BACKGROUND:Due to variation of spinal anatomic structure, vertebral body rotation, absence of vertebral body, and spinal canal deformation in patients with scoliosis, the deviation of pedicle screw placement can induce catastrophic results. Recently, with the wide application of pedicle screw and the continuous development of computer navigation, scoliosis surgery becomes more accurate and safe.
OBJECTIVE:To review the existing problems and advantages of Iso-C arm three-dimensional (3D) navigation system for guiding internal fixation of pedicle screw implantation in the treatment of scoliosis.
METHODS: The first author searched PubMed (http://www.ncbi.nlm.nih.gov/PubMed) and CNKI (http://www.cnki.net/) for articles published until December 2012. The key words were “computer navigation, scoliosis, pedicle screw”. The literatures with abstracts containing above key words were retrieved. Totaly more than 50 articles were found, and 13 articles were accorded with the inclusion criteria.
RESULTS AND CONCLUSION: Iso-C arm 3D navigation system for guiding internal fixation of pedicle screw implantation in the treatment of scoliosis had obvious advantages. It fuly combined the advantages of CT 3D navigation and intraoperative X-ray navigation, and can quickly and accurately capture the image data. Real time display of images could ensure the safety of repair operation. Automatic registration function of Iso-C arm 3D navigation undoubtedly improves the efficiency and accuracy of the repair, and helps physicians with more accurate and safe ways to carry out a variety of complex scoliosis surgery.