Yang MeiRong, Jiang Haiyue, Yu Xiaobo, Chen Weiwei, Li Qingsong, Zhang Ye, Pan Bo
From the Departments of *Auricular Reconstruction and †Radiology, Plastic Surgery Hospital, Peking Union Medical College, Beijing, China.
J Comput Assist Tomogr. 2017 Sep/Oct;41(5):784-791. doi: 10.1097/RCT.0000000000000590.
The objectives of this study were to evaluate sternal development and variations in patients with microtia and to identify the incidence of congenital sternal anomalies and then to investigate the interaction between microtia and sternal anomalies.
A total of 212 consecutive patients received a preoperative 3-dimensional chest computed tomography. A retrospective study was performed with the clinical and imaging data from November 2014 to July 2015. Descriptive statistics, analysis of variance, Spearman analysis, χ test, and Fisher χ test were performed for statistics analysis.
We evaluated the ossification centers and developmental variations in the manubrium and body, as well as the xiphoid process, manubriosternal and sternoxiphoidal fusion, and sternal anomalies. Significant variations were observed from person to person. Sternal foramen was detected in 6 male patients (2.8%). All foramina were located in the inferior part of the body. Sternal cleft was observed in 4 cases (1.9%), of which 2 were accompanied by a foramen in the distal part of the sternum.
The development of the different components of the sternum is a process with wide variation among patients with microtia. A different distribution of mesosternal types I to II among our population age range was found, and the incidence of sternal foramina was lower in patients with microtia.
本研究的目的是评估小耳畸形患者的胸骨发育及变异情况，确定先天性胸骨异常的发生率，并研究小耳畸形与胸骨异常之间的相互作用。
共有212例连续患者接受了术前胸部三维计算机断层扫描。对2014年11月至2015年7月的临床和影像数据进行回顾性研究。采用描述性统计、方差分析、Spearman分析、χ检验和Fisher χ检验进行统计学分析。
我们评估了胸骨柄、胸骨体以及剑突的骨化中心和发育变异情况，以及胸骨柄与胸骨体、胸骨与剑突的融合情况和胸骨异常。观察到人与人之间存在显著差异。6例男性患者（2.8%）检测到胸骨孔。所有胸骨孔均位于胸骨体下部。观察到4例（1.9%）胸骨裂，其中2例在胸骨远端伴有胸骨孔。
胸骨不同组成部分的发育在小耳畸形患者中是一个个体差异很大的过程。我们发现胸骨中I型至II型在人群年龄范围内分布不同，小耳畸形患者胸骨孔的发生率较低。
