Method and apparatus for wrist arthroplasty
AssigneeBiomet Manufacturing, LLC
InventorsJason M. Shultz, Kevin T. Stone, Andrew K. Palmer
Life of this patent
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Abstract
A method of implanting a prosthesis relative to a carpal complex of a wrist is provided. The method can include providing a carpal implant having a body including an ulnar flange and a radial flange, and locating a bone abutment surface of the ulnar flange against a triquetrum of the carpal complex. The method can also include locating a bone abutment surface of the radial flange against a scaphoid of the carpal complex, and locating a first dorsal flange extending from the ulnar flange against a posterior surface of the triquetrum.
Claims17
A method of implanting a prosthesis relative to a carpal complex of a wrist comprising:
- providing a carpal implant having a body and including a bone abutment surface and at least one flange extending from the bone abutment surface;
- resurfacing at least portions of identified bones of the carpal complex including at least one of a scaphoid, lunate and triquetrum;
- locating the bone abutment surface of the carpal implant against the resurfaced portions of the identified bones;
- locating a first flange of the at least one flange against the carpal complex;
- advancing a first bone screw through a first aperture in the body into one of the identified bones;
- advancing a second bone screw through a second aperture in the first flange and into a first bone of the identified bones;
- advancing a third bone screw through a third aperture in the first flange and into a second bone of the identified bones, the second bone being distinct from the first bone;
- and
- bending at least one flange extending from an ulnar or radial portion of the body relative to a remainder of the body to a position against a medial or lateral face of the identified bones.
A method of implanting a prosthesis relative to a carpal complex of a wrist comprising:
- providing a carpal implant having a body and including a bone abutment surface and at least one flange extending from the bone abutment surface;
- resurfacing at least portions of identified bones of the carpal complex including at least one of a scaphoid, lunate and triquetrum;
- locating the bone abutment surface of the carpal implant against the resurfaced portions of the identified bones;
- locating a first flange of the at least one flange against the carpal complex;
- advancing a first bone screw through a first aperture in the body into one of the identified bones;
- advancing a second bone screw through a second aperture in the first flange and into a first bone of the identified bones;
- and advancing a third bone screw through a third aperture in the first flange and into a second bone of the identified bones, the second bone being distinct from the first bone;
- and
- bending a supplemental ulnar flange portion to a position against the triquetrum;
- and
- bending a supplemental radial flange portion to a position against a trapezium of the carpal complex.
A method of implanting a prosthesis relative to a carpal complex of a wrist comprising:
- providing a carpal implant having a body including an ulnar flange and a radial flange;
- locating a bone abutment surface of the ulnar flange against a triquetrum of the carpal complex;
- locating a bone abutment surface of the radial flange against a scaphoid of the carpal complex;
- and
- locating a first dorsal flange extending from the ulnar flange against a posterior surface of the triquetrum;
- and bending a supplemental ulnar flange portion to a position against the triquetrum;
- and bending a supplemental radial flange portion to a position against a trapezium of the carpal complex.
A method of implanting a prosthesis relative to a carpal complex of a wrist comprising:
- providing a carpal implant having a body including a first flange at a medial end and a second flange at a lateral end;
- resurfacing at least portions of identified bones of the carpal complex including at least one of a scaphoid, lunate and triquetrum;
- locating a bone abutment surface of the first flange against the resurfaced portion of a first one of the identified bones;
- locating a bone abutment surface of the second flange against the resurfaced portion of a second one of the identified bones;
- locating a first dorsal flange extending from the first flange against the first one of the identified bones;
- locating a second dorsal flange extending from the second flange against the second one of the identified bones;
- locating a third dorsal flange extending from the body between the first flange and the second flange against a third one of the identified bones;
- and
- coupling the carpal implant to a wrist bearing component;
- and bending a first supplemental flange portion extending from the first flange at the medial end to a position against a medial face of a bone of the carpal complex;
- and bending a second supplemental flange portion extending from the second flange at the lateral end to a position against a lateral face of a bone of the carpal complex.
Dependencies are inferred from the claim text.