Cementless total hip arthroplasty performed in patients with pigmented villonodular synovitis.

The authors retrospectively reviewed all patients with pigmented villonodular synovitis (PVNS) of the hip treated by cementless total hip arthroplasty (THA) combined with synovectomy. Eight patients were reviewed and observed for an average of 8.9 years (range, 4.3-13.5 years). Mean preoperative Harris hip scores improved from 49.3 to 96.6 points, and all patients were able to regularly perform moderate daily living activities. None of the patients had clinical or radiographic evidence of recurrent PVNS. Osteolysis occurred in 4 hips, and 2 revision surgeries were performed during follow-up. Cementless THA combined with synovectomy is an adequate therapeutic choice for patients with PVNS demonstrating end-stage joint destruction and appears to be effective at improving clinical results and preventing disease recurrence.