Universität zu Köln

Dreiseidler, T., Bergmann, J., Zirk, M., Rothamel, D., Zoeller, J. E. and Kreppel, M. (2016). Three-dimensional fracture pattern analysis of the Obwegeser and Dal Pont bilateral sagittal split osteotomy. Int. J. Oral Maxillofac. Surg., 45 (11). S. 1452 - 1459. EDINBURGH: CHURCHILL LIVINGSTONE. ISSN 1399-0020

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Abstract

The Obwegeser and Dal Pont modification of the bilateral sagittal split osteotomy (BSSO) is a well-established procedure in orthognathic surgery. The purpose of this retrospective study was to analyze the actual fracture patterns achieved with BSSO by Obwegeser and Dal Pont modification using postoperative cone beam computed tomography (CBCT) datasets from 100 patients. A total of 200 split osteotomies were assessed, which could be categorized into nine different split patterns. Only one of the observed split fractures (0.5%) followed exactly the fracture line described by Obwegeser and Dal Pont, whereas 40% followed the fracture line according to the Hunsuck and Epker modification and 13.5% were seen as unfavourable splits mainly running over the buccal plate. A significant correlation was found between unfavourable buccal splits and both horizontal osteotomies reaching the buccal surface at the dorsal ramus (P = 0.001) and a vertical caudal bone cut end at the corpus with a buccal position (P < 0.001). These results show that a complete antero-posterior horizontal osteotomy at the mandibular ramus does not lead to the intended fracture pattern, which rebuts the argument of a greater amount of bony overlap using the Obwegeser and Dal Pont modification.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dreiseidler, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bergmann, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zirk, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rothamel, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zoeller, J. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kreppel, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-256624
DOI:	10.1016/j.ijom.2016.06.012
Journal or Publication Title:	Int. J. Oral Maxillofac. Surg.
Volume:	45
Number:	11
Page Range:	S. 1452 - 1459
Date:	2016
Publisher:	CHURCHILL LIVINGSTONE
Place of Publication:	EDINBURGH
ISSN:	1399-0020
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language INFERIOR BORDER SPLIT; MANDIBULAR RAMUS; ORTHOGNATHIC SURGERY; COMPUTED-TOMOGRAPHY; FOLLOW-UP; EXPERIENCE; LINE Multiple languages Dentistry, Oral Surgery & Medicine; Surgery Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25662