Yan Liang, Wang Peng, Zhou Haibin
Department of Orthopedics, The Second Affiliate Hospital of Soochow University, Soochow, 215000 Jiangsu China.
Department of Orthopedics, Nantong Rich Hospital, Nantong, 226300 Jiangsu China.
Indian J Orthop. 2020 Mar 30;54(6):856-862. doi: 10.1007/s43465-020-00093-8. eCollection 2020 Nov.
The purpose of our study was to explore the feasibility of 3D printing navigation template used in total hip arthroplasty (THA) for adult developmental dysplasia of the hip (DDH).
25 patients who received THA for DDH from February 2014 to May 2018 were randomized into the control or intervention group. Of these patients, 12 received THAs assisted with 3D printing navigation templates, 13 THAs underwent THAs without navigation templates. The mean follow-up was 1.6 (range, 1.2-3.8) years. Clinical scores and radiographic results were evaluated for two groups.
Operating time, intra- and postoperative hemorrhage and Harris Hip Score (HHS) at 6 months postoperatively in the 3D printing group were better than those for patients in the conventional hip replacement group, while infection and implant loosening were 0 in the two groups. There were no significant differences in anteversion angle, abduction angle and the distance from rotation center to the ischial tuberosity line in 3D printing group as compared to the normal side. The abduction angle and the distance from rotation center to the ischial tuberosity line were significantly different between the two sides in the traditional group.
Application of the 3D printing template for THA with DDH can facilitate the surgical procedure and create an ideal artificial acetabulum placement.
本研究的目的是探讨三维打印导航模板用于成人发育性髋关节发育不良（DDH）全髋关节置换术（THA）的可行性。
将2014年2月至2018年5月因DDH接受THA的25例患者随机分为对照组和干预组。其中，12例接受三维打印导航模板辅助的THA，13例THA未使用导航模板。平均随访时间为1.6年（范围1.2 - 3.8年）。对两组患者进行临床评分和影像学结果评估。
三维打印组的手术时间、术中及术后出血量以及术后6个月的Harris髋关节评分（HHS）均优于传统髋关节置换组患者，而两组的感染和植入物松动情况均为0。与正常侧相比，三维打印组的前倾角、外展角以及旋转中心至坐骨结节连线的距离无显著差异。传统组两侧的外展角以及旋转中心至坐骨结节连线的距离存在显著差异。
三维打印模板应用于DDH的THA可简化手术过程并实现理想的人工髋臼置入。
