Application of virtual design and guide in the treatment of hemifacial microsomia

Abstract

Abstract: PURPOSE: Accurate preoperative planning and intraoperative realization is critical to ensure successful results. This study was to explore the application of virtual design and guide in the treatment of hemifacial microsomia (HFM). METHODS: Eight patients of HFM were enrolled in this study. Virtual surgical planning, simulation and postoperative prediction were performed. Under the guidance of 3D printed guide, mandibular ramus osteotomy and distractor implant were carried out. Clinical examination was performed after removal of distractor. Surgical accuracy was evaluated by comparing the postoperative CT 3-D model with preoperative surgical planning. RESULTS: All the patients underwent virtual surgical planning, 3D guide printing and distraction osteogenesis(DO) successfully. Facial symmetry was greatly improved after treatment. The mean deviation between the preoperative design and actual surgical results was less than 2 mm. CONCLUSIONS: With the ability of preoperative planning, surgical simulation and postoperative prediction, virtual design shows great value in improving the accuracy of DO and restoring facial symmetry. It is regarded as a valuable technique in this potentially complicated procedure.

Key words: Hemifacial microsomia, Virtual design and guide, Mandibular hypoplasia, Distraction osteogenesis

CLC Number:

R782.2.3

WANG Min-jiao, CHEN Tian-tian, SI Jia-wen, WANG Xu-dong, SHEN Guo-fang, YU Hong-bo. Application of virtual design and guide in the treatment of hemifacial microsomia[J]. China Journal of Oral and Maxillofacial Surgery, 2016, 14(2): 123-127.

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