一种新型喙锁韧带重建导向器及其钻孔精度评价  

A novel guide device for coracoclavicular ligament reconstruction: design and tunnel drilling accuracy assessment

作　　者：李鉴轶[1] 游辅宇 孔祥雪[1] 林荔军 张洪涛[4] 

机构地区：[1]南方医科大学基础医学院人体解剖教研室,广州510515 [2]南方医科大学第一临床医学院,广州510515 [3]珠江医院骨科,广州510282 [4]中山市黄圃人民医院,广东528429

出　　处：《中国骨科临床与基础研究杂志》2015年第5期285-289,共5页Chinese Orthopaedic Journal of Clinical and Basic Research

基　　金：广东省科技计划项目(2014A020212200;2015A040404022)

摘　　要：目的设计制作一种适用于开放性手术的新型喙锁韧带重建导向器并评价其钻孔精度。方法利用计算机辅助设计(CAD)、3D打印技术设计制作新型喙锁韧带重建导向器。在10个单侧肩关节标本(男6个、女4个)上使用新型导向器建立直径3 mm的骨隧道,测量喙突下表面骨隧道至喙突内外侧的最小距离,并对导向器的钻孔精确度进行评估。结果喙突下表面骨隧道出口距喙突外侧和喙突内侧的最小距离分别为(5.7±1.3)mm和(6.1±1.3)mm,两者比较,差异无统计学意义(P=0.494,t=—7.110)。结论新型导向器钻孔准确性较高,可用于喙锁韧带重建开放性手术中骨隧道的建立。Objective To develop a novel guide device which is used for open surgery to reconstruct coracoclavicular ligament, and to evaluate its tunnel drilling accuracy. Methods The guide device was made by using computer assisted design（CAD） and 3D printing technique, and then bone tunnels with 3 mm diameter were drilled out on 10 unilateral shoulder joints（harvested from 6 male and 4 female） under the assist of guide device. The minimum distances from the edge of tunnel to medial and lateral edge of coracoid on the inferior surface were measured, so as to evaluate the tunnel drilling accuracy of the device. Results The mean remaining lateral and medial wall thicknesses before cortical breach was（5.7 ± 1.3） mm and（6.1 ± 1.3） mm, respectively,and the difference had no statistical significance（P = 0.494, t =-7.110）. Conclusion The device can be used to drill bone tunnel for coracoclavicular ligament reconstruction in open operation with high accuracy.

关 键 词：肩锁关节 喙锁韧带 修复外科手术 图像处理 计算机辅助 3D打印 骨隧道 导向器 

分 类 号：R687.3[医药卫生—骨科学]