Long term stability of mandibular advancement procedures: bilateral sagittal split osteotomy versus distraction osteogenesis

• Published in: International journal of oral and maxillofacial surgery 2012-02, Vol.41 (2), p.137-141
• Main Authors: Baas, E.M, Pijpe, J, de Lange, J
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Biological and medical sciences; Bone Plates; Bone Screws; Cephalometry - methods; Dentistry; distraction osteogenesis; Female; Follow-Up Studies; Fundamental and applied biological sciences. Psychology; Humans; Longitudinal Studies; Male; Mandible - pathology; Mandible - surgery; mandibular advancement; Mandibular Advancement - methods; mandibular distraction; mandibular retrognathia; Medical sciences; Nasal Bone - pathology; Orthopedic surgery; Osteogenesis, Distraction - methods; Osteotomy - instrumentation; Osteotomy, Sagittal Split Ramus - methods; Otorhinolaryngology. Stomatology; relapse; Retrognathia - surgery; Retrospective Studies; sagittal split osteotomy; Sella Turcica - pathology; Skeleton and joints; Surgery; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Treatment Outcome; Vertebrates: osteoarticular system, musculoskeletal system; Young Adult
• ISSN: 0901-5027; 1399-0020
• DOI: 10.1016/j.ijom.2011.10.031

Abstract The aim of this study was to compare the postoperative stability of the mandible after a bilateral lengthening procedure, either by bilateral sagittal split osteotomy (BSSO) or distraction osteogenesis (DO). All patients who underwent mandibular advancement surgery between March 2001 and June 2004 were evaluated. There were 17 patients in the BSSO group and 18 patients in the DO group. The decision to use intra-oral distraction or BSSO for mandibular advancement primarily depended on the choice of the patient and their parents. In both groups, standardized cephalometric radiographs were taken preoperatively, postoperatively (BSSO group) or directly post-distraction (DO group) and during the last study measurement in May 2008. Cephalometric analysis was performed using the following measurements: sella/nasion-mandibular point B and sella/nasion-mandibular plane. Point B was used to estimate relapse. This study showed no significant difference in relapse between the BSSO and the DO groups measured 46–95 months after advancement of the mandible ( P > .05). It can be concluded from this study that there is no postoperative difference in the stability between BSSO and DO after mandibular advancement after 4 years.