Mid-foot Arthroplasty Devices, Systems, and Methods for Treating Mid-Foot Disorders
Devices, systems and methods for surgical treatment of mid-foot disorders such as osteoarthritis, spacing disorders, or alignment disorders, including mid-foot arthroplasty devices and systems for the 2 nd and 3 rd tarsometatarsal (TMT) joint, implants for post-osteotomy spacing and realignment, arthroplasty articular implants, dowel grafts for TMT arthrodesis or fusion, dowel grafts for navicular cuneiform (NC) arthrodesis, dowel grafts for intercuneiform arthrodesis, and/or locking dowels for joint fusion.
1 . A mid-foot arthroplasty system, comprising an insert implant configured to be joined to an articular surface of a resected bone, the insert implant comprising one of ceramic on metal or metal on ceramic.
2 . The mid-foot arthroplasty system of claim 1 , wherein the insert implant further comprises an articular section, an osteo-interface section, and a projection extending from the osteo-interface section.
3 . The mid-foot arthroplasty system of claim 2 , wherein the articular section further comprises a substantially planar surface configured to articulate with an adjacent bone.
4 . The mid-foot arthroplasty system of claim 3 , wherein the articular section further comprises one of ceramic or metal.
5 . The mid-foot arthroplasty system of claim 4 , wherein the osteo-interface section further comprises a surface configured to interface with an opposing articular surface of an adjacent bone.
6 . The mid-foot arthroplasty system of claim 4 , wherein the osteo-interface section further comprises one of ceramic or metal and is selected to be different than the articular surface.
7 . The mid-foot arthroplasty system of claim 5 , wherein the projection is configured to mate with a recess formed in bone tissue and retain the insert implant in a fixed position within the bone tissue.
8 . The mid-foot arthroplasty system of claim 7 , wherein the projection is elongate and extends from a dorsal to a plantar surface of the insert implant.
9 . The mid-foot arthroplasty system of claim 8 , wherein the projection further comprises a same material as the osteo-interface section.
10 . A method of implanting the mid-foot arthroplasty system of claim 1 , comprising the step of implanting the insert implant to at least one of the tarsometatarsal joint or the metartasalphalangeal joint by a dorsal surgical approach to the respective joints.
11 . A method of implanting the mid-foot arthroplasty system of claim 1 , comprising the step of implanting the insert implant to a subtalar joint by a medial/lateral/posterior surgical approach.
12 . A method of implanting the mid-foot arthroplasty system of claim 1 , comprising the step of implanting the insert implant to the calcaneocuboid joint by a dorsal/lateral surgical approach.
13 . A method of implanting the mid-foot arthroplasty system of claim 1 , comprising the step of implanting the insert implant to at least one of the navicular cuneiform joint or talon-navicular joint by a dorsal/medial surgical approach to the respective joints.
14 . A mid-foot arthroplasty implant comprising an articular surface, an osteo-interface surface, and a projection extending outward from the osteo-interface surface and extending from a dorsal to a plantar surface of the implant.
15 . The mid-foot arthroplasty implant according to claim 14 , wherein the articular surface and the osteo-interface surface are made of ceramic on metal or metal on ceramic.
16 . The mid-foot arthroplasty implant according to claim 14 , wherein the articular surface is configured to articulate with an articular surface of an adjacent bone.
17 . The mid-foot arthroplasty implant according to claim 16 , wherein the osteo-interface surface is configured to fixedly seat within a mating recess in bone tissue.
18 . The mid-foot arthroplasty implant according to claim 15 , wherein the projection is made of the same material as the osteo-interface surface.
19 . The mid-foot arthroplasty implant according to claim 14 , wherein the articular surface and the osteo-interface surface are fixedly joined to one another.