STEREORADIOGRAPHY IS A PROMISING WAY OF INTRAOPERATIVE NAVIGATION IN SPINE SURGERY
The study presents preliminary results of the use of stereoradiography as a method of intraoperative control and navigation in spine surgery. Currently, two-dimensional radiography is routinely used for navigation and control in spinal surgery. Analysis of flat X-ray images can be associated with significant difficulties in cases of complex anatomy, in X-ray screened areas and in beginning surgeons. The method of stereoradiography is proposed for estimating the volume characteristics of structures having complex geometry and is especially relevant in the context of the summation of images from several objects. The proposed method uses the X-ray parallax effect, which allows three-dimensional images to be obtained after computer-assisted processing. Previously, the method was successfully adapted for puncture cholangiography and showed high accuracy and reliability of navigation. The purpose of this work was to assess the possibility of clinical use of stereoradentgen navigation for the spinal implantation. The authors demonstrated the possibility of qualitative intraoperative visualization of the main anatomical landmarks used for transpedicular implantation without increasing the radiation dose and the duration of the operation. The methodological foundations and techniques improving the quality of stereoradiographic images are presented. The proposed method can be used in performing stabilizing operations on all parts of the spine, including areas of the lower and upper thoracic vertebrae that difficult to vizualize.