Dorsal open reduction with pedicle screw rod internal fixation for lower cervical spine dislocation: A retrospective analysis of 12 cases

2016 ◽  
Vol 62 (5) ◽  
pp. 245-250 ◽  
Author(s):  
L. Zhang ◽  
Y. Sun ◽  
C. Jiang ◽  
L. Zuo ◽  
H. Shen ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Internal Fixation ◽  
Retrospective Analysis ◽  
Pedicle Screw ◽  
Open Reduction ◽  
Lower Cervical Spine

scholarly journals Finite Element Analysis and Comparative Study of 4 Kinds of Internal Fixation Systems for Anterior Cervical Discectomy and Fusion in Children

2021 ◽  
Author(s):  
ziyu li ◽  
Jianqiang Zhou ◽  
Zhijun Li ◽  
Shaojie Zhang ◽  
xing wang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cervical Spine ◽  
Finite Element Model ◽  
Internal Fixation ◽  
Element Model ◽  
Lower Cervical Spine ◽  
Element Analysis ◽  
Internal Fixation System ◽  
Fixation System

Abstract Background: Spinal injury in children usually occurs in the cervical spine region. Anterior fixation of lower cervical spine has been applied in the treatment of pediatric cervical spine injury and disease due to its stable and firm mechanical properties. This study performed finite element analysis and comparison of 4 different anterior cervical internal fixation systems for children, and explored more stable methods of anterior cervical internal fixation in children. Methods: A finite element model of 6-year-old children with lower cervical spine C4/5 discectomy was established, and the self-designed lower cervical spine anterior locking internal fixation system ACBLP and the children’s anterior cervical internal fixation system ACOP, ACVLP, ACSLP plate screws were fixed and loaded on the model. 27.42N•m torque load was applied to each internal fixation model under 6 working conditions of anteflexion, backward flexion, left flexion, right flexion, left rotation and right rotation, to simulate the movement of the cervical spine. The activity and stress distribution cloud diagram of each finite element model was obtained. Results: In the four internal fixation models of ACOP, ACVLP, ACSLP, and ACBLP, the mobility of C4/5 segment basically showed a decreasing relationship, and the mobility of adjacent segments increased significantly. In the Mises stress cloud diagram of the cervical spine of the four models, the vertebral body and accessories of the ACBLP model born the least stress, followed by ACSLP; The steel plate and screws in the ACVLP internal fixation model were the most stressed; The stress of the internal fixation system (plate/screw) in all models increased in the order of ACBLP, ACSLP, ACVLP, and ACOP.Conclusions: ACBLP internal fixation system had obvious advantages in anterior internal fixation of lower cervical spine in children, C4/5 had the smallest degree of movement, relative displacement was minimal, the stress on the pedicle was the least while the stress on the plate screw was relatively the smallest.

scholarly journals Pedicle screw fixation in the lower cervical spine: Case series

2018 ◽  
Vol 4 (2l) ◽  
pp. 807-811
Author(s):  
Chaudhary P ◽  
Khanal GP ◽  
Rijal R, Maharjan R ◽  
Paneru S ◽  
Kalawar RPS ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Pedicle Screw ◽  
Screw Fixation ◽  
Case Series ◽  
Pedicle Screw Fixation ◽  
Lower Cervical Spine ◽  
Spine Case

Open reduction and internal fixation of acute intra-articular displaced calcaneal fractures: A retrospective analysis of surgical timing and infection rates

Injury ◽  
2013 ◽  
Vol 44 (7) ◽  
pp. 1007-1010 ◽  
Author(s):  
Cheng-Jung Ho ◽  
Hsuan-Ti Huang ◽  
Chung-Hwan Chen ◽  
Jian-Chih Chen ◽  
Yuh-Min Cheng ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Retrospective Analysis ◽  
Open Reduction ◽  
Infection Rates ◽  
Calcaneal Fractures ◽  
Surgical Timing

A retrospective analysis of comminuted intra-articular fractures of the tibial plafond: Open reduction and internal fixation versus external Ilizarov fixation

Injury ◽  
2008 ◽  
Vol 39 (2) ◽  
pp. 196-202 ◽  
Author(s):  
Stacy Bacon ◽  
Wade R. Smith ◽  
Steven J. Morgan ◽  
Erik Hasenboehler ◽  
Giby Philips ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Retrospective Analysis ◽  
Open Reduction ◽  
Articular Fractures ◽  
Tibial Plafond ◽  
Ilizarov Fixation

scholarly journals Anatomic Study of Individualized and Improved Pedicle Screw Implantation in the Lower Cervical Spine

2015 ◽  
Vol 100 (2) ◽  
pp. 328-333 ◽  
Author(s):  
Yuan Liu ◽  
Bin Zhang ◽  
Min Dai ◽  
Han-chu Xiong ◽  
Song Gao ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Pedicle Screw ◽  
Pedicle Screws ◽  
Pedicle Screw Fixation ◽  
Lower Cervical Spine ◽  
Optimal Position ◽  
Screw Position ◽  
Cervical Pedicle ◽  
Picture Archiving And Communication ◽  
Ct Classification

The objective of this study was to explore a safe, reliable, and effective method for pedicle screw implantation in the lower cervical spine. Recently, a number of studies have shown that cervical pedicle screw fixation is better than roadside steel plate after cervical screw internal fixation within the scope of its indications. However, the difficulty of the former surgery technology is relatively higher and it is much easier to cause many complications. Therefore, domestic and foreign scholars have been positively exploring safer, easier operations and cheaper methods of pedicle screw implantation in the lower cervical spine. The lower cervical spine areas (C3–C7) of 7 adult cadavers were carried out with computed tomography (CT) scans of 1-mm slices. The entry point, angle, and length of the screws were determined by the measurement of CT images in a picture archiving and communication system. The pedicle screws were implanted with the technique of improved Abumi pedicle screw placement in the lab. The accuracy of the screws was evaluated by the Andrew CT classification criteria of pedicle screw position and gross observation after the experiment. A total of 66 screws were implanted in the lower cervical spine, and 90.9% of the screws inserted were found to be in an optimal position. The method of individualized and improved pedicle screw implantation in the lower cervical spine is relatively safe and reliable, which can be considered to be used in the clinic.

scholarly journals A free-hand technique for pedicle screw placement in the lower cervical spine

2009 ◽  
Vol 1 (2) ◽  
pp. 107-112 ◽  
Author(s):  
Rong-ming Xu ◽  
Wei-hu Ma ◽  
Qing Wang ◽  
Liu-jun Zhao ◽  
Yong Hu ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Pedicle Screw ◽  
Screw Placement ◽  
Lower Cervical Spine ◽  
Pedicle Screw Placement ◽  
Free Hand Technique
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