Long-Term Results of Total Hip Arthroplasty in Congenital Dislocation

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and Dysplasia of the Hip. A Follow-Up Note. Garvin-Kevin-L. Bowen-Mark-K. Salvati-Eduardo-A. Ranawat-Chitranjan-S. The Journal of Bone and Joint Surgery (American Volume). 1991 Oct. 73-A(9). pp 1348-1354. AB ABSTRACT: Twenty-three of twenty-nine hips that were previously reported on were studied at an average of fourteen years (range, eight to 16.5 years) after total hip arthroplasty with cement. The original arthroplasties had been performed between November 1971 and January 1976. In all hips, there was dislocation or severe dysplasia. In six hips, superolateral bone grafts were used to increase acetabular coverage. At the latest follow-up examination, seven hips were rated excellent; nine, good; and one, fair. There were six failures (26 per cent) that were revised: four hips (17 per cent) had a fractured Trapezoidal-28 stem, one had loose femoral and acetabular components, and one had loosening of only the acetabular component. Radiographic analysis of the remaining hips revealed that one had progressive acetabular radiolucencies. This patient had an excellent clinical result. Two-thirds of the failures were due to a fractured stem. In 1979, we reported the results of twenty-nine total hip arthroplasties in twenty-two patients who had degenerative arthritis and congenital dislocation or severe congenital dysplasia *RF 10 *. The indications for the operation were severe pain or disability due to the arthritis. Patients who had arthrogryposis, spina bifida, cerebral palsy, or other neuromuscular diseases were not included in the study. As far as we know, the operation was done on all patients who were seen during that period who had dysplasia or deformity and had at least 50 per cent subluxation of the hip.