Application Research Of Digital Simulation Fracture Reduction Combined With 3D Printing Technology In Assisting Ankle Fracture Surgery

Background: Ankle fractures are the most common intra-articular fractures of weight-bearing joints,accounting for 9% of all fractures.If treated improperly or even appropriately,10% of patients with ankle fractures will experience complications,such as post-traumatic arthritis,limited ankle mobility,and chronic ankle pain.With the application of digital orthopedics and precision medicine,as well as the increasing complexity of surgical decision-making,digital simulation of surgery and three-dimensional(3D)printing in surgery is a promising new tool for surgical planning,which has the potential to have a huge impact in the field of surgery.Digital simulated surgery and 3D models allow surgeons to better visualize anatomical structures,helping to plan and perform complex operations.However,it is not yet clear how to best utilize this technology and whether it will lead to better results.Purpose: In view of the current controversies and deficiencies in clinical research,we conducted relevant research to determine whether digital simulation surgery combined with 3D printing technology in ankle fracture surgery can improve the accuracy of plate screws,shorten the operation time,and reduce intraoperative blood loss.,Improve the excellent and good rate of functional prognosis of patients with ankle fractures.Methods: A prospective randomized controlled trial(RCT)was conducted in a prospective randomized controlled trial(RCT)with 60 patients with ankle fractures in the Department of Traumatology and Orthopedics selected from November 2019 to 2020.9.At the same time,a single-blind(patient-blinded)trial was used.Randomly divided into two types by random number method,30 cases in the experimental group(using digital simulation fracture reduction combined with 3D printing technology),and 30 cases in the control group(traditional surgery).Record the amount of intraoperative blood loss(ml),operation time(min),number of intraoperative X-rays,days of hospitalization,postoperative complications: joint instability,incision infection,deformity healing,number of people who lost reduction,and painful vision Visual analogue scale(VAS)and American Orthopaedic Foot &Ankle Society(AOFAS)ankle and hind foot scores.Results: The operation time(63.1±7.5),intraoperative blood loss(50.6±9.5),and the number of X-ray projections(7.3±4.0)in the experimental group were significantly lower than those in the traditional operation group(73.5±9.8)and intraoperative blood loss(67.3±15.4),the number of X-ray projections(9.5±3.9),the two groups had statistically significant differences in operation time,intraoperative blood loss,and the number of X-ray projections(P<0.05).The VAS scores of the experimental group were(2.97±1.6),(1.80±0.9),and(0.90±0.7)during the follow-up visit for the first 1,3,and 6 months after the operation.The VAS scores of the traditional group were(3.10±1.5),(1.53±0.6),(0.63±0.7),there was no statistically significant difference between the two groups(P>0.05).The AOFAS scores of the experimental group were(75.0±9.2),(79.9±6.8),(86.4±3.7)at the 1,3,and 6 months postoperative follow-up,respectively,and the AOFAS scores at the 1,3,and 6 months postoperative follow-up of the traditional group Respectively(76.0±9.2),(82.2±5.5),(87.0±4.0),there was no statistically significant difference between the two groups(P>0.05).During the 1-6 months follow-up,the incidence of joint instability,incision infection,malunion,and loss of reduction was not statistically significant in the experimental group and the control group(P>0.05).Conclusion: Digital simulation surgery combined with 3D printing technology can speed up the operation time,reduce intraoperative blood loss,and reduce the number of intraoperative X-rays.3D printing technology can promote the surgical treatment of ankle fractures without increasing adverse events.