scholarly journals Accurate and Minimally Invasive Cervical Pedicle Screw Insertion Procedure Using the Bone Biopsy Needle as Drill Guide

2020 ◽  
Vol 4 (4) ◽  
pp. 358-364
Author(s):  
Tomoaki Koakutsu ◽  
Toshimi Aizawa ◽  
Eiji Itoi
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Bone Biopsy ◽  
Biopsy Needle ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Drill Guide ◽  
Insertion Procedure ◽  
Cervical Pedicle

scholarly journals In vitro study of accuracy of cervical pedicle screw insertion using an electronic conductivity device (ATPS part III)

2009 ◽  
Vol 18 (9) ◽  
pp. 1300-1313 ◽  
Author(s):  
Heiko Koller ◽  
Wolfgang Hitzl ◽  
Frank Acosta ◽  
Mark Tauber ◽  
Juliane Zenner ◽  
...  
Keyword(s):  
Pedicle Screw ◽  
Electronic Conductivity ◽  
In Vitro Study ◽  
Vitro Study ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Cervical Pedicle

scholarly journals Machine-vision image guided C4-C5 unilateral cervical pedicle screw insertion: case report and review of literature

2021 ◽  
Vol 0 ◽  
pp. 0-0
Author(s):  
Tiffany Yeretsian ◽  
Carolyn Lai ◽  
Daipayan Guha ◽  
Joel Ramjist ◽  
Victor X. D. Yang
Keyword(s):  
Case Report ◽  
Machine Vision ◽  
Pedicle Screw ◽  
Review Of Literature ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Image Guided ◽  
Cervical Pedicle

scholarly journals Subaxial cervical pedicle screw insertion with newly defined entry point and trajectory: accuracy evaluation in cadavers

2009 ◽  
Vol 19 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Xiujun Zheng ◽  
Rahul Chaudhari ◽  
Chunhui Wu ◽  
Amir A. Mehbod ◽  
Ensor E. Transfeldt
Keyword(s):  
Pedicle Screw ◽  
Entry Point ◽  
Accuracy Evaluation ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Cervical Pedicle

A Novel Parsimonious Method as Accurate as Extravagant Counterparts: Streolithographically-Modeled Patient-Specific Drill Guide Template for Subaxial Cervical Pedicle Screw Insertion

2020 ◽  
Author(s):  
Mohammadreza Bozorgmanesh ◽  
Babak Siavashi ◽  
Mohammad Javad Zehtab ◽  
Ehsan Pendar ◽  
Yousef Fallah ◽  
...  
Keyword(s):  
Pedicle Screw ◽  
Latency Period ◽  
Patient Specific ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Drill Guide ◽  
Screw Diameter ◽  
Cervical Pedicle ◽  
The Stability ◽  
Drill Guide Template

Background: This study was conducted to develop a modified, parsimonious, faster to produce, easier to implement, and patient-specific drill guide template and also to examine if such a modification might affect the accuracy. Methods: On two cadaveric spines, using reverse engineering, the orientation of pedicles and safe corridors for pedicle screw were determined. A drill template was designed with a surface that was the inverse of the posterior vertebral surface. The drill template was manufactured using rapid prototyping technique. To decrease the costs, the cervical spine corresponding prototypes were not manufactured. In contrary to previous studies, to preserve the stability from posterior element, the templates were designed in such a way that removing interspinous and supraspinous ligaments was not necessary. The accuracy was evaluated by computed tomography (CT) images and classified into three grades of 0: correct placement, 1: malposition by less than a half screw diameter, and 2: malposition by more than a half screw diameter. Results: Of 20 positions available, we inserted 19 screws, because the trajectory of one of the patient-specific drill guide templates was misdirected. The overall accuracy rate for cervical pedicle screw (CPS) placement was 84.2% (16 of 19). Safely inserted screws, combining the grades 0 and 1 categories, were as high as 100%. We observed no “unsafe screw placement”. Conclusions: The total cost and the latency period before the operation was reduced and the interspinous and supraspinous ligaments were preserved. A good applicability and high accuracy was obtained for subaxial CPS (SCPS) insertion.

scholarly journals Improved accuracy of computer-assisted cervical pedicle screw insertion

2003 ◽  
Vol 99 (3) ◽  
pp. 257-263 ◽  
Author(s):  
Yoshihisa Kotani ◽  
Kuniyoshi Abumi ◽  
Manabu Ito ◽  
Akio Minami
Keyword(s):  
Real Time ◽  
Pedicle Screw ◽  
Computer Assisted ◽  
Insertion Technique ◽  
Content Type ◽  
Cervical Pedicle Screw ◽  
Screw Insertion ◽  
Pedicle Screw Insertion ◽  
Cervical Pedicle ◽  
Fine Print

Object. The authors introduce a unique computer-assisted cervical pedicle screw (CPS) insertion technique used in conjunction with specially modified original pedicle screw insertion instruments. The accuracy of screw placement as well as surgery-related outcome and complication rates were compared between two groups of patients: those in whom a computer-assisted and those in whom a conventional manual insertion technique was used. Methods. The screw insertion guiding system consisted of a modified awl, probe, tap and a screwdriver specially designed for a computer-assisted CPS insertion. Using this system, real-time instrument/screw tip information was three dimensionally identified in each step of screw insertion. Seventeen patients underwent CPS fixation in which a computer-assisted surgical navigation system was used. The cervical disorders consisted of spondylotic myelopathy with segmental instability or kyphosis, metastatic spinal tumor, rheumatoid spine, and postlaminectomy kyphosis. The rate of pedicle wall perforation was significantly lower in the computer-assisted group than that in the other group (1.2 and 6.7%, respectively; p < 0.05). The screw trajectory in the horizontal plane was significantly closer to the anatomical pedicle axis in the computer-assisted group compared with the manual insertion group (p < 0.05). This factor significantly reduced the incidence of screw perforation laterally. Complications such as neural damage or vascular injury were not demonstrated in the computer-assisted group (compared with 2% in the manual insertion treatment group). The overall surgery-related outcome was satisfactory. Conclusions. In contrast to the previously reported computer-assisted technique, our CPS insertion technique provides real-time three-dimensional instrument/screw tip information. This serves as a powerful tool for safe and accurate pedicle screw placement in the cervical spine.

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