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Maxillofacial Plastic and Reconstructive Surgery
Published in: Maxillofacial Plastic and Reconstructive Surgery 1/2018

Open Access 01-12-2018 | Research

The effect of botulinum toxin-A injection into the masseter muscles on prevention of plate fracture and post-operative relapse in patients receiving orthognathic surgery

Authors: Sung-Ho Shin, Yei-Jin Kang, Seong-Gon Kim

Published in: Maxillofacial Plastic and Reconstructive Surgery | Issue 1/2018

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Abstract

Background

Botulinum toxin-A (BTX-A) injection into muscle reduces muscular power and may prevent post-operative complication after orthognathic surgery. The purpose of this study was (1) to evaluate BTX-A injection into the masseter muscle on the prevention of plate fracture and (2) to compare post-operative relapse between the BTX-A injection group and the no injection group.

Methods

Sixteen patients were included in this study. Eight patients received BTX-A injection bilaterally, and eight patients served as control. All patients received bilateral sagittal split ramus osteotomy for the mandibular setback and additional surgery, such as LeFort I osteotomy or genioplasty. Post-operative plate fracture was recorded. SNB angle, mandibular plane angle, and gonial angle were used for post-operative relapse.

Results

Total number of fractured plates in patients was 2 out of 16 plates in the BTX-A injection group and that was 8 out of 16 plates in the no treatment group (P = 0.031). However, there were no significant differences in post-operative changes in SNB angle, mandibular plane angle, and gonial angle between groups (P > 0.05).

Conclusions

BTX-A injection into the masseter muscle could reduce the incidence of plate fracture.
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Metadata
Title
The effect of botulinum toxin-A injection into the masseter muscles on prevention of plate fracture and post-operative relapse in patients receiving orthognathic surgery
Authors
Sung-Ho Shin
Yei-Jin Kang
Seong-Gon Kim
Publication date
01-12-2018
Publisher
Springer Berlin Heidelberg
Published in
Maxillofacial Plastic and Reconstructive Surgery / Issue 1/2018
Electronic ISSN: 2288-8586
DOI
https://doi.org/10.1186/s40902-018-0174-0

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