Implants for use in total ankle replacement

An implant, comprising:

• a first member;
• a second member, wherein the second member comprises:
• a first end opposite a second end;
• a first side opposite a second side;
• and
• a top surface opposite a bottom surface, the top surface comprising:
• an anterior articulating surface comprising at least a first sagittal radius comprising a first magnitude and a second sagittal radius comprising a second magnitude, wherein the first magnitude is greater than the second magnitude;
• and
• a posterior articulating surface comprising at least a third sagittal radius comprising a third magnitude and a fourth sagittal radius comprising a fourth magnitude, wherein the fourth magnitude is greater than the third magnitude, wherein the first sagittal radius and the third sagittal radius are positioned on a lateral side of the second member, and wherein the second sagittal radius and the fourth sagittal radius are positioned on a medial side of the second member;
• and
• an insert configured to couple with the first member and engage with the second member.

An implant, comprising:

• a first member, wherein the first member comprises:
• a first end opposite a second end;
• a first side opposite a second side;
• and
• a top surface of the first member opposite a bottom surface of the first member, the top surface of the first member comprising:
• an anterior articulating surface comprising:
• an anterior-medial sagittal radius;
• and
• an anterior-lateral sagittal radius, wherein the anterior-lateral sagittal radius is greater than the anterior-medial sagittal radius;
• and
• a posterior articulating surface comprising:
• a posterior-medial sagittal radius;
• and
• a posterior-lateral sagittal radius, wherein the posterior-medial sagittal radius is greater than the posterior-lateral sagittal radius;
• a second member, wherein the second member comprises:
• a first end opposite a second end;
• a first side opposite a second side;
• and
• a top surface of the second member opposite a bottom surface of the second member, the top surface of the second member comprising:
• an anterior articulating surface comprising at least one sagittal radius;
• and
• a posterior articulating surface comprising at least one sagittal radius;
• and
• an insert disposed between the first member and the second member.