Patent ID: 11890198
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An arthroplasty system for a knee joint between a femur and a tibia, the system comprising:
a femoral arthroplasty prosthesis configured to be fixed to the femur, the femoral arthroplasty prosthesis comprising a receptacle;
a first adapter configured to be fixed within the receptacle, the first adapter comprising a first constraint feature;
a first tibial arthroplasty prosthesis configured to be fixed to the tibia such that the first tibial prosthesis articulates with the femoral arthroplasty prosthesis, the first tibial arthroplasty prosthesis comprising a second constraint feature that engages the first constraint feature to constrain motion of the knee to a first range of motion;
a second adapter configured to be fixed within the receptacle, the second adapter comprising a third constraint feature; and
a second tibial arthroplasty prosthesis configured to be fixed to the tibia such that the second tibial prosthesis articulates with the femoral arthroplasty prosthesis, the second tibial arthroplasty prosthesis comprising a fourth constraint feature that engages the third constraint feature to constrain motion of the knee to a second range of motion more restrictive than the first range of motion;
wherein the first adapter is configured to be inserted into the receptacle along an anterior direction generally perpendicular to a mechanical axis of the femur.