Keywords: جراحی مغز و اعصاب; Distraction osseuse; Mandibule; Maxillaire supérieur; Crânien; Chirurgie craniofaciale; Squelette cranio-maxillo-facial; Distraction osteogenesis; Mandible; Maxilla; Cranial; Craniofacial surgery; Craniomaxillofacial skeleton;