High oblique sagittal split osteotomy of the mandible

• Verfasst von: Kühle, Reinald [VerfasserIn]
• Verfasst von: Berger, Moritz [VerfasserIn]
• Verfasst von: Saure, Daniel [VerfasserIn]
• Verfasst von: Hoffmann, Jürgen [VerfasserIn]
• Verfasst von: Seeberger, Robin [VerfasserIn]
• Titel: High oblique sagittal split osteotomy of the mandible
• Titelzusatz: assessment of the positions of the mandibular condyles after orthognathic surgery based on cone-beam tomography
• Verf.angabe: R. Kuehle, M. Berger, D. Saure, J. Hoffmann, R. Seeberger
• E-Jahr: 2016
• Jahr: 3 April 2016
• Umfang: 5 S.
• Fussnoten: Gesehen am 20.03.2018
• Titel Quelle: Enthalten in: The British journal of oral & maxillofacial surgery
• Ort Quelle: Amsterdam [u.a.] : Elsevier, 1984
• Jahr Quelle: 2016
• Band/Heft Quelle: 54(2016), 6, Seite 638-642
• ISSN Quelle: 1532-1940
• DOI: doi:10.1016/j.bjoms.2016.03.017
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Bilateral sagittal split osteotomy
• Sach-SW: Cranio-mandibular-joint
• Sach-SW: Mandibular condyle position
• Sach-SW: Orthognathic surgery
• K10plus-PPN: 1571255052

Abstract

High oblique sagittal split osteotomy is an orthognathic technique to move the mandible. Our aim was to evaluate changes in the position of the condyle in the glenoid fossa and its angulation before and after high oblique sagittal split osteotomy (HSSO). Fifty patients (32 women and 18 men, mean age 26.3 (SD 7.4) years) had cone-beam computed tomographyic (CT) scans before operation, immediately postoperatively, and before removal of the osteosynthesis nine months postoperatively. The images were analysed to look for changes in the sagittal, coronal, and axial positions of the condyles. Twenty-four patients with class II malocclusion had a mean (SD) mandibular advancement of 6.51 (2.41) mm, and 26 patients with class III malocclusion had a mean (SD) mandibular setback of 4.16 (2.77) mm. The joint space increased significantly (p<0.05) relative to baseline immediately postoperatively, but there was no significant increase at the nine-month follow-up. The changes in position in the sagittal, coronal, and axial planes were comparable. Despite there being a short proximal joint-bearing segment, the results indicate that this technique allows free-hand condylar positioning into the fossa safely without any clinically relevant dislocations.