Modified Stoppa Combined With Kocher-langenbec Approach In The Treatment Of Complex Acetabular Fractures With The Assistance Of 3D Printing

Objective:To discuss the clinical efficacy of improved Stoppa combined with kocher-langenbec approach for the treatment of complex acetabular fractures with the assistance of 3D printing technology.Methods:A retrospective analysis was made on 53 patients with complex acetabular fractures treated by modified Stoppa approach combined with Kocher-Langenbeck approach from April 2013 to April 2018.Among them,24 cases were planned and simulated in detail with the aid of 3D printing technology before operation,and 29 cases were treated by modified Stoppa approach combined with Kocher-Langenbeck approach.The operation time,intraoperative bleeding volume,intraoperative fluoroscopy times and complications of the two groups were recorded.Postoperative functional rehabilitation exercises were guided according to the criteria of rehabilitation diagnosis and treatment of acetabular fracture.Results:There were significant differences in operative time,intraoperative bleeding volume,intraoperative fluoroscopy times and complications between the two groups(P <0.05).53 patients were followed up for 6 to 30 months,with an average of 13.5 months,and bone healing was achieved.The final score of 3-D group and non-3-D group were evaluated by Matta score and Harris score standard.Matta score was used to evaluate the excellent and good rate of 70.8% and 72.4% respectively.Harris score was used to evaluate the excellent and good rate of 66.7% and 65.6% respectively.There was no significant difference between the two groups(P > 0.05).Conclusion:Combined with 3D printing technology,using improved Stoppa combined with K-L approach to treat complex acetabular fractures can make reasonable planning before operation,avoid unnecessary operation during operation,reduce operation time and intraoperative bleeding,improve perioperative safety,and have the characteristics of individualized treatment.