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  • Title: Application of a newly designed mandibular distraction device for navigation surgery in goats.
    Author: Cai M, Chen Y, Lu X, Xu L, Wang X, Shen G.
    Journal: J Craniomaxillofac Surg; 2017 Oct; 45(10):1704-1709. PubMed ID: 28865846.
    Abstract:
    PURPOSE: This animal study is to investigate the accuracy of navigation-guided mandibular distraction osteogenesis with a special designed distraction device by TBNavis-CMFS navigation system. MATERIALS AND METHODS: Four goats were included in this study. The 3D simulation unilateral mandibular distraction osteogenesis was simulated for 14 mm lengthening in TBNavis-CMFS navigation system. A new designed mandibular distraction device with the detachable adapter for navigation surgery in combination with the specific mandibular dynamic reference frame was applied. Navigation guided distraction osteogenesis was performed on goats and mandible was gradually distracted according to the simulation. Postsurgical 3-D skeletal measurements of presurgical simulations and postsurgical outcomes were compared statistically. RESULTS: Navigation assisted distraction osteogenesis was successfully performed and the new designed distraction devices worked uneventful. The accuracy of intra-operative registration was within 1 mm. The mandible was lengthened for 14.25 mm in average (13.87-14.36 mm). There were no significant differences between simulation distraction and post-operative 3-D measurements (p > 0.05). CONCLUSIONS: A new designed distraction device could be used in navigation guided mandibular distraction osteogenesis on goats with high accuracy by using the TBNavis-CMFS navigation system.
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