Applied Value Of 3D Printing Technique In Surgical Treatment Of Acetabular Fractures

Purposes:To explore the effect of 3D printing technique for the surgical treatment of acetabular fractures and provide reference for improving clinical curative effect.Methods:Retrospective analysis from December 2006 to December 2016 10 years of hospital admission traumatic injury led to acetabular fractures,and meet the traditional surgical evidence of 94 patients with medical records,included in the traditional surgical group,and according to the Judet-Letournel classification was divided into simple fracture group 43 cases and complex fracture group 51 cases;and since 2017,our department accommodates surgical evidence of acetabular fractures in 46 patients,and all patients with 3D printing technology assisted surgery,Into the 3D printing technology-assisted surgery group,and according to the Judet-Letournel classification of acetabular fractures were divided into 25 cases of simple fracture group and complex fracture group of 21 cases,the simple fracture group were compared between the traditional surgery group and 3D printing technology The operation time,intraoperative blood loss,postoperative drainage volume,incision infection rate and surgical reduction effect and postoperative hip joint function recovery were compared between the two groups to observe whether there was any loss of postoperative reduction or not in the two groups.At the same time,Patients in the traditional surgery group and 3D printing technology-assisted surgery group differences in the above indicators.Further research is being conducted on which 3D printing technology is most valuable in the simple and complex types of acetabular fractures.Results:1.Simple fracture group of two different surgical methods of postoperative and postoperative basic statistical analysisIn simple fracture patients,the operation time,intraoperative blood loss,perioperative blood transfusion and the number of intraoperative fluoroscopy and postoperative drainage were not significantly different between the traditional surgery group and the 3D printing assisted surgery group(P> 0.05).2.Complicated fracture group two different surgical methods during and after surgerybasic statistical analysisIn patients with complex fractures,the operation time of patients in the 3D printing-assisted surgery group was significantly shorter than that in the conventional surgery group [(172.69 ± 42.02)min vs(231.05 ± 71.54)min],intraoperative blood loss(1082.21 ± 318.42)ml vs 1532.69 ± 386.96)ml.The blood transfusion amount during perioperative period was significantly higher than that of the conventional operation(872.09± 204.99 ml vs 1329.85 ± 604.12 ml)and intraoperative fluoroscopy(8.16 ± 2.98 vs 11.49 ±3.28)There was no significant difference between the two groups(P <0.05).There was no significant difference between the two groups after drainage(P> 0.05).3.simple fracture patients two different surgical imaging results analysisIn the patients with simple fracture,there was no significant difference in the results of3 months after operation in the 3D-printing-assisted surgery group(P> 0.05),in which the total effective rate was 95.35% in the conventional surgery group.The total effective rate in the 3D-printing assisted surgery group The effective rate was 96.00%,there was no significant difference between the two groups(P> 0.05).4.Complicated fractures in patients with two different surgical imaging results analysisAs shown in Fig.4,in the patients with complex fractures,there was significant difference between the two groups in the follow-up of 3 months after operation(P <0.05),and the total effective rate in the 3D-printing assisted surgery group was 95.24 %,Which was higher than70.59% of the traditional operation group,there was significant difference between the two groups(P <0.05).5.Simple fracture patients with two different surgical methods of postoperative functional recovery of hip comparisonIn patients with simple fractures,the efficacy of 3-month follow-up of patients with 3D printing assisted surgery was not significantly different from that of the traditional surgery group(P> 0.05).The excellent and good rate of hip joint function recovery was 86.05 %.The excellent and good rate of hip joint function recovery in 3D-assisted surgery group was80.00%.There was no significant difference between the two groups(P> 0.05).6.Complicated fractures in patients with two different surgical methods to compare the effect of hip joint function recoveryThere was a significant difference in the functional recovery of the hip joint between the 3D-printing-assisted surgery group and the conventional surgery group at 3-month follow-up(P <0.05),and the recovery of hip joint function in the 3D printing techniqueassisted surgery group was excellent The rate was 66.67%,which was significantly higherthan 43.14% of the patients in the traditional operation group.Statistical differences between the two groups were statistically significant(P <0.05).7.Simple fractures in patients with different surgical analysis of postoperative complicationsThe incidences of postoperative iatrogenic neurological symptoms,traumatic arthritis and heterotopic ossification were not significantly different between patients in the 3D printing group and those in the conventional surgery group(P> 0.05).8.Complicated fracture patients with different surgical methods of postoperative complications analysisThe incidences of postoperative iatrogenic neurological symptoms,traumatic arthritis and heterotopic ossification in patients with 3D fracture in the complex fracture group were not significantly different from those in the conventional surgery group(P> 0.05).The incidence of incision infection in patients undergoing 3D printing assisted surgery was significantly lower than that in the conventional surgery group(P <0.05).Conclusion:The 3D printing technique of assisted surgical treatment of simple acetabular fractures had no significant effect on operation time,intraoperative blood loss,perioperative blood transfusion,intraoperative perspective and postoperative drainage;and 3D printing technology for patients with complicated acetabular fractures auxiliary Surgical treatment can significantly shorten the operation time,reduce intraoperative blood loss and perioperative blood transfusion,and reduce the number of intraoperative fluoroscopy;3D printing technology can reduce the risk of postoperative wound infection,regardless of the use of complicated surgical treatment of acetabular fractures.