Abstract
Despite the popularity of total hip arthroplasty, clinical indications for cup arthroplasty still exist in younger patients with severe coxarthritis. Cup arthroplasty has been successfully used in the treatment of hip disease for fifteen years, especially in pain control.
Total hip arthroplasties were performed for nine patients, mean fifteen years after cup arthroplasties. The two diagnostic categories were four patients with degenerative coxarthritis and five patients with rheumatoid arthritis. The clinical results of the patients were evaluated with the use of the Japanese Orthopaedic Association's score (JOA score). We also reviewed the radiographic findings, the pathological changes of their femoral heads, operative times and bleeding volumes in total hip arthroplasties.
The mean individual score for pain was improved by cup arthroplasty and total hip arthroplasty, but the improvements of range of motion, gait, and activity of daily life were not sufficient.
