3D打印骨折模型在复杂髋臼骨折治疗中的临床应用

Clinical Application of 3D Print Fracture Model in Complex Acetabular Fracture

目的分析3D打印骨折模型联合桥接组合式内固定系统治疗复杂髋臼骨折的临床疗效。方法选取自2015年2月至2017年2月青岛市城阳区人民医院因复杂髋臼骨折就诊的患者为研究对象,将符合要求并愿意参与研究的92例患者实施常规入路手术。随机选出46例患者采用术前辅助3D打印技术(3D组)及桥接组合式内固定系统进行治疗,另46例患者采用传统治疗方案(传统组),对比两种方案对手术相关指标、骨折复位情况、髋关节功能以及并发症的影响。结果 3D组和传统组相比手术时间短,术中出血少,术后引流量少,术后住院时间短,差异有统计学意义(P<0.05)。术后即刻评价骨折复位情况,两组总体复位满意度均较高,3D组略高于传统组,但差异无统计学意义(P>0.05)。术后6个月在疼痛、运动幅度和步行能力三个方面比较,3D组均略高于传统组,但差异无统计学意义(P>0.05),3D组和传统组总分比较差异有统计学意义(P<0.05)。术后6个月3D组并发症总发生率4.35%,较传统组13.04%略低,差异无统计学意义(P>0.05)。结论复杂髋臼骨折术前辅助3D打印技术及桥接组合式内固定系统,可缩短手术用时,降低失血量,利于患者快速恢复。

Objective To analyze the clinical efficacy of 3D print fracture model and bridge-link internal fixation system for complex acetabular fracture.Methods 92 patients with complex acetabular fracturewere enrolled in the study in People's Hospital of Chengyang District from February 2015 to February 2017.The patients were treated with routine surgical approach.46 patients were randomly selectedwith 3D print fracture model before operation and bridge-link internal fixation system(3D group)andthe other 46 patients(Traditional group)were treated with traditional treatment.The operation related indexes,fracture reduction,hip joint function and complications of two groups werecompared.Results Compared with the traditional group,the time of operation was shorter,less bleeding in the operation,less flow rate after operation and short hospitalization time in group 3D(P<0.05).Immediately after surgery,the fracture reduction was evaluated.The total resetting satisfaction of the two groups was high,the 3D group was slightly higher than the traditional group,but there was no significant difference(P>0.05).6 months after surgery,in the three aspects of pain,movement amplitude and walking ability,3D group were slightly higher than the traditional group,but the difference was not statistically significant(P>0.05),but the difference was statistically significant on the total score(P<0.05).6 months after surgery,the total incidence of group 3D was 4.35%,which was slightly lower than that of the traditional group 13.04%(P>0.05).Conclusion The 3D printing techniquewith bridge-link internal fixation system oncomplex acetabular fracture before operation can shorten the time of operation,reduce the amount of blood loss and help the patient to recover quickly.