Results 111 to 120 of about 119,023 (237)

Biomechanical effects of lateral pedicle wall violation and subsequent screw redirection on pedicle screw anchorage

Purpose To investigate the biomechanical effects of lateral pedicle wall violation (LPWV) and subsequent screw redirection on pedicle screw anchorage under cyclic loading ...
Rene Schmid, Werner Schmoelz, Peter W Ferlic, Richard Bostelmann, Anna Spicher, Richard A. Lindtner, Romed Hörmann, Tim Egelseer   +7 more
core   +1 more source

Effect Of Screw Position On Load Transfer In Lumbar Pedicle Screws: A Non-Idealized Finite Element Analysis

, 2017
Angled screw insertion has been advocated to enhance fixation strength during posterior spine fixation. Stresses on a pedicle screw and surrounding vertebral bone with different screw angles were studied by finite element analysis during simulated ...
Crawford, Neil R., Newcomb, Anna G.U.S., Baek, Seungwon, Kelly, Brian P.   +3 more
core   +1 more source

Pedicle screw fracture at the insertion point in the UHMWPE test block.

, 2019
Pedicle screw fracture at the insertion point in the UHMWPE test block.
Yo-Lun Chu (7645553), Chia-Hsien Chen (316805), Yueh Wu (6294158), Chang-Jung Chiang (89000), Fon-Yih Tsuang (316803), Yi-Jie Kuo (316801)   +5 more
core   +1 more source

Difference between the actual pedicle screw movement position and preoperative planning path.

, 2019
Difference between the actual pedicle screw movement position and preoperative planning path.
Xiu-Yun Xiao (7274342), Chih-Wei Chen (403470), Hao-Kai Chou (7274345), Po-Quang Chen (3124), Feng-Huei Lin (541193), Hsuan-Yu Chen (19228), Chen-Yu Sung (7274348), Tze-Hong Wong (7274351)   +7 more
core   +1 more source

Finite element analysis of the pedicle screw in lumbar transpedicular dynamic stabilization that penetrates the lateral cortex of the vertebral pedicle

BMC Musculoskeletal Disorders
Background The mechanical stability of lumbar transpedicular dynamic stabilization (LTDS) was determined by simulating the degree to which the pedicle screws penetrated the lateral pedicle cortex.
Chen Zhao, Meichao Zhang, Pei Li, Lei Luo, Qiang Zhou, Liehua Liu   +5 more
doaj   +1 more source

Three‐Dimensional Printing Technology Based on Digital Orthopedics: 5‐Point Positioning Point‐Contact Pedicle Navigation Template in the Case of Scoliosis and Complex Pedicle

Orthopaedic Surgery
Objective Imperfect fitting of the navigation template leads to prolonged surgery time and increased blood loss. These problems have not been effectively addressed in previous research.
Qiling Chen, Chunshan Luo, Tingsheng Lu, Shudan Yao, Xingwei Pu, Minglu Yang, Lu Chen, Lihang Wang   +7 more
doaj   +1 more source

Clinical characteristics of the 64 patients who underwent robot-guided pedicle screw placement.

, 2016
Clinical characteristics of the 64 patients who underwent robot-guided pedicle screw placement.
Chieh-Hsin Wu (2602279), Chih-Lung Lin (297428), Keng-Liang Kuo (2602288), Cheng-Yu Tsai (586735), Tai-Hsin Tsai (2602285), Yu-Feng Su (772060), Chih-Hui Chang (2602282)   +6 more
core   +1 more source

Pedicle screw placement accuarcy using a new intraoperative cone-beam computed tomography imaging technique: retrospective analysis of 586 pedicle scerws.

, 2016
Pedicle screws are used for the treatment of various pathologies. Ideally placed screw is fully contained within the pedicle with no breach. The gold standard to assess screw placement is postoperative CT scan.
Irda , Nadia, IREC PhD Day 2016, Banse, Xavier, Cartiaux, Olivier, Kaminski, Ludovic, Cordemans, Virginie, Francq, Bernard   +6 more
core  

Pedicle Screw Placement Accuracy

, 2007
STUDY DESIGN: A meta-analysis of the published literature was conducted specifically looking at accuracy and the postoperative methods used for the assessment of pedicle screw placement in the human spine.
Victor Kosmopoulos, Constantin Schizas, Kosmopoulos, V., Schizas, C.   +3 more
core   +1 more source

Automated measurement of lumbar pedicle screw parameters using deep learning algorithm on preoperative CT scans

Journal of Bone Oncology
Purpose: This study aims to devise and assess an automated measurement framework for lumbar pedicle screw parameters leveraging preoperative computed tomography (CT) scans and a deep learning algorithm.
Qian Zhang, Fanfan Zhao, Yu Zhang, Man Huang, Xiangyang Gong, Xuefei Deng   +5 more
doaj   +1 more source