Cementless total hip arthroplasty for haemophilic arthropathy: follow-up result of more than 10 years

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The improvement of prophylaxis and adequate replacement of clotting factors, the quality of life and natural history of haemophilia have been significantly improved. However, significant functional impairment is inevitable. This study was performed to evaluate over 10 years clinical and radiographic outcomes of cementless total hip arthroplasty (THA) for treatment of haemophilic hip arthropathy. Between 1995 and 2003, 27cases of cementless total hip arthroplasties were performed in 23 haemophilic patients. A total of 21 cases from 17 patients were available for follow-up analysis over 10 years. Modified Harris hip score, the range of motion of the hip joint, perioperative coagulation factor requirements and complications associated with bleeding were evaluated as part of the clinical assessment. For the radiographic assessment, fixation of component, osteolysis, loosening and other complications were evaluated. Clinically, the mean Harris hip score improved from 57 points before the operation to 94 points at the last follow-up. The mean flexion contracture was 10° preoperatively and 0.9° at the final follow-up. The further flexion improved from 68.4° to 90.5° after surgery. The mean monthly requirement of factor VIII reduced from 3150 units before surgery to 1800 units at the time of the last follow-up. There were three cases of rebleeding. In one case, a progressive haemophilic pseudotumour was found. Reoperation for any reason including revision was performed in three cases. We believe that cementless THA in patient with haemophilic hip arthropathy can bring reliable pain relief and functional improvement for longer than 10 years.

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