Efficacy of Transosseous Tunnel Placement for Double Endobutton Platet in the Distal Tibiofibular Syndesmosis Reconstruction :A Three-Dimensional Printing Guide Design Technology

Abstract

Background To search for a method of accurate transosseous tunnel drilling for the distal tibiofibular syndesmosis based on three-dimensional (3D) printing technology to design a guide design and to assess its veracity. Methods CT scan and MRI data of 150 patients with distal tibiofibular syndesmosis injury in the Affiliated Hospital of traditional Chinese medicine of Southwest Medical University were selected. Using Mimics software to reconstruct inferior tibiofibular syndesmosis CT data. Design 2 The non-collinear tunnel is superimposed on the three-dimensional model, and a virtual drilling is performed between the tibia and the fibula using a double inner gusset. Then, in the Geomagic Studio software model, an elliptical plane is calculated and extracted as a guide design for precise drilling. Then put the design and the 3D inferior tibiofibular syndesmosis model together for 3D printing. 8 parameters were measured, and the effects of the virtual model and the actual model and the guide rail design were compared. Results We compared 8 parameters of the 3D virtual model and actual model successfully. No differences were significantly found between the real and virtual bone tunnels in measurements. (P > 0.05). Conclusions The veracity of transosseous tunnel placement for distal tibiofibular syndesmosis reconstruction combined with 3D printing guide design technology in the distal tibiofibular syndesmosis is reliable.