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Maxillofacial Plastic and Reconstructive Surgery
Published in: Maxillofacial Plastic and Reconstructive Surgery 1/2019

Open Access 01-12-2019 | Research

Comparative study on long-term stability in mandibular sagittal split ramus osteotomy: hydroxyapatite/poly-l-lactide mesh versus titanium miniplate

Authors: Young-Wook Park, Hyun-Sik Kang, Jang-Ha Lee

Published in: Maxillofacial Plastic and Reconstructive Surgery | Issue 1/2019

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Abstract

Background

Resorbable devices have recently been adopted in the field of orthognathic surgery with controversies about their postoperative skeletal stability. Hence, we determined the long-term skeletal stability of unsintered hydroxyapatite/poly-l-lactic acid (HA/PLLA) mesh for osteofixation of mandibular sagittal split ramus osteotomy (SSRO), and compared it with that of titanium miniplate.

Methods

Patients were divided into resorbable mesh and titanium miniplate fixation groups. A comparative study of the change in the mandibular position was performed with preoperative, 1-day, 6-month, and 2-year postoperative lateral cephalograms.

Results

At postoperative 6 months—compared with postoperative 1 day, point B (supra-mentale) was significantly displaced anteriorly in the titanium-fixation group. Moreover, at postoperative 2 years—compared with postoperative 6 months, point B was significantly displaced inferiorly in the titanium-fixation. However, the HA/PLLA mesh-fixation group did not show any significant change with respect to point B postoperatively.

Conclusions

The HA/PLLA mesh-fixation group demonstrated superior long-term skeletal stability with respect to the position of mandible, when compared with the titanium-fixation group.
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Metadata
Title
Comparative study on long-term stability in mandibular sagittal split ramus osteotomy: hydroxyapatite/poly-l-lactide mesh versus titanium miniplate
Authors
Young-Wook Park
Hyun-Sik Kang
Jang-Ha Lee
Publication date
01-12-2019
Publisher
Springer Berlin Heidelberg
Published in
Maxillofacial Plastic and Reconstructive Surgery / Issue 1/2019
Electronic ISSN: 2288-8586
DOI
https://doi.org/10.1186/s40902-019-0192-6

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