Results 11 to 20 of about 14,372 (165)

The Optimal Screw Length of Lumbar Pedicle Screws during Minimally Invasive Surgery Fixation: A Computed Tomography-Guided Evaluation of 771 Screws [PDF]

Asian Spine Journal, 2019
Study Design A retrospective study of radiographic parameters of patients who underwent lumbar spinal pedicle screw insertion. Purpose The optimal length of pedicle screws is often determined by the lateral radiograph during minimally invasive surgery ...
Min Jia Chua, Shiblee Siddiqui, Chun Sing Yu, Colum Patrick Nolan, Jacob Yoong-Leong Oh   +4 more
doaj   +1 more source

Evaluation of an Injectable Biphasic Calcium Sulfate/Hydroxyapatite Cement for the Augmentation of Fenestrated Pedicle Screws in Osteoporotic Vertebrae: A Biomechanical Cadaver Study

Journal of Functional Biomaterials, 2022
Cement augmentation of pedicle screws is one of the most promising approaches to enhance the anchoring of screws in the osteoporotic spine. To date, there is no ideal cement for pedicle screw augmentation.
Xinggui Tian, Deepak B. Raina, Corina Vater, David Kilian, Tilman Ahlfeld, Ivan Platzek, Ute Nimtschke, Magnus Tägil, Lars Lidgren, Alexander Thomas, Uwe Platz, Klaus-Dieter Schaser, Alexander C. Disch, Stefan Zwingenberger   +13 more
doaj   +1 more source

Efficacy and safety for combination of t-EMG with O-arm assisted pedicle screw placement in neurofibromatosis type I scoliosis surgery

Journal of Orthopaedic Surgery and Research, 2021
Background Due to the characteristics of neurofibromatosis type I (NF-1) scoliosis, the precise placement of pedicle screws still remains to be a challenge.
Xiexiang Shao, Zifang Huang, Jingfan Yang, Yaolong Deng, Junlin Yang, Wenyuan Sui   +5 more
doaj   +1 more source

The feasibility of a new self-guided pedicle tap for pedicle screw placement: an anatomical study

BMC Musculoskeletal Disorders, 2023
Purpose To investigate the safety and accuracy of applying a new self-guided pedicle tap to assist pedicle screw placement. Methods A new self-guided pedicle tap was developed based on the anatomical and biomechanical characteristics of the pedicle ...
Yongtao Liu, Xiaoji Zhou, Yuan Li, Peng Wang   +3 more
doaj   +1 more source

Effect of the intermediate pedicle screws and their insertion depth on sagittal balance and functional outcomes of lumbar fracture

Frontiers in Surgery, 2022
ObjectiveThis study aimed to examine the effect of the intermediate pedicle screws and their insertion depth on sagittal balance and functional outcomes of lumbar fracture.MethodsThis study reviewed 1,123 patients with lumbar fractures between January ...
Lei Deng, Junxin Zhang, Quan Zhou, Yifei Zheng, Xi Hua, Xiayu Hu, Hao Liu, Zhonglai Qian   +7 more
doaj   +1 more source

Bilateral Pedicle and Crossed Translaminar Screws in C2 [PDF]

Asian Spine Journal, 2015
Multiple techniques exist for the fixation of C2, including axial pedicle screws and bilateral translaminar screws. We describe a novel method of incorporating both the translaminar and pedicle screws within C2 to improve fixation to the subaxial spine ...
Daniel Mendelsohn, Nicolas Dea, Robert Lee, Michael C. Boyd   +3 more
doaj   +1 more source

Autonomous lumbar spine pedicle screw planning using machine learning: A validation study

Journal of Craniovertebral Junction and Spine, 2021
Introduction: Several techniques for pedicle screw placement have been described including freehand techniques, fluoroscopy assisted, computed tomography (CT) guidance, and robotics. Image-guided surgery offers the potential to combine the benefits of CT
Kris B Siemionow, Craig W Forsthoefel, Michael P Foy, Dominik Gawel, Christian J Luciano   +4 more
doaj   +1 more source

Intraoperative 3D imaging with cone-beam computed tomography leads to revision of pedicle screws in dorsal instrumentation: a retrospective analysis

Journal of Orthopaedic Surgery and Research, 2021
Background Correct positioning of pedicle screws can be challenging. Intraoperative imaging may be helpful. The purpose of this study was to evaluate the use of intraoperative 3D imaging with a cone-beam CT.
Felix Zimmermann, Katharina Kohl, Maxim Privalov, Jochen Franke, Sven Y. Vetter   +4 more
doaj   +1 more source

Minimally Invasive Subaxial Cervical Pedicle Screw Placement with Routine Fluoroscopy: Cadaveric Feasibility Study and Report of 6 Clinical Cases [PDF]

Journal of Minimally Invasive Spine Surgery and Technique, 2022
Objective Conventional cervical pedicle screw insertion necessitates extensive paraspinal muscle dissection and retraction in order to achieve the lateral to medial angulation needed to achieve the optimal screw trajectory.
Umesh Srikantha, Parichay J Perikal, Akshay Hari, Yadhu K Lokanath, Nirmala Subramaniam, Aniruddha T Jagannatha, Ravi G Varma   +6 more
doaj   +1 more source

Pullout strength of reinserted pedicle screws using the previous entry point and trajectory

Journal of Orthopaedic Surgery and Research, 2019
Purpose This study compared the biomechanics of reinserted pedicle screws using the previous entry point and trajectory with those of correctly inserted pedicle screws.
Xuanwu Huang, Zixiang Huang, Liwei Xu, Dongzhu Liang, Meichao Zhang, Hui Zhang   +5 more
doaj   +1 more source