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目的:探讨数字化技术用于辅助治疗陈旧性眶颧骨折的临床效果。方法:回顾性分析空军军医大学第一附属医院整形外科2015年10月至2019年5月收治的20例陈旧性眶颧骨折患者的临床资料，其中男14例，女6例，年龄18～56岁。术前行头颅CT薄层扫描，将数据通过Mimics软件进行三维重建，利用数字化模型确定手术方案，进而打印三维头颅模型，制作截骨导板及复位导板引导术中截骨及复位。采用Mimics软件测量术前和术后3 d双侧眶点连线与双侧耳点连线的夹角(A-OT值)、双侧颧突点至面中线距离差值的绝对值(面宽差)及双侧颧突点至过骨性外耳道中心点的垂线的距离差值的绝对值(面突差)，以Hertel突眼计测量术前和术后6个月患侧眼球突出度，手术前、后比较采用配对n t检验，n P<0.05为差异有统计学意义。n 结果:20例患者术后伤口均一期愈合，随访6个月至3年，手术前后A-OT值分别为(8.41±2.46)°和(2.67±0.55)°，差异有统计学意义(n t＝11.242，n P<0.001); 面宽差分别为(9.12±1.02) mm和(1.51±0.40) mm，差异有统计学意义(n t＝33.946，n P<0.001)；面突差分别为(9.22±0.95)mm和(1.53±0.61) mm，差异有统计学意义(n t＝33.484，n P<0.001)；除4例眼球摘除的患者外，其余患者眼球突出度术前为(7.81±1.25) mm，术后6个月为(12.78±0.65) mm，改善明显，差异有统计学意义(n t＝-13.183，n P<0.001)，术后无复视及眼球异常运动。n 结论:数字化技术应用于陈旧性眶颧骨折的治疗，有助于准确诊断及辅助精确复位，提高手术效果。“,”Objective:To investigate the clinical effect of digital technology in the treatment of secondary deformity of orbitozygomatic fracture.Methods:The clinical data of 20 patients with secondary deformity of orbitozygomatic fracture treated in the Department of Plastic Surgery, the First Affiliated Hospital of Air Force Medical University from October 2015 to May 2019 were retrospectively analyzed, including 14 males and 6 females, aged 18-56 years. A computed tomography scan of the skull was performed before the operation. The data was three-dimensional(3D) reconstructed by Mimics software. The digital model was used to determine the surgical plan. Then the 3D head model was printed, osteotomy guide plate and reduction guide plate were used to guide osteotomy and reduction during surgery. Using Mimics software, the angle between orbital horizontal level and bilateral tragus linkage(A-OT value), the absolute value of the distance difference between bilateral zygomatic process point and facial midline (face width difference), and the absolute value of the distance difference between bilateral zygomatic process points and the vertical line passing through the central point of bony external auditory canal(facial process difference) were measured before and 3 days after operation. The exophthalmos of the affected side was measured by Hertel exophthalmos meter before and 6 months after operation. The paired n t-test was used for comparison before and after operation. n P<0.05 was statistically significant.n Results:All the wounds healed well and the 20 patients were followed up for 6 months to 3 years. Before and after surgery, the A-OT values were (8.41 ± 2.46)° and (2.67 ± 0.55)°, with statistically significant difference (n t=11.242, n P<0.001). Face width differences were (9.12 ± 1.02) mm and (1.51 ± 0.40) mm, with statistically significant difference(n t=33.946, n P<0.001). Facial process differences were (9.22 ± 0.95) mm and (1.53 ± 0.61) mm, with statistically significant difference (n t=33.484, n P<0.001). Except for 4 patients with enucleation, the exophthalmos of the other patients was (7.81 ± 1.25) mm before operation and (12.78 ± 0.65) mm 6 months after operation. The difference was statistically significant (n t=-13.183, n P<0.001). There was no diplopia and abnormal eye movement after operation.n Conclusions:The application of digital technology in the treatment of secondary deformity of orbitozygomatic fracture is helpful to accurately diagnosis and reduction, and to improve the surgical effect.