Treatment of pedicle screw internal fixation with computer assisted surgical navigation system for thoracolumbar burst fractures
YAO Guanfeng
WANG Xinjia
WANG Weidong
ZENG Jican
LUO Bin
Abstract：Objective To evaluate the safety and accuracy of pedicle screw internal fixation technique for the treatment of thoracolumbar burst fractures using computer assisted surgical navigation(CASN) system. Methods Clinical data of 56 patients with thoracolumbar burse fractures underwent pedicle screw fixation from January 2009 to January 2011 in the Second Affiliated Hospital of Shantou University Medical College were reviewed retrospectively. There were 26 cases in CASN group and 30 cases in conventional group which performed conventional operation. The safety and accuracy of pedicle screw insertion, operation time, estimate blood loss and clinical results between two groups were analyzed and compared. Results Out of 268 screws 248 were correctly inserted into the pedicles (92.5%). The accuracy of CASN group was 93.6% while in conventional group was 91.7%, there was no statistical difference between two groups (P >0.05). The operation time in CASN group was (2.4 ± 0.4) h while that in conventional group was (2.2 ± 0.7) h, there was no significant difference between two groups (P >0.05). The estimate blood loss in CASN group was (184 ± 49) mL while that in conventional group was (276 ± 81) mL, the difference between two groups had statistical significance (P <0.05). Dynamic flexion-extension X-ray radiographs showed that no abnormal activity in fixation segments, and no loosening or breakage of pedicle screws had been found. Conclusions Pedicle screw internal fixation with CASN system can improve the safety and accuracy of pedicle screw insertion and reduce the estimate blood loss, and obtain good therapeutic effects for patients with thoracolumbar burst fractures.
Keywords：Thoracic vertebraeLumbar vertebraeSpinal fractruesFracture fixationinternalBone screwsNavigation systems
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 69-73 )