Paragraph Number

10

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. The bone tunnel may include a proximal opening near a dorsal surface of the metatarsal bone. The bone anchor sits within the bone tunnel and within the proximal opening and the bone anchor may include: a cylindrical body may include an opening that extends from one end of the cylindrical body to the other end and external threads on an outside surface of the cylindrical body, the external threads configured to engage an internal surface of the bone tunnel, and a tether locking feature configured to sit within the opening of the cylindrical body and couple a proximal end of the tether to the bone anchor. The arthroplasty implant may seat within the bone pocket such that a top of the joint-facing articular surface is congruent with or below a surface of surrounding cartilage of the distal articular surface and the edge is below the surface of surrounding cartilage when the tether couples the arthroplasty implant to the bone anchor.

Added by DJM 2 2022