The Copeland RHHI causes significantly increased LGHO and leads to overstuffing in the shoulder joint. The WOOS score in the cohort was comparable to that for all other Danish patients operated with a Copeland RHHI.
A 2.9-year follow up of 50 primary Bi-Metric System cementless, porous-coated hip arthroplasties (Biomet) is presented. Four patients were operated bilaterally. In two patients, revision arthroplasty was carried out, in one because of infection, in the other because of loosening of the stem. The average Harris hip score was 96 points. The pain level according to d'Aubigné was 5.87. All patients belonged to Jensen's social function group 1. According to Engh's x-ray score, the femoral component achieved an average total of 19 points. Twenty-three patients with heterotopic ossification were graded according to Brooker et al; 18 patients belonged to group ?-?, and 5 patients to group ?1. Discrepancy of leg length was measured in 20 patients, and averaged 0.52 cm (range: 0 cm to 2.5 cm). Four patients complained of thigh pain, but they had no radiographic evidence of loosening of components. The mean age was 63.4 years for women and 58.1 for men. Acceptably high Harris Hip Scores were obtained for the Bi-Metric hip prosthesis at 2-year follow up.
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