Total replacement is certainly the most widely used model and the one with the highest probability of duration over time.
The uni-compartmental prosthesis has the advantage of being less invasive during surgery and a shorter post-operative rehabilitation period but it has limited applications, in the presence of uni-compartmental osteoarthritis without ligament injuries in non-overweight patients.
In the event that osteoarthritis only affects the patella, the use of the patellofemoral prosthesis is suggested.
Constrained prostheses are the only solution for severe instability.
Revision prostheses are used in the case of major bone loss caused by the removal of a loosened prosthesis.
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