OBJECTIVE: To evaluate the clinical and radiographic findings observed after surgical treatment of patients with developmental coxa vara (DCV) and review its epidemiology and natural history. METHOD: We selected 19 patients (26 hips) with DCVthat underwent subtrochanteric osteotomy with a mean follow-up period of four years and ten months and a minimum of 12 months of follow-up. We analyzed the range of motion of the hips, the Trendelenburg sign, and the discrepancy of the length of the lower limbs.In the radiographic evaluation, we measured the epiphyseal-diaphyseal (ED) angle and articulo-trochanteric distance (ATD) at different times. RESULTS: We observed an average increase of 21° in the amplitude of hip abduction, as well as the disappearance of theTrendelenburg sign. In assessing the length discrepancy, 72.2% of the 18 patients studied were equalized, witha residual difference of up to 0.5cm between the limbs. The rangeof the ATD showed an average of -0.34 cm in the preoperative period, 2.18 cm in the immediate postoperative period, and 1.35 cm in the last evaluation.The ED angle had an average valueof 91° preoperatively, 142° in the immediate postoperative period, and 133° in the last evaluation. CONCLUSION: The subtrochanteric valgus osteotomy, leading to epiphyseal-diaphyseal angles close to 140°, was effective in the correction of deformitiesover time.
Hip; Femur; Claudication; Child
