Format

Send to

Choose Destination

See 1 citation found by title matching your search:

J Craniomaxillofac Surg. 2018 Oct;46(10):1793-1799. doi: 10.1016/j.jcms.2018.07.006. Epub 2018 Jul 21.

Accuracy in orthognathic surgery─comparison of preoperative plan and postoperative outcome using computer-assisted two-dimensional cephalometry by the Onyx Ceph® system.

Author information

1
Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Torsten Reichert), University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
2
Centre for Clinical Studies and Statistics (Head Prof. Dr. M. Koller), University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
3
Department of Orthodontics (Head: Prof. Dr. Dr. Peter Proff), University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
4
Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Martin Gosau), Nuremberg Hospital, Breslauer Straße 201, 90471 Nürnberg, Germany.
5
Department of Oral and Maxillofacial Surgery (Head: Prof. Dr. Dr. Torsten Reichert), University Medical Centre Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany. Electronic address: tobias.ettl@ukr.de.

Abstract

PURPOSE:

This retrospective study analyzes deviations between preoperative planning and postoperative outcome in orthognathic surgery using 2D Onyx Ceph®-cephalometric analyzing and planning system.

MATERIALS AND METHODS:

A total of 100 patients with a mean age 25.1 of years were included in this study. In 33 patients a bilateral sagittal split osteotomy and in seven patients a Le Fort I osteotomy was performed. A total of 60 patients were treated by a bimaxillary approach. Onyx Ceph® was used as cephalometric planning software (Onyx Ceph®), followed by mock operations. Postoperative cephalograms were obtained after 3.3 days and compared to preoperative planning cephalograms for sagittal (SNA, SNB, ANB) and vertical (ArGoMe, ML-NSL, NL-NSL) angle measurements. Real and absolute mean deviation were documented.

RESULTS:

Absolute mean deviation (degrees) between postoperative and planned jaw movement was lower for the sagittal parameters SNA (0.58), SNB (1.15) and ANB (1.05) compared to the vertical parameters NL-NSL (1.47), ML-NSL (1.96) and ArGoMe (3.20). SNA, SNB and ANB showed constant deviations independent from the extent of jaw movement. With regard to the vertical parameters ML-NSL, ArGoMe and NL-NSL the extent of the postoperative rotational jaw movement was not as much as planned, particularly for vertical shifts of more than 4°.

CONCLUSION:

By using the 2D Onyx Ceph® cephalometric software for orthognathic surgery, the deviations between planned and actual movements are within an acceptable and predictable range. Planning of extensive vertical alterations may result in greater deviations after surgery.

KEYWORDS:

Accuracy; Orthognathic surgery; Planning

PMID:
30174205
DOI:
10.1016/j.jcms.2018.07.006
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center