新規骨切り術による下顎骨劣成長の治療：バラカット変法を用いた簡単な臨床研究

Mandibular deficiency correction demands precise control of both advancement and rotation to achieve optimal function and facial harmony. The Barakat modification introduces an intraoral adaptation of the inverted L osteotomy, which enables simultaneous mandibular advancement and controlled counterclockwise rotation, eliminating the need for grafting and reducing morbidity. Cephalometric evaluation demonstrated consistent forward mandibular repositioning (mean SNB increase ≈ +1 degree) accompanied by reductions in FMA (≈ -3 to -5 degrees) and gonial angle (≈ -2 to -4 degrees), confirming effective rotational control with vertical shortening. Postoperative assessments revealed a stable occlusion, accurate bony alignment, and enhanced lower facial proportions, with no complications. The Barakat modification offers a predictable, minimally invasive solution for managing mandibular deficiency, combining advancement precision with rotational control to deliver superior aesthetic and functional outcomes.