Department of Oral & Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200011, China.
Department of Oral & Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200011, China.
J Craniomaxillofac Surg. 2017 Oct;45(10):1704-1709. doi: 10.1016/j.jcms.2017.08.003. Epub 2017 Aug 8.
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.
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.
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).
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.
本动物研究旨在探讨 TBNavis-CMFS 导航系统引导下特殊设计的牵引装置在导航引导下颌骨牵引成骨中的准确性。
本研究纳入 4 只山羊。在 TBNavis-CMFS 导航系统中模拟三维模拟单侧下颌骨牵引成骨 14mm 延长。应用一种新设计的下颌骨牵引装置，带有可拆卸的导航手术适配器，并结合特定的下颌骨动态参考框架。在山羊身上进行导航引导的牵引成骨，并根据模拟逐渐牵引下颌骨。对术前模拟和术后结果进行术后 3D 骨骼测量，并进行统计学比较。
导航辅助牵引成骨成功完成，新设计的牵引装置无并发症。术中注册的准确性在 1mm 以内。下颌骨平均延长 14.25mm（13.87-14.36mm）。模拟牵引与术后 3D 测量之间无显著差异（p>0.05）。
使用 TBNavis-CMFS 导航系统，一种新设计的牵引装置可用于导航引导下颌骨牵引成骨，具有高精度。
