个性化3D打印钛合金填充块在复杂髋关节翻修术中应用的可行性及疗效

Feasibility and efficacy of personalized 3D printed titanium alloyfiller in the complex hip joint revision surgery

目的分析在复杂髋关节翻修重建中采用个性化3D打印钛合金填充块的可行性。方法选择2021年3月至2023年1月该院全髋关节置换术后需关节翻修的40例患者,将其分为3D打印组与对照组,各20例。3D打印组给予个性化3D打印钛合金填充块技术进行翻修治疗,对照组采用常规全髋关节翻修治疗,比较2组手术时间、术中出血量、髋关节功能评分、并发症。结果3D打印组手术时间[(120.56±8.13)min]、术中出血量[(312.57±24.65)mL]低于对照组[(132.67±8.27)min、(342.64±25.47)mL],差异均有统计学意义(t=5.720,P<0.001;t=4.647,P<0.001)。治疗后3D打印组髋关节功能评分[(87.69±6.35)分]高于对照组[(72.56±6.27)分],差异有统计学意义(t=9.286,P<0.001);并发症发生率(5.00%)低于对照组(20.00%),差异有统计学意义(χ^(2)=4.706,P=0.030)。结论个性化3D打印钛合金填充块在髋臼侧严重骨缺损髋关节翻修术中的应用效果突出,可节约手术时间,术中出血较少,患者术后髋关节功能改善明显,减少相关并发症的发生。

Objective To analyze the feasibility of using personalized 3D printing titanium alloy filler blocks in the revision and reconstruction of complex hip joint.Methods From March 2021 to January 2023,a total of 40 patients who required joint revision after total hip arthroplasty in the hospital were included in the study and randomly divided into the 3D printing group and the control group,with 20 patients in each group.The 3D printing group was given personalized 3D printing titanium alloy filling block technology for revision treatment,and the control group was given routine total hip joint revision treatment.The operation time,intraoperative blood loss,hip joint function score and complications were compared between the two groups.Results The operation time[(120.56±8.13)min]and intraoperative blood loss[(312.57±24.65)mL]in the 3D printing group were lower than those in the control group[(132.67±8.27)min]and[(342.64±25.47)mL],and the differences were statistically significant(t=5.720,P<0.001;t=4.647,P<0.001).After treatment,the hip joint function score[(87.69±6.35)points]in the 3D printing group was higher than that in the control group[(72.56±6.27)points],and the difference was statistically significant(t=9.286,P<0.001);the incidence of complications(5.00%)was lower than that in the control group(20.00%),and the difference was statistically significant(χ^(2)=4.706,P=0.030).Conclusion The application of personalized 3D printed titanium alloy filling blocks in hip joint revision surgery for severe acetabular bone defects is outstanding,which can save operation time,reduce intraoperative bleeding,significantly improve postoperative hip joint function,and reduce the occurrence of related complications.