Multi‐holed biplane drill guide‐assisted percutaneous anterior odontoid screw fixation

2021 ◽  
Author(s):  
Xin Xin ◽  
Guoqing Li ◽  
Chen Yue ◽  
Xinxin Liu
Keyword(s):  
Screw Fixation ◽  
Drill Guide

scholarly journals Evaluation of the efficiency of the C-ring aiming guide for atlantoaxial transarticular screw fixation in toy breed dogs

2019 ◽  
Vol 64 (No. 1) ◽  
pp. 18-24
Author(s):  
J.Y. Park ◽  
Y.R. Kim ◽  
H.J. Choi ◽  
Y.W. Lee ◽  
S.M. Jeong ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Cervical Vertebrae ◽  
Kirschner Wire ◽  
Insertion Time ◽  
Transarticular Screw ◽  
Vertebral Canal ◽  
Transarticular Screw Fixation ◽  
Insertion Angle ◽  
Drill Guide ◽  
Before And After

The goal of the present study was to evaluate the efficiency and safety of the C-ring aiming guide for the atlantoaxial transarticular screw fixation technique in toy breed dogs. Twenty-one adult canine cadavers of toy breed dogs were used in this study. The left and right sides of the cervical vertebrae were randomly assigned to two implant insertion groups: a C-ring aiming guide group and a drill guide group. A 1.2-mm Kirschner wire was inserted into each side by using either a C-ring aiming guide or a drill guide. CT scans were performed before and after surgery. The optimal safe implantation corridor angle and length, the implant insertion angle and length, the implant insertion time and the proportion of the insertion corridor to the optimal corridor were evaluated. Violations to the alar foramen and the vertebral canal also were evaluated. The implant insertion time was twice as long as that observed in the aiming guide group (P < 0.05). The proportion of the insertion angle and length to the optimal angle were not significantly different between groups (P > 0.05). With respect to precision, there was a trend toward less variability in the aiming guide group; however, this difference was not significant (P = 0.09). The violation of the alar foramen was significantly lower in the aiming guide group than in the drill guide group (P < 0.05). Violation to the vertebral canal was detected in one cadaver in the drill guide group but did not occur in the aiming guide group. The use of a C-ring aiming guide was associated with less damage to the alar foramen and the vertebral canal during atlantoaxial transarticular screw fixation in toy breed dogs.

A new drill guide to simplify coraco-clavicular screw fixation

Injury ◽  
1995 ◽  
Vol 26 (8) ◽  
pp. 572-573 ◽  
Author(s):  
M.J.W. Hubble ◽  
G.C. Bannister
Keyword(s):  
Screw Fixation ◽  
Drill Guide

scholarly journals Improving the trajectory of transpedicular transdiscal lumbar screw fixation with a computer-assisted 3D-printed custom drill guide

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3564 ◽  
Author(s):  
Zhen-Xuan Shao ◽  
Jian-Shun Wang ◽  
Zhong-Ke Lin ◽  
Wen-Fei Ni ◽  
Xiang-Yang Wang ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Three Dimensional ◽  
Computer Assisted ◽  
Significant Statistical Difference ◽  
Drill Guide ◽  
Hospital Patients ◽  
Normal Spine ◽  
3D Printed ◽  
Design Software ◽  
Spine Fixation

Transpedicular transdiscal screw fixation is an alternative technique used in lumbar spine fixation; however, it requires an accurate screw trajectory. The aim of this study is to design a novel 3D-printed custom drill guide and investigate its accuracy to guide the trajectory of transpedicular transdiscal (TPTD) lumbar screw fixation. Dicom images of thirty lumbar functional segment units (FSU, two segments) of L1–L4 were acquired from the PACS system in our hospital (patients who underwent a CT scan for other abdomen diseases and had normal spine anatomy) and imported into reverse design software for three-dimensional reconstructions. Images were used to print the 3D lumbar models and were imported into CAD software to design an optimal TPTD screw trajectory and a matched custom drill guide. After both the 3D printed FSU models and 3D-printed custom drill guide were prepared, the TPTD screws will be guided with a 3D-printed custom drill guide and introduced into the 3D printed FSU models. No significant statistical difference in screw trajectory angles was observed between the digital model and the 3D-printed model (P > 0.05). Our present study found that, with the help of CAD software, it is feasible to design a TPTD screw custom drill guide that could guide the accurate TPTD screw trajectory on 3D-printed lumbar models.

Optimal Screw Fixation of Syndesmosis Using a Targeting Drill Guide: A Technical Note

2020 ◽  
Vol 59 (1) ◽  
pp. 206-209
Author(s):  
Dong-Oh Lee ◽  
Jeong-Hyun Yoo ◽  
Woo-Young Choi
Keyword(s):  
Screw Fixation ◽  
Technical Note ◽  
Drill Guide

Iliac Screw Fixation Using Computer-Assisted Computer Tomographic Image Guidance: Technical Note

2011 ◽  
Vol 70 (suppl_1) ◽  
pp. ons16-ons20 ◽  
Author(s):  
John H. Shin ◽  
Daniel J. Hoh ◽  
Iain H. Kalfas
Keyword(s):  
Soft Tissue ◽  
Image Guidance ◽  
Screw Fixation ◽  
Screw Placement ◽  
Computer Screen ◽  
Drill Guide ◽  
Soft Tissue Dissection ◽  
Starting Point ◽  
Tissue Dissection ◽  
Iliac Screw

Abstract BACKGROUND: Iliac screw fixation is a powerful tool used by spine surgeons to achieve fusion across the lumbosacral junction for a number of indications, including deformity, tumor, and pseudarthrosis. Complications associated with screw placement are related to blind trajectory selection and excessive soft tissue dissection. OBJECTIVE: To describe the technique of iliac screw fixation using computed tomographic (CT)-based image guidance. METHODS: Intraoperative registration and verification of anatomic landmarks are performed with the use of a preoperatively acquired CT of the lumbosacral spine. With the navigation probe, the ideal starting point for screw placement is selected while visualizing the intended trajectory and target on a computer screen. Once the starting point is selected and marked with a burr, a drill guide is docked within this point and the navigation probe re-inserted, confirming the trajectory. The probe is then removed and the high-speed drill reinserted within the drill guide. Drilling is performed to a depth measured on the computer screen and a screw is placed. RESULTS: Confirmation of accurate placement of iliac screws can be performed with standard radiographs. CONCLUSION: CT-guided navigation allows for 3-dimensional visualization of the pelvis and minimizes complications associated with soft-tissue dissection and breach of the ilium during screw placement.

Malar Augmentation With Self-drilling Single-Screw Fixation

2000 ◽  
Vol 2 (3) ◽  
pp. 222-225 ◽  
Author(s):  
Neal D. Goldman ◽  
Ramsey Alsarraf ◽  
Gary Nishioka ◽  
Wayne F. Larrabee
Keyword(s):  
Screw Fixation ◽  
Single Screw
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