Liu Li, Li Jiayang, Ji Huanzhong, Zhang Nian, Wang Yiyao, Zheng Guangning, Wang Hu, Luo En
State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Disease, Department of Oral Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Disease, Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
PLoS One. 2017 Mar 3;12(3):e0173142. doi: 10.1371/journal.pone.0173142. eCollection 2017.
To evaluate the changes in the jaws and the upper airways of unilateral temporomandibular joint ankylosis patients who underwent condylar reconstruction via autogenous coronoid process grafts using cone-beam computed tomography (CBCT).
The 27 included patients underwent CBCT examinations at three stages: T0 (within two weeks before surgery), T1 (two weeks after surgery), and T2 (an average of 13 months after surgery). Forty items related to the maxillofacial hard tissues and the upper airway collected at the three times and the coronoid process graft volumes after surgery were compared.
Some integral items related to the mandibular hard tissues exhibited statistical difference shortly after surgery. Some integral items related to maxillofacial hard tissues changing obviously long period after surgery may result from graft remodeling. Asymmetry-related item regarding local neo-condyle and some airway items were significantly different between T0 and T1. Due to variations in graft remodeling, some related local asymmetry items and airway items differed significantly between T0 and T2.
Anteriorly and inferiorly located neo-condyles and a trend toward the pronation of the mandible were observed and the narrowness of the upper airway was improved shortly after surgery. The grafts remodeled differently and some integral and asymmetry items related to neo-condyle changed. The improvements in the upper airway were slightly reduced.
使用锥形束计算机断层扫描（CBCT）评估接受自体喙突移植髁突重建的单侧颞下颌关节强直患者颌骨及上气道的变化。
纳入的27例患者在三个阶段接受CBCT检查：T0（术前两周内）、T1（术后两周）和T2（术后平均13个月）。比较三次采集的40项与颌面硬组织及上气道相关的指标以及术后喙突移植体积。
一些与下颌硬组织相关的整体指标在术后短期内出现统计学差异。一些与颌面硬组织相关的整体指标在术后较长时间明显变化可能是由于移植骨重塑。T0和T1之间，与局部新髁突相关的不对称指标及一些气道指标存在显著差异。由于移植骨重塑的差异，T0和T2之间一些相关的局部不对称指标和气道指标存在显著差异。
术后短期内观察到新髁突位于前方和下方，下颌有前旋趋势，上气道狭窄得到改善。移植骨重塑方式不同，一些与新髁突相关的整体和不对称指标发生变化。上气道的改善略有降低。
