Ankle Replacement Devices and Methods of Making and Using the Same

An ankle replacement device comprising:

• (I) a first bone-engaging component operatively adapted to engage with a first bone, and comprising (1) a first base member comprising (a) a lower surface, said lower surface having an lower surface profile comprising (i) a lower surface portion surrounded by a lower surface periphery, and (ii) a lower surface depression surrounded by said lower surface portion, said lower surface depression having a dome-shaped configuration with a depression depth, dd, and a depression surface area extending along said lower surface portion, (b) a base member upper surface, and (c) at least one base member bracket side wall extending upward from said base member upper surface;
• and (2) a first bone attachment component sized and operatively adapted to be attached to the first bone, said first bone attachment component comprising a first component base, a first component base lower surface, a first component base upper surface, and at least one first component protruding member extending upward from said first component base upper surface, said first component base lower surface comprising an engaging groove therein, and said base member upper surface comprising a corresponding engaging member extending along said base member upper surface, said engaging groove and said corresponding engaging member being engagable with one another so as to engage said first bone attachment component with said first base member;
• and
• (II) a second bone-engaging component operatively adapted to engage with a second bone, and comprising an upper surface, said upper surface having an upper surface profile comprising (i) an upper surface portion surrounded by an outer periphery, and (ii) an upper surface structure surrounded by said outer periphery, said upper surface structure having a dome-shaped configuration with a structure height, hs, extending above said outer periphery and a structure surface area extending along said upper surface portion;
• said first bone-engaging component being engagable with said second bone-engaging component so that (i) at least a portion of said upper surface structure is positionable within said lower surface depression, and (ii) when said portion of said upper surface structure is positioned within said lower surface depression, said upper surface portion is movable relative to said lower surface portion.

An ankle replacement device comprising:

• (I) a first bone-engaging component operatively adapted to engage with a first bone, and comprising a first base member comprising a lower surface, said lower surface having an lower surface profile comprising (i) a lower surface portion surrounded by a lower surface periphery, and (ii) a lower surface depression surrounded by said lower surface portion, said lower surface depression having a dome-shaped configuration with a depression depth, dd, and a depression surface area extending along said lower surface portion;
• and
• (II) a second bone-engaging component operatively adapted to engage with a second bone, and comprising an upper surface, said upper surface having an upper surface profile comprising (i) an upper surface portion surrounded by an outer periphery, and (ii) an upper surface structure surrounded by said outer periphery, said upper surface structure having a dome-shaped configuration with a structure height, hs, extending above said outer periphery and a structure surface area extending along said upper surface portion;
• said first bone-engaging component being engagable with said second bone-engaging component so that (i) at least a portion of said upper surface structure is positionable within said lower surface depression, and (ii) when said portion of said upper surface structure is positioned within said lower surface depression, said upper surface portion is movable relative to said lower surface portion;
• wherein said upper surface structure comprises (1) at least two grooves separated from one another and extending in a front to rear direction along said upper surface, (2) a centrally-located track portion between said at least two grooves, and (3) outer track portions on opposite outer portions of said upper surface;
• and said lower surface depression of said first base member comprises (1) at least two rails separated from one another and extending in said front to rear direction along said lower surface depression so as to engagable with said at least two grooves, (2) a centrally-located depression portion between at least two rails so as to contact/engage with said centrally-located track portion, and (3) outer depression portions on opposite outer portions of said lower surface depression.