Unicondylar knee arthroplasty in a patient with poliomyelitis.

Osteoarthritis in patients who have had poliomyelitis creates a significant challenge. The loss, or reduction of power in the quadriceps, combined with recurvatum and often patella baja can cause problems when considering total knee arthroplasty. The authors present the first case report of a unicondylar knee arthroplasty in such a patient. Functional knee scores improved, although some persistent degree of disability remained due to the preexisting poor muscle power.