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目的:测量弯针经眶-圆孔入路的相关骨性结构解剖数据,为临床安全开展此路径的三叉神经第二支疼痛射频温控热凝术提供理论参考。方法:选取我院2013年~2015年间50例颌面部良性肿瘤患者(男女各25例),拍摄头面部三维CT数据。采用Mimics软件测量眶-圆孔入路的相关解剖结构,计算穿刺针弯针弧度、骨性进针深度、圆孔外口最下点至视神经孔外口最下点距离、穿刺方向与眶耳平面角度、与矢状面角度,垂直方向上安全穿刺角度,并进行统计学分析。结果:男、女异侧组内比较,右侧∠ABA_2均高于左侧,差异具有统计学意义(P<0.05);男、女异侧组间比较,女右∠ABA_2高于男左,女右弧AC长度低于男左,男右弧AC长度、LCD、∠ABA_2、∠CAD高于女左,差异均有统计学意义(P<0.05);男、女同侧组间比较,男左、右弧AC长度、∠CAD分别高于女左、右,差异均有统计学意义(P<0.05)。其余指标比较差异均无统计学意义。结论:弯针经眶-圆孔入路避免了因直针入路方式角度的局限性,且根据Mimics软件测量数据,为临床安全开展CT引导下弯针经眶-圆孔入路提供解剖参考。
OBJECTIVE: To measure the anatomical data of the relevant skeletal structure of the looper through the orbital-circular hole, and to provide a theoretical reference for the clinical safety of the second trigeminal nerve radiofrequency thermocoagulation in this pathway. Methods: Fifty patients with maxillofacial benign tumor (25 males and 25 females) from 2013 to 2015 in our hospital were selected for 3D CT data acquisition. Mimics software was used to measure the anatomy of the orbital-round hole approach. The curvature of the curved needle of the puncture needle, the depth of the bite needle, the lowest point of the external orifice of the circular hole, and the lowest point of the external orifice of the optic nerve pore were calculated. Plane angle, and sagittal plane angle, perpendicular to the direction of the safety puncture, and statistical analysis. Results: In male and female heterophasic group, the right 侧ABA_2 were higher than the left, the difference was statistically significant (P <0.05); male and female heterosexual group, female right ∠ ABA_2 higher than the male left, Female right arc AC length is lower than male left and right AC arc length, LCD, ∠ABA_2, ∠CAD higher than female left, the difference was statistically significant (P <0.05); male and female ipsilateral group comparison, male Left and right arc AC length, ∠CAD higher than female left and right respectively, the difference was statistically significant (P <0.05). The remaining indicators were no significant difference. CONCLUSIONS: The looped needle avoids the limitations of the straight-line approach due to orbital-round-hole approach and provides anatomic reference for the looper via the orbital-circular approach under CT guidance for clinical safety based on the Mimics software measurement data .