OBJECTIVE: To evaluate potential prognostic factors that would indicate an unsatisfactory treatment evolution of hip sub-dislocation and/or spastic dislocation in patients with Brain Palsy submitted to surgical reconstruction, upon soft parts, adductors and iliopsoas release, and Dega’s pelvic osteotomy combined to outer-rotation and shortening varusing sub-trochanteric femoral osteotomy. CASE SERIES AND METHODS: 58 patients (78 hips) with sub-dislocation/ spastic dislocation submitted to surgical reconstruction were retrospectively assessed, both clinically and by X-ray studies, from October 1994 to August 2005. The minimum follow-up time was 12 months and the average was 53.6 months. Hips were classified into satisfactory and unsatisfactory according to the analysis of late postoperative acetabular index (AI) and Reimers index (RI). The following variables were statistically analyzed: patient’s age at surgery time, postoperative follow-up period, and AI, RI X-ray parameters, cervicodiaphyseal angle (CD) at preoperative, early postoperative and late postoperative periods. RESULTS: From the 78 hips assessed, 13 were classified as unsatisfactory because they presented a late postoperative AI higher or equal to 20 degrees, and a late postoperative RI higher or equal to 25%, and, after the statistical analysis of data, significance was reported only at early postoperative AI, late postoperative AI, late postoperative RI, and late postoperative CD. CONCLUSION: There is no variable that can predict an unsatisfactory postoperative evolution on joint reconstruction in cases of hip sub-dislocation and/ or spastic dislocation, but it was evidenced that stronger efforts must be employed when correcting the acetabular index during a surgical procedure.
Cerebral palsy; Hip dislocation; Osteotomy
