The guiding significance of pedicle plane CT in lumbar pedicle screw fixation
LIU Zheng
JI Nan
LI Hongwei
SHUI Yan
YU Zhuoli
Abstract：Objective To evaluate the value of pedicle plane CT in the preoperative planning of pedicle screw fixation for lumbar spine surgery. Methods From June 2014 to December 2015, 88 patients in the department of orthopedics of the 202nd Hospital of PLA were treated by internal fixation with posterior screw rod system. In the study group, the lumbar pedi-cle plane CT images were scanned in 45 cases, and the images were transmitted to the medical image storage and communica-tion system (PACS) doctor's diagnostic workstation. The morphological structure of the pedicle was observed, the best point and channel were determined, and the narrowest and narrower width of the pedicle ( PedW) and the height of the pedicle of the vertebral pedicle were measured (PedH), the pre inserted pedicle bone channel full length (TL), the horizontal pedicle screw insertion angle (TSA) and other related parameters were measured, for individual screw, the control group 43 cases of non-screw vertebral received pedicle plane CT scanning, the 2 groups were compared. Results The 2 groups of patients were statistically significant (t=6. 983, t= -8. 707, t= -5. 364, x2=3. 987, P＜0. 05) in the operation time,intraopera-tive blood loss,intraoperative fluoroscopy and other aspects. Conclusion Preoperative pedicle plane CT scan can not only help the patients to understand the morphological structure of the pedicle,but also provide a specific individual,quantification of the pedicle screw entry point and angle of screw,screw length and other aspects of the data,which can reduce the screw mis-placement rate,reduce surgical complications,which is a simple,reliable and cheap method.
Keywords：Lumbar spinePedicle screwsPedicle plane CTBone screwsGuiding significance
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 710-714 )