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  • Title: Pemberton pericapsular osteotomy to treat a dysplastic hip in cerebral palsy.
    Author: Shea KG, Coleman SS, Carroll K, Stevens P, Van Boerum DH.
    Journal: J Bone Joint Surg Am; 1997 Sep; 79(9):1342-51. PubMed ID: 9314396.
    Abstract:
    We reviewed the results of Pemberton pericapsular osteotomy in nineteen hips (fifteen patients) that were subluxated (fifteen hips) or dislocated (two hips) or had severe acetabular dysplasia (two hips) secondary to spastic cerebral palsy. At least one concomitant procedure was performed in fifteen hips. These procedures included an intertrochanteric osteotomy to correct excessive femoral anteversion or valgus deformity of the neck-shaft angle (thirteen hips), a soft-tissue release (nine hips), and an open reduction (three hips). Four hips had no concomitant procedure. Five of the nineteen hips were painful preoperatively. The average age of the patients at the time of the index operation was seven years and nine months (range, three years and five months to twelve years and three months). The average duration of follow-up was ten years and nine months (range, three years and one month to nineteen years and nine months). All osteotomy sites healed without complications. At the latest follow-up examination, all of the hips were pain-free and satisfactorily reduced and none of the patients had deterioration in function. The average center-edge angle was -5 degrees (range, -45 to 18 degrees) preoperatively and 38 degrees (range, 17 to 53 degrees) at the latest follow-up examination. The average migration index of Reimers was 55 per cent (range, 30 to 100 per cent) preoperatively compared with 12 per cent (range, 0 to 46 per cent) at the latest follow-up examination. Sixteen of the nineteen hips were followed until closure of the triradiate cartilage. There were no instances of posterior uncovering or osteonecrosis of the femoral head or premature closure of the triradiate physeal cartilage leading to deficient acetabular coverage. Our results suggest that good clinical and radiographic results can be achieved with the Pemberton pericapsular osteotomy, with simultaneous intertrochanteric osteotomy and soft-tissue release when indicated, as treatment for subluxation or dislocation of the hip or acetabular dysplasia in cerebral palsy.
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