The accuracy of virtual-surgical-planning-assisted treatment of hemifacial microsomia in adult patients: distraction osteogenesis vs. orthognathic surgery.
Hemifacial microsomia (HFM) is a common congenital craniofacial deformity with a high prevalence. Orthognathic surgery and distraction osteogenesis are two conventionally used treatments of HFM. The main objective of this retrospective study was to evaluate the accuracy of two treatments with the help of virtual surgical planning in adult HFM patients. Sixty-eight adult patients with unilateral HFM were enrolled in this study. Preoperative surgical planning and simulation were performed on three-dimensional computed tomography models. Orthognathic surgery or distraction osteogenesis was performed under the guidance of three-dimensional surgical templates. Postoperative evaluation of the intervention was performed by comparison of the affected ramus height, chin deviation and the occlusal cant in surgical planning and actual result. Outcome and feedback information (an average of 14 months) showed that virtual surgical planning was accurately transferred to actual surgery in both surgical approaches. There were no statistical differences between the accuracy of affected ramus height and the occlusal cant in two surgical approaches. The orthognathic group showed significantly higher accuracy in chin deviation. In conclusion, virtual surgical planning and three-dimensional surgical templates were proved to facilitate treatment planning and offer an accurate surgical result in the treatment of adult HFM patients.
['Wang|P|P|', 'Zhang|Z|Z|', 'Wang|Y|Y|', 'Li|X|X|', 'Ye|B|B|', 'Li|J|J|']
D000293:Adolescent D000328:Adult D005260:Female D006053:Goldenhar Syndrome D006801:Humans D008297:Male D056948:Orthognathic Surgical Procedures D019857:Osteogenesis, Distraction D025321:Surgery, Computer-Assisted D014057:Tomography, X-Ray Computed D016896:Treatment Outcome
hemifacial microsomia distraction osteogenesis orthognathic surgery 3D printing virtual surgery planning