Discipline of Oral & Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong.
Head Neck. 2010 Dec;32(12):1728-35. doi: 10.1002/hed.21258.
We aim to illustrate the applications of 3-dimensional (3-D) photogrammetry for surgical planning and longitudinal assessment of the volumetric changes in hemifacial microsomia.
A 3-D photogrammetric system was employed for planning soft tissue expansion and transplantation of a vascularized scapular flap for a patient with hemifacial microsomia. The facial deficiency was calculated by superimposing a mirror of the normal side on the preoperative image. Postsurgical volumetric changes were monitored by serial superimposition of 3-D images.
A total of 31 cm(3) of tissue expansion was achieved within a period of 4 weeks. A scapular free flap measuring 8 cm × 5 cm was transplanted to augment the facial deficiency. Postsurgical shrinkage of the flap was observed mainly in the first 3 months and it was minimal thereafter.
3-D photogrammetry can be used as a noninvasive objective tool for assessing facial deformity, planning, and postoperative follow-up of surgical correction of facial asymmetry.
我们旨在展示三维（3-D）摄影测量技术在半面短小畸形的手术规划和体积变化的纵向评估中的应用。
我们使用 3-D 摄影测量系统为一位半面短小畸形患者的软组织扩张和血管化肩胛骨皮瓣移植制定手术计划。通过将正常侧的镜像叠加到术前图像上来计算面部缺陷。通过对 3-D 图像的连续叠加来监测术后的体积变化。
在 4 周内实现了总共 31cm³的组织扩张。一个 8cm×5cm 的肩胛骨游离皮瓣被移植以增加面部缺陷。术后皮瓣的收缩主要在前 3 个月观察到，此后则很小。
3-D 摄影测量术可作为一种非侵入性的客观工具，用于评估面部畸形、计划和手术矫正面部不对称的术后随访。
