Analysis of therapeutic effect of three-dimensional printing technology assisted open reduction and internal fixation for Tile C-type pelvic fractures
Objective To analyze the therapeutic effect of three-dimensional(3D)printing technology assisted open reduction and internal fixation for Tile C-type pelvic fractures.Methods A retrospective analysis was performed on 40 cases of Tile C-type pelvic fractures treated with open reduction and internal fixation surgery from April 2018 to May 2022.Among these,20 cases were treated with 3D printing technology and computer-assisted(Mimics 17.0)simulated surgery(observation group),and 20 cases with traditional surgical approach open reduction and locking plate internal fixation surgery(control group).The opera-tion time,intraoperative blood loss,intraoperative fluoroscopy frequency,screw misplacement rate,reduction quality,postopera-tive complication rate,and pelvic function recovery were recorded and compared between the two groups.Results The obser-vation group had better operation time,intraoperative blood loss,intraoperative fluoroscopy frequency,and screw misplacement rate than the control group,and the differences were statistically significant(P<0.05).In the observation group,7 cases had ex-cellent reduction quality,12 cases good,and 1 case fair.In the control group,6 cases had excellent reduction quality,8 cases good,4 cases fair,and 2 cases poor,no statistically significant difference in the reduction quality between the two groups(Z=-1.270,P=0.204).There was 1 case of postoperative nerve injury and 1 case of body movement disorder in the observation group while in the control group there was 1 case of postoperative nerve injury,1 case of lower limb deep vein thrombosis,2 cases of infection,and 2 cases of body movement.There was no statistically significant difference in the incidence of postopera-tive complication rate between the two groups(P=0.235).Forty cases were followed up for at least 12 months after surgery,the Majeed scores at 3,6,and 12 months after surgery were higher than those before surgery in both groups,with statistical signifi-cance(P<0.05).The Majeed scores of the observation group were higher than those of the control group at 3,6,and 12 months after surgery,and the difference was statistically significant(P<0.05).Conclusion The clinical efficacy of 3D printing technol-ogy assisted open reduction and internal fixation in the treatment of Tile C-type pelvic fractures is satisfactory.Three-dimensional printing technology can simulate the operationpreoperatively and provide patients with more personalized treatment protocols.The surgery is more efficient and safer,and is recommended for broader clinical application.