral side of the proximal tibia;
- removing a bone wedge formed by said intersection of said third cut with said one of said first or second cuts;
- closing a wedge shaped opening formed by the removal of the bone wedge by rotating the proximal tibia about an anterior to posterior axis to open the one of said first and second cuts not intersecting with said third cut;
- and
- inserting the bone wedge into said one of said first and second bone cuts opened by the rotation about the anterior-posterior axis.
A method for performing an osteotomy procedure on a bone having a first side and a second side, comprising the steps of:
- making a first cut in the bone, the first cut extending from an outside surface on the first side of the bone and terminating at a first line disposed within the bone;
- making a second cut in the bone, the second cut extending from an outside surface on the second side of the bone and terminating at a second line disposed within the bone, wherein the second line is spaced apart from the first line along a longitudinal axis of the bone;
- and
- making a third cut in the bone, the third cut extending from an outside surface on the first side of the bone and terminating at a third line disposed within the bone, wherein the first cut and third cut form an intersecting angle therebetween such that an apex is formed along the third line;
- wherein a first pin and a second pin are inserted into the proximal tibia along the first and second lines, respectively, from the anterior cortex thereof towards the posterior cortex thereof;
- and
- wherein the formation of the first and second cuts includes using an oscillating saw and wherein the first and second pins form respective barriers to prevent the first and second cuts from extending beyond the first line and second line.
Dependencies are inferred from the claim text.