Quantitative analysis based on three-dimensional stereophotogrammetry in the observation of curative effect of botulinum toxin A on masseter hypertrophy
10.3760/cma.j.issn.1009-4598.2016.04.008
- VernacularTitle:三维立体摄影测量在A型肉毒毒素注射治疗良性咬肌肥大效果观察中的应用
- Author:
Zihan XUE
1
;
Wei ZENG
;
Zhaoyang CHEN
;
Yan HAN
Author Information
1. 解放军总医院整形外科
- Keywords:
Masseter muscle;
Botulinum toxin A;
Imaging,three-dimensional
- From:
Chinese Journal of Plastic Surgery
2016;32(4):272-275
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the curative effect of botulinum toxin A on masseter hypertrophy using three-dimensional stereophotogrammetry.Methods 46 cases with masseter hypertrophy (92 masseters) who received botulinum toxin A injection were enrolled from May 2013 to August 2014.Data were collected before and 3,6 and 9 months after injection.Results The efficacy of botulinum toxin A in reducing the volume of the lower face has been proven by MAS 3D.3 and 6 months after injection,the volume reduction were measured as 7.23 ％,2.15％ respectively (P ＜ 0.05).The coefficients between middle and lower thirds of the face showed an increase compatible with thinning of the lower face with statistical significance at 3 months follow up.The increase percentage was measured by MAS 3D as 40.21％ between pre-and post-injection (P ＜ 0.05),and the increase percentage was 21.03％ at 6 months follow up (P ＜ 0.05).While 9 months after injection,the value was insignificant comparing to pretreatment at 9 months.Conclusions Three-dimensional stereophotogrammetry provides a safe effective and direct way to observe masseter hypertrophy.
