Cleft Lip and Palate: LeFort I Distraction with Halo and Hybrid Internal Maxillary Distractors

Abstract

Distraction osteogenesis is a viable treatment option for patients with a cleft associated with severe maxillary retrusion. A rigid external distraction device and a hybrid internal maxillary distractor have been used to advance the maxilla allowing for predictable and stable results. These techniques can be applied by itself or as an adjunct to traditional orthognathic procedures. The technical aspects are presented. These procedures tend to be simpler and demonstrate great stability compared to traditional surgical methods. The reasons for stability are discussed.

Keywords: Cleft maxillary hypoplasia; Distraction osteogenesis; Hybrid distractors; Internal distraction; Le Fort I; Maxillary advancement; Rigid external distraction.