Knee arthroplasty in hemophilia. 5-12 year follow-up of 15 patients.

Between 1979 and 1987, 15 knee arthroplasties were performed in 15 Norwegians with congenital disorders of blood coagulation. 10 patients with a median follow-up of 7 (5-12) years had an almost painless joint, without hemorrhage. Flexion contractures were corrected, but total range of motion was not improved. There was a radiolucent zone at the bone-cement interphase of the tibial stem in 2 knees. The placement of the implants was correct and the alignment not changed. There were no fractures. 1 prosthesis had been removed because of a chronic infection. 4 patients had died. We conclude that arthroplasty can be safely performed with excellent relief of pain and improvement of function in patients with congenital disorders of blood coagulation.

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