Three-dimensional spiral CT measurement of atlantal pedicle and its clinical application

Xie, Wengui; Gao, Pengfei; Ji, Lixin

doi:10.3892/etm.2017.4710

Cited by 7 publications

(5 citation statements)

References 14 publications

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“…Therefore, the expansive pedicle screw treatment of osteoporosis patients with lumbar compression fractures is not a universal method, and the strict control over indications and the active treatment of osteoporosis are of great significance in improving the prognosis of patients. These results are in accordance with previous studies ( 15 , 16 ).…”

Section: Discussionsupporting

confidence: 94%

Application value of expansive pedicle screw in the lumbar short‑segment fixation and fusion for osteoporosis patients

et al. 2018

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Clinical value of expansive pedicle screw in lumbar short-segment fixation and fusion for patients with osteoporosis was investigated. A total of 80 patients with lumbar compression fracture but without obvious nerve compression were selected and divided into the observation group (n=40) and the control group (n=40) using a random number table. The observation group used the expansive pedicle screw, and the control group received conventional pedicle screw fixation and bone graft fusion. In the observation group, the operation and hospitalization time after operation were shorter and the intraoperative bleeding amount was less than that in control group (p<0.05). At 1 week, 1, 3 and 6 months after operation, the observation group had better straight leg raising test (SLRT) scores, higher lower limb sensory scores but lower visual analogue scale (VAS) scores than control group (p<0.05). Besides, the proportions of postoperative infection, dural mater tear, nerve root injury and spinal cord injury during operation in the observation group were lower than those in the control group (p<0.05), and the bone graft fusion rates at 3 and 6 months after operation were obviously superior to those in control group (p<0.05). Moreover, after operation, the spinal stenosis rate in the observation group was lower than that in control group (p<0.05), the vertebral height ratio was larger than that in control group (p<0.05), and the Cobb's angle was smaller than that in the control group (p<0.05). In addition, there was a negative correlation between bone mineral density (BMD) and hospitalization time after operation in the observation group (p<0.05). In conclusion, the internal fixation with expansive pedicle screw for osteoporosis patients with lumbar compression fracture is characterized by short operation time, less intraoperative bleeding, few complications, quick recovery of postoperative neurological function and satisfactory surgical effect. However, reasonable intervention in osteoporosis is also necessary.

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Section: Discussionsupporting

confidence: 94%

Application value of expansive pedicle screw in the lumbar short‑segment fixation and fusion for osteoporosis patients

et al. 2018

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“…Therefore, these previous studies were different from the current study. There have also been studies guiding the placement of pedicle screws according to the height of the atlas pedicle, but few reports investigating the effect of vertebral artery sulcus on pedicle screw placement [21][22][23][24].…”

Section: Discussionmentioning

confidence: 99%

The morphological classification and clinical significance of atlas vertebral artery sulcus based on computed tomography three-dimensional reconstruction

Ding-xiang¹,

Li²,

Chen³

et al. 2023

Surg Radiol Anat

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Objective The purpose of this study was to research the morphological classification and clinical significance of vertebral artery sulcus on atlas based on CT three-dimensional reconstruction. Methods Three-dimensional reconstruction images of 300 adult atlases were collected. A total of 600 atlas vertebral artery sulci were selected in this study. The parameters required for placement of C1 pedicle screw, including depth of grinding drilling (ao), width (cd), length ab), height (H), lateral wall thickness (L1), inner wall thickness (L2), medial angle (∠α), and the cephalad angle to the transverse plane of atlas pedicle (∠β), were measured. Results CT three-dimensional reconstruction images showed that there were five types of atlas vertebral artery sulci: no process type (n = 494 cases, 82.33%), upper process type (n = 29, 4.83%), lower process type (n = 25, 4.17%), double process type (n = 19, 3.17%), and posterior ring type (33, 5.50%). One-way ANOVA tests showed that the five groups differed significantly in the parameter of ao, L2, H, ∠α and ∠β. One-way ANOVA with the LSD post hoc tests showed that the parameter ao of the group of no process type was less than that of the group of upper or lower process type (P < 0.05), and ao of the group of lower process or posterior ring type was less than that of the group of the upper type (P < 0.05). The parameter of ao of the male group was larger than that of the female group. Conclusion No process type of the atlas vertebral artery sulcus was the most common, and the medial angle and cephalad angle of the atlas pedicle in this type were the smallest. When pedicle screws are inserted, the above two angles should not be too large. Male's ao was larger than that of female's. All these findings should be considered to avoid the deviation of the nail track.

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“…Some scholars [12,19,20,21]described the morphology of atlas vertebral artery groove, but the classi cation was different. There were also studies to guide the placement of pedicle screws according to the height of atlas pedicle [22][23][24][25]; but few reports on pedicle screw placement guided by vertebral artery groove classi cation.…”

Section: Discussionmentioning

confidence: 99%

The morphological classification and clinical significance of atlas vertebral artery sulcus based on Computed Tomography three-dimensional reconstruction

Ding-xiang

Chen

et al. 2022

Preprint

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Objective The purpose of this study was to research the morphological classification and clinical significance of Vertebral artery groove on atlas based on CT three-dimensional reconstruction.Methods Methods Three-dimensional reconstruction images of 300 adult atlases were collected. A total of 600 atlas vertebral artery sulcuses were selected in this study. The depth required for grinding drilling(ao), width ( cd ), length ( ab ), height ( H ), lateral wall thickness ( L1 ), inner wall thickness ( L2 ), medial angle (∠α) and the cephalad angle to the transverse plane of atlas pedicle (∠β) were measured.Results CT three-dimensional reconstruction images showed that there were five types of atlas vertebral artery sulcus : no process type (494, 82.33%), upper process type (29,483 % ), lower process type(25,4.17%), double process type(19,3.17%), posterior ring type(33, 5.50 % ). the ao of no protrusion type was the shortest ; L2 of the lower protrusion type was the smallest ; L2 was greater than L1 ; the double protrusion type had the smallest H ; the ∠ α and ∠ β of no protrusion type werethe smallest.Conclusion Among the five types, the no protruding type was the most ( 83.33 % ), and the ∠ α and ∠ β of no protrusion type were the smallest. When screw pedicle screws were inserted, the above two angles should not be too large. Male’s ao was longer than female’s. When using high speed grinding drill to drill the opening, male needsed to drill deeper than female’s, otherwise the nail track was easy to deviate.

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Three-dimensional spiral CT measurement of atlantal pedicle and its clinical application

Cited by 7 publications

References 14 publications

Application value of expansive pedicle screw in the lumbar short‑segment fixation and fusion for osteoporosis patients

Application value of expansive pedicle screw in the lumbar short‑segment fixation and fusion for osteoporosis patients

The morphological classification and clinical significance of atlas vertebral artery sulcus based on computed tomography three-dimensional reconstruction

The morphological classification and clinical significance of atlas vertebral artery sulcus based on Computed Tomography three-dimensional reconstruction

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