Feasibility and accuracy of computer-assisted individual drill guide template for minimally invasive lumbar pedicle screw placement trajectory

Injury ◽  
2018 ◽  
Vol 49 (3) ◽  
pp. 644-648 ◽  
Author(s):  
Hongwei Wang ◽  
Yusheng Liu ◽  
Yiwen Zhao ◽  
Guoli Song ◽  
Jun Liu ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Pedicle Screw ◽  
Screw Placement ◽  
Computer Assisted ◽  
Pedicle Screw Placement ◽  
Drill Guide ◽  
Drill Guide Template ◽  
Lumbar Pedicle

A low invasiveness patient’s specific template for spine surgery

2016 ◽  
Vol 231 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Farhad Azimifar ◽  
Kamran Hassani ◽  
Amir Hossein Saveh ◽  
Farhad Tabatabai Ghomshe
Keyword(s):  
Pedicle Screw ◽  
Digital Technology ◽  
Screw Placement ◽  
Patient Specific ◽  
Computer Assisted ◽  
Pedicle Screw Placement ◽  
New Approach ◽  
Additive Manufacturing Technology ◽  
Drill Guide ◽  
Drill Guide Template

Free-hand pedicle screw placement is still conventional in surgery, although it has potentially high risks. The surgical procedures such as pedicle screw placement are usually designed based on medical imaging, but during surgery, the procedures are not normally followed due to the fact that some points are missed in two-dimensional images and seen only during surgery. In this regards, some highly accurate computer-assisted systems have been proposed and are currently used. Moreover, it is possible to reduce or completely avoid hand working by applying modern digital technology. Therefore, using these technologies has remarkable advantages. In this study, we have presented a new approach of pedicle screw placement in the lumbar and sacral regions using a specific drill guide template. The template was created by additive manufacturing technology and was verified in a clinical study as well. The main aim of this research includes the following: design, analyze, manufacture and evaluate the accuracy of a new patient-specific drill guide template, for lumbar pedicle screw placement, and compare the template to the free-hand technique under fluoroscopy supervision. Our results show that the incidence of cortex perforation is substantially reduced compared to existing methods. Finally, we believe that this approach remarkably lowers the incidence of cortex perforation and could be potentially used in clinical applications, particularly in certain selected cases.

scholarly journals A Modified Personalized Image-Based Drill Guide Template for Atlantoaxial Pedicle Screw Placement: A Clinical Study

2017 ◽  
Vol 23 ◽  
pp. 1325-1333 ◽  
Author(s):  
Lianghai Jiang ◽  
Liang Dong ◽  
Mingsheng Tan ◽  
Yingna Qi ◽  
Feng Yang ◽  
...  
Keyword(s):  
Clinical Study ◽  
Pedicle Screw ◽  
Screw Placement ◽  
Pedicle Screw Placement ◽  
Drill Guide ◽  
Drill Guide Template
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