In vitro study of accuracy of subaxial cervical pedicle screw insertion using calipers based on the gravity line

Yao, Xiang; Liu, Shiqing

doi:10.1371/journal.pone.0181324

Cited by 4 publications

(5 citation statements)

References 28 publications

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“…However, owing to the inherent differences in the spinal structure between the lumbar, cervical, and upper thoracic regions, applying the same criteria for accuracy evaluation in this study was challenging. Consequently, we adapted the Neo classification system for cervical pedicle screws to assess the accuracy of pedicle screw placement 16 , 19 . The evaluation involved categorizing the clinical grades into two groups: acceptable, defined as a grade of ≤ 1 for the Neo classification, and poor, indicated by a grade > 2 (Supplementary Fig.…”

Section: Methodsmentioning

confidence: 99%

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Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Ryu,

Ha,

Yoon

et al. 2024

Sci Rep

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This cadaveric study aimed to evaluate the safety and usability of a novel robotic system for posterior cervical pedicle screw fixation. Three human cadaveric specimens and C2-T3 were included. Freshly frozen human cadaver specimens were prepared and subjected to robot-assisted posterior cervical pedicle screw fixation using the robotic system. The accuracy of screw placement, breach rate, and critical structure violations were evaluated. The results were statistically compared with those of previous studies that used different robotic systems for cervical pedicle screw fixation. The robotic system demonstrated a high accuracy rate in screw placement. A significant number of screws were placed within predetermined safe zones. The total entry offset was 1.08 ± 0.83 mm, the target offset was 1.86 ± 0.50 mm, and the angle offset was 2.14 ± 0.77°. Accuracy rates comparable with those of previous studies using different robotic systems were achieved. The system was also feasible, allowing precise navigation and real-time feedback during the procedure. This cadaveric study validated the safety and usability of the novel robotic system for posterior cervical pedicle screw fixation. The system exhibited high precision in screw placement, and the results support the extension of the indications for robot-assisted pedicle screw fixation from the lumbar spine to the cervical spine.

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Section: Methodsmentioning

confidence: 99%

“…Additionally, the GRS, Neo, and Heary grades were used for postoperative accuracy analysis 19 , 21 . However, technical issues concerning file compatibility, trajectory file processing, and image analysis impede postoperative accuracy analyses in some instances.…”

Section: Methodsmentioning

confidence: 99%

Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Ryu,

Ha,

Yoon

et al. 2024

Sci Rep

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show abstract

“…Additionally, the GRS, Neo, and Heary grades were used for postoperative accuracy analysis [19,20]. However, technical issues concerning le compatibility, trajectory le processing, and image analysis impede postoperative accuracy analyses in some instances.…”

Section: Accuracy Evaluationmentioning

confidence: 99%

“…However, owing to the inherent differences in the spinal structure between the lumbar, cervical, and upper thoracic regions, applying the same criteria for accuracy evaluation in this study was challenging. Consequently, we adapted the Neo classi cation system for cervical pedicle screws to assess the accuracy of pedicle screw placement [16,19]. The evaluation involved categorizing the clinical grades into two groups: acceptable, de ned as a grade of ≤ 1 for the Neo classi cation, and poor, indicated by a grade > 2 (Supplementary Figure S1).…”

Section: Accuracy Evaluationmentioning

confidence: 99%

Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Ryu,

Ha,

Yoon

et al. 2023

Preprint

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This cadaveric study aimed to evaluate the safety and usability of a novel robotic system for posterior cervical pedicle screw fixation. Two human cadaveric specimens and C2-T3 were included. Freshly frozen human cadaver specimens were prepared and subjected to robot-assisted posterior cervical pedicle screw fixation using the robotic system. The accuracy of screw placement, breach rate, and critical structure violations were evaluated. The results were statistically compared with those of previous studies that used different robotic systems for cervical pedicle screw fixation. The robotic system demonstrated a high accuracy rate in screw placement. A significant number of screws were placed within predetermined safe zones. The total entry offset was 1.08 ± 0.83 mm, the target offset was 1.86 ± 0.50 mm, and the angle offset was 2.14 ± 0.77°. Accuracy rates comparable with those of previous studies using different robotic systems were achieved. The system was also feasible, allowing precise navigation and real-time feedback during the procedure. This cadaveric study validated the safety and usability of the novel robotic system for posterior cervical pedicle screw fixation. The system exhibited high precision in screw placement, and the results support the extension of the indications for robot-assisted pedicle screw fixation from the lumbar spine to the cervical spine.

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“…In early stages, due to the lack of distinctive instruments for ATPS fixation, the AXIS plates and AO reconstruction plates were mostly used as the substitutes [9,20,21]. In the clinic, Zhao et al [21] found that postoperative dysphagia in a few patients might be related to the apparent protrusion of plates and screws on the bone surface.…”

Section: Distinctive Instruments For Atps Fixationmentioning

confidence: 99%

Progress of the Anterior Transpedicular Screw in Lower Cervical Spine: A Review

Zhang

Gao

et al. 2019

Med Sci Monit

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The anterior transpedicular screws (ATPS) fixation is a valuable discovery in the field of lower cervical spine (LCS) reconstruction, as it has the advantages of both anterior and posterior approaches. In recent years, with in-depth research on ATPS fixation related to anatomy, biomechanical tests, and clinical applications, its firm stability and excellent biomechanical properties have been recognized by more and more surgeons. Although ATPS fixation has been gradually applied in clinic settings under the promotion of emerging distinctive instruments, its long-term efficacy still needs to be further clarified due to the lack of large sample size studies and long-term follow-up. Nevertheless, it is believed that with the maturity of digital devices and the development of precision medicine, ATPS fixation has a promising prospect.

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In vitro study of accuracy of subaxial cervical pedicle screw insertion using calipers based on the gravity line

Cited by 4 publications

References 28 publications

Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Feasibility and safety report on robotic assistance for cervical pedicle screw fixation: a cadaveric study

Progress of the Anterior Transpedicular Screw in Lower Cervical Spine: A Review

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