3D打印技术在髋关节置换术后感染Ⅱ期翻修手术中应用

目的 探究3D打印技术在髋关节置换感染的Ⅱ期翻修手术患者中的应用情况.方法 选取2014年7月至2016年7月该院收治的髋关节置换术后感染需要进行Ⅱ期翻修手术21例患者为3D打印组,选取同期未通过3D技术而直接进行的髋关节置换手术21例患者为对照组.CT扫描得到患者髋关节髋臼、股骨等相关数据,利用计算机体外模拟并建模,通过3D技术对模型进行打印,展示患者的髋关节模型并进行手术,术后随访2～3年,比较手术疗效及Harris评分.结果 两组手术时间比较,3D打印组平均(86.4士31.5)min,对照组为(131.7±29.6)min,差异有统计学意义(P＜0.05);Harris髋关节功能评分,3D打印组术前评分为(41.4±7.8)分,3年随访后为(91.2±6.9)分,差异有统计学意义(P＜0.05).结论 3D技术可运用于髋关节置换术后感染Ⅱ期翻修手术,效果良好.

Application of 3D printing technology in the second staged revision of infection after hip replacement

Objective To explore the application of 3D printing technology in the second staged revision of infection after hip replacement.Methods From July 2014 to July 2016,21 patients with postoperative infection after hip replacement needed for phase Ⅱ revision surgery were selected as the 3D printing group,while 21 patients who underwent hip replacement without 3D printing technique were selected as the control group.The acetabulum,femoral and other related data were obtained by CT scanning,using computer simulation and modeling in vitro,3D printing technology was used to print the model,showed the hip joint model and done the operation,after 2 to 3-year-follow-up,compared the effect and the Harris hip joint function score.Results Compared the operation time of the two groups,3D printing group average operation time was (86.4±31.5) min,while the control group was (131.7±29.6) min,the difference was statistically significant (P＜0.05);the Harris hip joint function score of 3D printing group was (41.4±7.8) point before operation,and after three years follow-up the score was (91.2 ± 6.9) point,the difference was statistically significant (P＜0.05).Conclusion 3D printing technology can be applied in the second stage revision surgery of infection after hip replacement,which has effective result.