Triple Pelvic Osteotomy for Hip Dysplasia: The Akbulut-Coskun Technique Using a Modified Stoppa Approach

Area of Science:

• Orthopedic Surgery
• Pediatric Orthopedics
• Skeletal Dysplasias

Background:

• Acetabular dysplasia often requires surgical intervention.
• Triple pelvic osteotomy is effective but technically demanding.
• Tönnis periacetabular osteotomy (TPAO) with the modified Stoppa approach offers an alternative for adolescent hip dysplasia.

Purpose of the Study:

• To evaluate radiographic outcomes of TPAO using the modified Stoppa approach.
• To assess complications associated with this TPAO technique.
• To determine early functional results in adolescents with acetabular dysplasia.

Main Methods:

• Retrospective review of 16 patients (20 hips) undergoing TPAO via modified Stoppa approach.
• Radiographic assessment using lateral center-edge (CE) and Tönnis roof angles.
• Documentation of operative time, blood loss, and complications.

Main Results:

• Significant improvement in CE angle (14.7° to 35.7°) and Tönnis angle (23.3° to 7.1°).
• Mean operative time was 42.2 minutes with 167.7 mL blood loss.
• One major complication (bladder injury) reported; overall results satisfactory.

Conclusions:

• TPAO with the modified Stoppa approach provides a safe and effective treatment for adolescent hip dysplasia.
• Benefits include a single incision, potential for bilateral procedures, and preservation of abductor function.
• Satisfactory early radiographic and functional outcomes support this surgical technique.