A digital fabrication method of condylar fracture nail retention surgical guide

Abstract

The invention discloses a digital manufacturing method of a condylar fracture screw fixation surgical guide, comprising the following steps: step 1: scanning the patient's head through CBCT to obtain DICOM data of the patient's upper and lower jaw hard tissues; step 2: using open medical images The software MIMICS completes the virtual reduction surgery for condylar fractures, anatomically reduces the free end of the fracture, and designs the direction and depth of the retention screws; Step 3: Use reverse engineering software to design the surgical guide; Step 4: Use the 3D printer to place the designed surgical guide The 3D model is printed out. The present invention designs the retention direction and depth of long screws by combining CBCT three-dimensional images and simulating reset operation by computer, and then uses 3D printing technology to make a surgical guide plate, which can not only effectively realize precise control of surgery, reduce surgical risk, but also Minimize the difficulty of surgery, improve the efficiency of surgery, and effectively reduce the cost of surgery, which is convenient for the application and promotion of this technology in clinic.

Description

technical field [0001] The invention relates to the technical field of surgical guide plates, in particular to a digital manufacturing method for condylar fracture screw fixation surgical guide plates. Background technique [0002] Mandibular condylar fractures caused by traffic accidents or falls are very common clinically. Sagittal condylar fractures are the most common type of condylar fractures. Due to the small size of the free end of the fracture, it is difficult to fix, and a large number of patients have to be surgically removed. bones. In response to this clinical problem, in recent years, a single long screw has been used to fix sagittal condylar fractures and achieved good results. This technology is realized by combining computer model virtual surgery and surgical navigation technology, which greatly improves the surgical reduction. The success rate and accuracy of the fixation have achieved good clinical results; among them, the fixation direction and depth of ...

AI Technical Summary

Problems solved by technology

In response to this clinical problem, in recent years, a single long screw has been used to fix sagittal condylar fractures and achieved good results. This technology is realized by combining computer model virtual surgery and surgical navigation technology, which greatly improves the surgical reduction. The success rate and accuracy of the fixation have achieved good clinical results; among them, the fixation direction and depth of the long screw are the key to the success of the operation, but because the navigation system is not widely used in primary hospitals and the cost of use is high, it cannot be used. Effective clinical application and promotion of this technology in primary hospitals. Therefore, a new technology that does not rely on navigation systems but can guarantee surgical results is urgently needed

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