A retrospective clinical and roentgenographic review was performed on 69 consecutive cementless total hip arthroplasties that had been in situ for an average of 64.4 months (range, 57-91 months). Four patients had bilateral operations. There were 23 men and 42 women. The Lord Madreporic prosthesis (Bacneux, France) was used in 49 cases, and the Link prosthesis (Waldemar Link, Hamburg, Germany) was used in 20 cases. Preoperative diagnoses were osteoarthritis (76.8%), rheumatoid arthritis (17.4%), and miscellaneous (5.8%). At the final follow-up examination, the median hip score, assessed according to a modification of the Mayo scoring system, was 86.7 points. Seventy-eight percent of the cases had a good result, 11% were fair, and 4.7% were poor. The overall revision rate was 6.3%. No significant correlation existed between the roentgenographic and clinical findings. Subsidence of the femoral component is not a definitive hallmark of loosening in the midrange interval, that is, between 2 and 5 years. The cementless hip arthroplasty is suitable for patients with rheumatoid arthritis.
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