Varol Altan, Basa Selçuk
Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Marmara University, Istanbul, Turkey.
Int J Med Robot. 2009 Jun;5(2):198-206. doi: 10.1002/rcs.251.
Maxillary distraction osteogenesis is a challenging procedure when it is performed with internal submerged distractors due to obligation of setting accurate distraction vectors.
Five patients with severe maxillary retrognathy were planned with Mimics 10.01 CMF and Simplant 10.01 software. Distraction vectors and rods of distractors were arranged in 3D environment and on STL models. All patients were operated under general anaesthesia and complete Le Fort I downfracture was performed.
All distractions were performed according to orientated vectors. All patients achieved stable occlusion and satisfactory aesthetic outcome at the end of the treatment period.
Preoperative bending of internal maxillary distractors prevents significant loss of operation time. 3D computer-aided surgical simulation and model surgery provide accurate orientation of distraction vectors for premaxillary and internal trans-sinusoidal maxillary distraction. Combination of virtual surgical simulation and stereolithographic models surgery can be validated as an effective method of preoperative planning for complicated maxillofacial surgery cases.
当上颌骨使用内置式埋入牵引器进行牵引成骨术时，由于需要设定精确的牵引向量，该手术具有挑战性。
使用Mimics 10.01 CMF和Simplant 10.01软件对5例严重上颌后缩患者进行规划。在3D环境和STL模型上排列牵引向量和牵引器的杆。所有患者均在全身麻醉下手术，进行了完整的Le Fort I型截骨术。
所有牵引均按照定向向量进行。所有患者在治疗期结束时均实现了稳定的咬合和满意的美学效果。
术前对上颌骨内置牵引器进行弯曲可避免手术时间的大量损失。3D计算机辅助手术模拟和模型手术为上颌前部和经鼻窦内上颌牵引提供了精确的牵引向量方向。虚拟手术模拟和立体光刻模型手术相结合可被验证为复杂颌面外科手术病例术前规划的有效方法。
