CT-based three-dimensional reconstruction navigation technique assisted pedicle screw placement in lumbar and sacral bone

doi:10.3969/j.issn.2095-4344.2015.09.023

Abstract

Abstract:

BACKGROUND: Pedicle screw fixation techniques have been widely used in the treatment of lumbar and sacral disease, such as trauma, deformity, tumor and degeneration. How to improve the accuracy of screw placement is a hot topic. CT-based three-dimensional reconstruction navigation technique provides real-time, multi-perspective, three-dimensional visualization of lumbar and sacral anatomy, and surgeons can perform the pedicle screw insertion procedures confidently with increase of accuracy and safety.
OBJECTIVE: To study the clinical value of CT-based three-dimensional reconstruction navigation technique in the application of lumbar and sacral pedicle screw placement.
METHODS: A total of 203 patients with lumbar and sacral diseases, including lumbar fracture, lumbar spondylolysis and lumbar spinal stenosis, were recruited from Department of Spine & Osteopathy, the First Affiliated Hospital of Guangxi Medical University between July 2008 and November 2014. Patients received pedicle screw placement in lumbar and sacral bone under the guidance of CT-based three-dimensional reconstruction navigation. Postoperative X-ray films and three-dimensional CT scan of lumbar bone were routinely examined in each patient. The accuracy of pedicle screw insertion was evaluated with postoperative CT scan according to Andrew classification.
RESULTS AND CONCLUSION: A total of 1 088 screws were inserted in the lumbar and sacral bone. The accuracy of pedicle screw insertion was rated as grade I in 1 068 screws (98.2%) according to postoperative CT scan. 152 cases were followed up for average 12 months without any complications, such as internal fixator displacement and rupture. Preoperative CT-based three-dimensional reconstruction navigation technique provides three-dimensional anatomical information, assists to develop pedicle screw insertion plan, enhances the accuracy and further improves the safety of pedicle screw insertion.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

全文链接：

Key words: Internal Fixators, Imaging, Three-dimensional, Follow-Up Studies

CLC Number:

R318

Chen Xiao-ming, Chen Qian-fen, Xiao Zeng-ming, Zong Shao-hui. CT-based three-dimensional reconstruction navigation technique assisted pedicle screw placement in lumbar and sacral bone[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(9): 1447-1451.

Figures/Tables 1

References

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