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8.The system of claim 6, wherein: |
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the joint-facing articular surface is convex; |
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the edge is circular; and |
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the convex posterior surface has an implant radius great than a bone radius of the bone pocket. |
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9.The system of claim 1, wherein the transosseous coupler comprises a tether configured to engage with a first connector coupled to the implant and configured to engage with a second connector coupled to the bone anchor. |
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10. An arthroplasty implant system comprising: |
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an arthroplasty implant configured to engage a distal articular surface of a metatarsal bone; |
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a bone anchor secured to the metatarsal bone away from the distal articular surface; and |
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a tether configured to couple the arthroplasty implant and the bone anchor. |
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11.The arthroplasty implant system of claim 10, wherein the arthroplasty implant comprises: |
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an articular implant; and |
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wherein the articular implant is embedded within a bone pocket of the distal articular surface when the tether couples the articular implant to the bone anchor such that bone pocket retains the articular implant in place during osseointegration of the articular implant to the metatarsal bone. |
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12.The arthroplasty implant system of claim 10, wherein the arthroplasty implant comprises a spacer configured to maintain separation between the distal articular surface and an articular surface of an adjacent phalanx bone. |
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13.The arthroplasty implant system of claim 10, the arthroplasty implant comprising: |
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a body comprising a joint-facing articular surface and a convex posterior surface configured to engage the distal articular surface by way of a bone pocket formed within the distal articular surface; |
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an edge between the joint-facing articular surface and the convex posterior surface; and |
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a connector configured to engage with the tether and secure the arthroplasty implant to the tether. |
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14.The arthroplasty implant system of claim 13, wherein the tether couples the arthroplasty implant to the bone anchor through a bone tunnel that extends from the bone pocket such that when the tether couples the arthroplasty implant to the bone anchor at least a portion of the edge contacts a surface of the bone pocket below the distal articular surface. |
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15.The arthroplasty implant system of claim 14, wherein the bone tunnel comprises a proximal opening near a dorsal surface of the metatarsal bone. |
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16.The arthroplasty implant system of claim 15, wherein the bone anchor sits within the bone tunnel and within the proximal opening and wherein the bone anchor comprises: |
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