Joint replacement arthroplasty and joint resurfacing arthroplasty implant, method of implantation, and method of using same
OwnerEduardo Gonzalez-Hernandezinventor
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Abstract
The present disclosure provides an implant, a corresponding method of implantation, and a method of using the same that can be used in orthopaedic joint replacement arthroplasty or hemiarthroplasty and/or an orthopaedic joint resurfacing arthroplasty or hemiarthroplasty. The implant can include a fin portion for receipt in a corresponding slot formed in bone, and the fin portion can support an articulation portion that can be used in resurfacing and replacing portions of articulation surfaces of a joint.
Claims20
A method of implanting an implant configured for joint replacement arthroplasty or hemiarthroplasty or configured for joint resurfacing arthroplasty or hemiarthroplasty, the method comprising:
- accessing a carpometacarpal joint through a dorsal portion of a human hand;
- positioning a portion of a guide adjacent a dorsal portion of a metacarpal of the carpometacarpal;
- using the guide to create a slot in the dorsal portion of the metacarpal extending from a position approximately halfway between a proximal end and a distal end of the metacarpal, and the proximal end of the metacarpal;
- positioning a fin portion of the implant in the slot via receipt of the fin portion through the dorsal portion of the metacarpal, and positioning an articulation portion of the implant into the carpometacarpal joint;
- positioning an articulation surface of the implant adjacent a distal portion of a carpal of the metacarpal joint;
- and
- improving function of the carpometacarpal joint via interaction between the articulation surface of the implant and a distal end of the carpal.
A method of implanting an implant configured for joint replacement arthroplasty or hemiarthroplasty or configured for joint resurfacing arthroplasty or hemiarthroplasty, the method comprising:
- accessing a carpometacarpal joint through a dorsal portion of a human hand;
- positioning a portion of a guide adjacent a dorsal portion of a metacarpal of the carpometacarpal;
- using the guide to create a slot in the dorsal portion of the metacarpal into a medullary canal of the metacarpal and extending from a position approximately halfway between a proximal end and a distal end of the metacarpal, and the proximal end of the metacarpal;
- positioning a fin portion of the implant in the slot via receipt of the fin portion through the dorsal portion of the metacarpal, positioning the distal portion of the fin portion within a portion of medullary canal behind a dorsal bone cortex of the metacarpal, and positioning an articulation portion of the implant into the carpometacarpal joint;
- and
- positioning an articulation surface of the implant adjacent a distal portion of a carpal of the metacarpal joint.
A method of implanting an implant configured for joint replacement arthroplasty or hemiarthroplasty or configured for joint resurfacing arthroplasty or hemiarthroplasty, the method comprising:
- accessing a carpometacarpal joint through a dorsal portion of a human hand;
- selecting from a selection of differently-sized guides, a guide that best fits anatomies of the carpometacarpal joint and the metacarpal;
- positioning a portion of the selected guide adjacent a dorsal portion of a metacarpal of the carpometacarpal;
- using the guide to create a slot in the dorsal portion of the metacarpal into a medullary canal of the metacarpal and extending from a position approximately halfway between a proximal end and a distal end of the metacarpal, and the proximal end of the metacarpal;
- selecting from a selection of differently-sized implants, the implant that best fits anatomies of the carpometacarpal joint and the metacarpal;
- positioning a fin portion of the implant in the slot via receipt of the fin portion through the dorsal portion of the metacarpal, positioning the distal portion of the fin portion within a portion of medullary canal behind a dorsal bone cortex of the metacarpal, and positioning an articulation portion of the implant into the carpometacarpal joint;
- and
- positioning an articulation surface of the implant adjacent a distal portion of a carpal of the metacarpal joint.
Dependencies are inferred from the claim text.