目的：研究探讨双侧上颌骨缺损颧种植体修复的有限元情况。方法：应用CT对患者进行扫描，根据扫描数据、图像等模拟上颌骨双侧骨缺损状态。并且依照临床的上颌骨缺损后修复设计方案，将腓骨瓣结合常规种植体对患者实施植入，并且利用三维有限元对生物力学情况进行分析。结果：对比两组患者各项手术指标，结果表明观察组患者术中出血量、手术时间、住院时间以及下床时间均显著少于对照组，两组患者术后均无大出血或脏器损伤的发生，但观察组术后发热例数显著少于对照组，两组患者术后均无大出血或脏器损伤的发生，但观察组术后发热例数显著少于对照组，以上差异均有明显的统计学价值（P＜0.05）。结论：本实验结果显示力引起的应力主要是由患者的腓骨和颧骨承担的，采用颧种植体结合血管化腓骨瓣修复能够合理的分散并将力传导，使得周围组织的应力分布更加合理，是一种双侧上颌骨缺损重建的安全、有效的方法。%Objective: To explore the finite element of jaw bone defect repair of bilateral zygomatic implant. Methods: The patients were scanned by CT, and the status of bilateral bone defect was simulated ac-cording to the scanning data and image. And in accordance with the clinical treatment of maxillary de-fect repair design program, the fibula flap combined with conventional implants for patients with im-plantation, and the use of three-dimensional finite element analysis of the biomechanical situation. Re-sults:The above differences had obvious statistical value (P<0.05), and compared two groups of patients with the operation indexes, the results of the observation group patients bleeding, operation time, hospi-talization time and bed time were significantly less than that of the control group. Patients in two groups were no bleeding or organ injury, but the observation group of fever after the number of cases was sig-nificantly lower than that of the controls. After operation, the patients in the two groups were no bleed-ing or organ injury, but the observation group of the postoperative fever case number was significantly less than that of the control group. Conclusion: The experimental results show that the occlusal force caused by the stress is mainly borne by patients with peroneal and cheekbones, the zygomatic implant combined with vascularized fibula flap to reasonable dispersion and occlusal force conduction, the sur-rounding tissue stress distribution is more reasonable, is a bilateral maxillary bone defect reconstruction is a safe and effective method.
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