Replacement arthroplasty and joint resurfacing arthroplasty implant with non-stemmed fixation, 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 first fin portion and a second fin portion for receipt in a first slot and a second slot, respectively formed in bone, and the first fin portion and the second 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 radiocarpal joint through a dorsal portion of a human wrist;
- positioning a portion of a guide adjacent a dorsal portion of a distal portion of a radius of the radiocarpal joint;
- using the guide to create a first slot in the distal portion of the radius that extends from a distal end of the radius toward a proximal end of the radius;
- using the guide to create a second slot in the distal portion of the radius adjacent the first slot that extends from the distal end of the radius toward the proximal end of the radius
- positioning a first fin portion of the implant in the first slot, positioning a second fin portion of the implant in the second slot, and positioning an articulation portion of the implant into the radiocarpal joint, the first fin portion and the second fin portion extending outwardly from the articulation portion;
- positioning an articulation surface of the articulation portion adjacent the distal end of the radius;
- and
- improving function of the radiocarpal joint via interaction between the articulation surface of the articulation portion and proximal portions of one or more carpals adjacent the radiocarpal 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 radiocarpal joint through a dorsal portion of a human wrist;
- positioning a first fin portion of the implant in a first slot formed in a distal portion of a radius, positioning a second fin portion of the implant in a second slot formed in the distal portion of the radius, and positioning an articulation portion of the implant into a radiocarpal joint corresponding to the radius, the first fin portion and the second fin portion extending outwardly from the articulation portion;
- positioning an articulation surface of the articulation portion adjacent the distal end of the radius;
- inserting a bone screw through an aperture formed in an end portion attached to the first fin portion and into the radius, the end portion being attached to the first fin portion opposite from the articulation portion;
- and
- improving function of the radiocarpal joint via interaction between the articulation surface of the articulation portion and proximal portions of one or more carpals adjacent the radiocarpal joint.
An implant configured for joint replacement arthroplasty or hemiarthroplasty or configured for joint resurfacing arthroplasty or hemiarthroplasty, the implant comprising:
- an articulation portion having an articulation surface and an opposite undersurface;
- a first fin portion extending outwardly from the undersurface;
- a second fin portion extending outwardly from the undersurface;
- and
- a first end portion attached to the first fin portion opposite from the undersurface, the first end portion including an aperture therethrough facilitating receipt of an bone screw;
- wherein the first fin portion and the second fin portion are configured to fit in a first slot and a second slot, respectively, formed in a distal portion of a radius, and the articulation surface is configured to form portions of a radiocarpal joint to improve function thereof.
Dependencies are inferred from the claim text.