Department of Orthodontics, University of Texas Health Science Center, Houston, TX, USA.
Angle Orthod. 2010 Jul;80(4):519-24. doi: 10.2319/082009-472.1.
To determine whether facial asymmetry existed in patients with developmental dysplasia of the hip (DDH).
Subjects consisted of children between ages 5 and 10 years having DDH, and treated by the Von Rosen splint method. Three-dimensional (3-D) facial photographs were taken on all subjects using the 3dMDface system. Using RF6 PP2 software, anthropometric landmarks were plotted and used to calculate asymmetry based on 3-D coordinates in a reference framework.
Of a total of 60 subjects with a mean age of 8 years (SD, 1.4 years), 30 had dysplasia of the left hip; 13, of the right; and 17 were bilateral. Twenty-seven subjects had upper face (UF) dominance values of 2 mm or more; of those, 26 were right-side dominant. Twenty-four subjects (40%) had a chin-point (CP) deviation of 2 mm or more; of those, 21 had right-side deviations. Statistically, UF and CP deviations were not significantly independent of each other (P > .05). Thirty percent of subjects had a posterior dental crossbite.
The results indicate that facial asymmetry exists in patients with DDH.
确定发育性髋关节发育不良(DDH)患者是否存在面部不对称。
研究对象为采用 Von Rosen 支具治疗的 5-10 岁 DDH 儿童。使用 3dMDface 系统对所有受试者进行三维(3-D)面部摄影。使用 RF6 PP2 软件绘制人体测量标志点,并基于参考框架中的 3-D 坐标计算不对称性。
共有 60 名平均年龄 8 岁(标准差 1.4 岁)的受试者,其中 30 名左侧髋关节发育不良,13 名右侧髋关节发育不良,17 名双侧髋关节发育不良。27 名受试者的上面部(UF)优势值为 2 毫米或以上,其中 26 名右侧优势。24 名受试者(40%)颏部点(CP)偏差为 2 毫米或以上,其中 21 名右侧偏差。统计学上,UF 和 CP 偏差彼此之间无显著独立性(P>.05)。30%的受试者存在后牙反合。
研究结果表明,DDH 患者存在面部不对称。