Introduction: Pemberton’s pericapsular osteotomy is an alternative for the surgical treatment of developmental dysplasia of the hip. Spica cast immobilization is used in the immediate postoperative period. However, an abduction brace is an option that decreases complications associated with plaster and surgical time. Methodology: Descriptive observational case series study from 2007 to 2013. Fifteen patients met inclusion criteria such as developmental dysplasia of the hip, age range 18 months to 5 years, underwent Pemberton’s pericapsular osteotomy and immediate postoperative immobilization was performed with an abduction brace. Preoperative, immediate postoperative and 6 months X-rays were performed. Clinical follow-up at 6 months and evaluation of satisfaction patient caregivers were applied. Results: Fifteen patients met inclusion criteria. Two were male and thirteen female. Average age was 36.3 months. Average Acetabular index (AI) preoperatively: 30.9 °; immediate postoperative: 16° and at 6 months postoperatively: 19.5°. Arcs of motion were within normal ranges after surgery. Satisfaction of parents reported as «very satisfactory» in all cases. Discussion: The use of abductor brace as immediate post-operative immobilization after Pemberton’s pericapsular osteotomy in patients with developmental hip dysplasia is a low-risk intervention, offering an alternative of immobilization in the postoperative management and protecting the stability of the bone graft. Moreover, in the case series presented, Acetabular index values reached the normal. In addition, it avoids complications associated with the use of spica cast and reduces surgical time by subtracting the time involved in its implementation.