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

Claim 11:
12. The arthroplasty system of claim 11, further comprising:
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 comprises:
an interior surface that defines a cavity; and
a pin extending medial-laterally across the cavity, the pin comprising the first constraint feature; and

the first constraint feature comprises a hole that receives the pin to define a hinge about which the first tibial arthroplasty prosthesis is rotatable relative to the femoral arthroplasty prosthesis.