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US 2011/0218540 A1Published application
Method and Apparatus for Performing An Open Wedge Osteotomy
OwnerKelly G. Ammann, Vincent P. Novak +2inventors
InventorsKelly G. Ammann, Vincent P. Novak, Robert E. Schneider, Ralph E. Burns
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Abstract
A method and apparatus for performing an open wedge osteotomy utilizing a keyed, wedge-shaped implant for disposition in a keyed, wedge-shaped opening created in a bone. The keys may be disposed in vertical or horizontal arrangements. In addition, a shear rib key hole may be formed adjacent the wedge-shaped opening in the bone.
Claims30
A method for performing an open wedge osteotomy comprising:
- cutting a bone along a cutting plane to form a cut, with the cut terminating at a boundary line;
- forming at least two keyholes in the tibia adjacent to the cut, wherein the two keyholes are laterally offset from one another;
- moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone;
- and
- positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least two keys, laterally offset from one another, and further wherein the at least two keys are disposed in the at least two keyholes formed in the tibia.
2 more elements
A method for performing an open wedge osteotomy comprising:
- cutting a bone along a cutting plane to form a cut, with the cut terminating at a boundary line;
- forming at least two keyholes in the tibia adjacent to the cut, wherein the two keyholes are vertically offset from one another;
- forming a shear rib keyhole in the tibia adjacent to the cut, wherein the shear rib keyhole is laterally offset from the at least two keyholes;
- moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone;
- and
- positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least two keys, vertically offset from one another, and a shear rib, laterally offset from the at least two keys, and further wherein the at least two keys are disposed in the at least two keyholes formed in the tibia, and the shear rib is disposed in the shear rib keyhole formed in the tibia.
3 more elements
Dependencies are inferred from the claim text.