We evaluated the results of 330 total hip arthroplasties that were performed with use of the Charnley prosthesis and cement in 262 patients by the senior one of us between July 1970 and April 1972. All hips had been thoroughly assessed preoperatively to document the patient's functional level. All patients had been disabled because of pain in the hip or a fracture of the hip, and 212 patients (81 per cent) had used walking aids. At a minimum of 20 years after the index operation, 83 patients (98 hips) were still living, 174 patients (224 hips) had died, and 5 patients (8 hips) had been lost to follow-up. The outcome of the arthroplasty was determined for all except the 5 latter patients. Thus, the outcome of 322 (98 per cent) of the 330 arthroplasties was known at the latest follow-up evaluation. Radiographs were available for 63 of the 83 patients (76 [78 per cent] of the 98 hips) who were alive for the entire follow-up period. Of the 98 hips in the living patients, 83 (85 per cent) caused no pain, 14 (14 per cent) caused mild pain, and one (1 per cent) caused moderate pain. 52 hips (53 per cent) were in patients who did not use walking aids, and only 7 (7 per cent) were in patients who used support for walking because of the hip. At the minimum 20-year follow-up, 32 (10 per cent) of the 322 hips that had been followed had been revised: 8 (2 per cent), because of loosening with infection; 21 (7 per cent), because of aseptic loosening; and 3 (1 per cent), because of dislocation. Of the 98 hips of the patients who were still alive, 15 (15 per cent) had been revised: 3 (3 per cent), because of loosening with infection; 11 (11 per cent), because of aseptic loosening; and one (1 per cent), because of dislocation. The rate of revision due to aseptic loosening of the acetabular component in all 322 hips was 6 per cent (18 hips), while in the 98 hips of the patients who were alive at least 20 years after the arthroplasty, it was 10 per cent (10 hips). The rate of revision because of aseptic loosening of the femoral component in all 322 hips was 2 per cent (8 hips), while in the 98 hips of the living patients, it was 3 per cent (3 hips).(ABSTRACT TRUNCATED AT 400 WORDS)
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We evaluated the results of 330 total hip arthroplasties that were performed with use of the Charnley prosthesis and cement in 262 patients by the senior one of us between July 1970 and April 1972. All hips had been thoroughly assessed preoperatively to document the patient's functional level. All patients had been disabled because of pain in the hip or a fracture of the hip, and 212 patients (81 per cent) had used walking aids. At a minimum of 20 years after the index operation, 83 patients (98 hips) were still living, 174 patients (224 hips) had died, and 5 patients (8 hips) had been lost to follow-up. The outcome of the arthroplasty was determined for all except the 5 latter patients. Thus, the outcome of 322 (98 per cent) of the 330 arthroplasties was known at the latest follow-up evaluation. Radiographs were available for 63 of the 83 patients (76 [78 per cent] of the 98 hips) who were alive for the entire follow-up period. Of the 98 hips in the living patients, 83 (85 per cent) caused no pain, 14 (14 per cent) caused mild pain, and one (1 per cent) caused moderate pain. 52 hips (53 per cent) were in patients who did not use walking aids, and only 7 (7 per cent) were in patients who used support for walking because of the hip. At the minimum 20-year follow-up, 32 (10 per cent) of the 322 hips that had been followed had been revised: 8 (2 per cent), because of loosening with infection; 21 (7 per cent), because of aseptic loosening; and 3 (1 per cent), because of dislocation. Of the 98 hips of the patients who were still alive, 15 (15 per cent) had been revised: 3 (3 per cent), because of loosening with infection; 11 (11 per cent), because of aseptic loosening; and one (1 per cent), because of dislocation. The rate of revision due to aseptic loosening of the acetabular component in all 322 hips was 6 per cent (18 hips), while in the 98 hips of the patients who were alive at least 20 years after the arthroplasty, it was 10 per cent (10 hips). The rate of revision because of aseptic loosening of the femoral component in all 322 hips was 2 per cent (8 hips), while in the 98 hips of the living patients, it was 3 per cent (3 hips).(ABSTRACT TRUNCATED AT 400 WORDS)
Copyright remains with the authors and publisher.