Primary total knee arthroplasty in stiff and ankylosed knees.

Abstract This study reviewed 71 patients who underwent 82 total knee arthroplasties between 1974 and 1987. All patients had severe limitations of motion preoperatively with a total preoperative arc of motion of 10 degrees. Two knees had a decreased range of motion postoperatively. Two knees with severe flexion-valgus deformities developed peroneal nerve palsies that both resolved. Total knee arthroplasty in stiff or ankylosed knees can produce good or excellent results and can lead to significant improvement in range of motion and pain.