Hung Kuofeng, Huang Wei, Wang Feng, Wu Yiqun
Int J Oral Maxillofac Implants. 2016 Nov/Dec;31(6):1444-1449. doi: 10.11607/jomi.5526.
This case report describes the clinical application of a real-time surgical navigation system to guide zygomatic implants on their placement. With the assistance of this novel navigation system, constant visualization of the drilling trajectory and exact control of the drilling direction can be achieved, which could minimize the risk of penetration into critical anatomical structures. Moreover, implants might be accurately placed in accordance to the preoperative planned position. In this patient, who had previously undergone a hemimaxillectomy, three zygomatic implants were placed on the unilateral zygoma, and two conventional implants were placed on the unresected maxilla. Measurement of distributive deviation of implants between preoperative planning and the postoperative result showed the mean linear deviations at the entrance and apical point of the implant were 1.07 ± 0.15 mm (range: 0.9 to 1.1 mm) and 1.20 ± 0.46 mm (range: 0.7 to 1.6 mm), respectively. The mean angle deviation between the axes of the planned and the actual implant was 1.37 ± 0.21 degrees (range: 1.2 to 1.3 degrees). Therefore, this surgical navigation system represents a reliable approach to guide the placement of zygomatic implants.
本病例报告描述了一种实时手术导航系统在引导颧骨种植体植入中的临床应用。借助这种新型导航系统，可以持续可视化钻孔轨迹并精确控制钻孔方向，从而将穿透关键解剖结构的风险降至最低。此外，种植体可以根据术前规划的位置准确植入。在这位先前接受过半侧上颌骨切除术的患者中，在单侧颧骨上植入了3枚颧骨种植体，在未切除的上颌骨上植入了2枚传统种植体。术前规划与术后结果之间种植体分布偏差的测量显示，种植体入口点和根尖点的平均线性偏差分别为1.07±0.15毫米（范围：0.9至1.1毫米）和1.20±0.46毫米（范围：0.7至1.6毫米）。计划种植体与实际种植体轴线之间的平均角度偏差为1.37±0.21度（范围：1.2至1.3度）。因此，这种手术导航系统是引导颧骨种植体植入的可靠方法。
