Results 21 to 30 of about 17,221 (188)

Biomechanical comparison of cervical transfacet pedicle screws versus pedicle screws

Chinese Medical Journal, 2008
Transfacet pedicle screws provide another alternative for standard pedicle screw placement for plate fixation in the lumbar spine. However, few studies looking at transfacet pedicle screw fixation in the cervical spine are available. Therefore, cervical transfacet pedicle screw fixation and standard pedicle screw fixation techniques were ...
Guan-Yi, Liu, Rong-Ming, Xu, Wei-Hu, Ma, Shao-Hua, Sun, Lei, Huang, Jiang-Wei, Ying, Wei-Yu, Jiang   +6 more
openaire   +2 more sources

Pedicle screw placement in patients with variant atlas pedicle [PDF]

Journal of International Medical Research, 2016
Objective To investigate how the anatomy of variant atlas vertebra impacts on the strategy used to place pedicle screws used to treat atlantoaxial instability. Methods The study enrolled patients with cervical instability who had a ...
Zhang, Qiang-Hua, Li, Hai-Dong, Min, Ji-Kang   +2 more
openaire   +2 more sources

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

Biomechanical study of C1 posterior arch crossing screw and C2 lamina screw fixations for atlantoaxial joint instability

Journal of Orthopaedic Surgery and Research, 2020
Background The biomechanics of C1 posterior arch screw and C2 vertebral lamina screw techniques has not been well studied, and the biomechanical performance of the constructs cannot be explained only by cadaver testing.
Chuang Liu, Allieu Kamara, Yunhui Yan
doaj   +1 more source

Evaluation of Surgical Outcome of All-Pedicle-Screw versus Hybrid Fixation in Patients with Adolescent Idiopathic Scoliosis

مجله دانشکده پزشکی اصفهان, 2018
Background: The aim of current study was to compare the effects of all-pedicle-screw versus hybrid fixation techniques in surgical correction of adolescent idiopathic scoliosis.
Mohammadreza Etemadifar, Pouya Rajabzadeh, Hadi Ravanbod   +2 more
doaj   +1 more source

Factors influencing the pedicle screw fixation stability in patients with unstable lumbar and thoracolumbar spine injuries

Инновационная медицина Кубани, 2020
Background. One of the reasons for the lack of standardized approaches to treating lumbar and thoracolumbar spine traumatic injuries is inconclusive information on relative contribution of various factors to pedicle screw fixation stability.Objective. To
A. E. Bokov, S. G. Mlyavykh, I. S. Brattsev, A. V. Dydykin   +3 more
doaj   +1 more source

Arthroscopic Posterior Cruciate Ligament Reconstruction Using a Pedicled Semitendinosus Autograft Through a Trans‐Septal Approach: A Technical Note

Arthroscopy Techniques, EarlyView.
Abstract Isolated posterior cruciate ligament (PCL) ruptures are relatively uncommon among knee ligament injuries. Operative management is recommended for patients with grade III posterior knee joint laxity. The complex anatomy of the PCL, particularly its course and insertion on the femur and the tibia, makes its reconstruction technically challenging.
Ali Alayane, Vincent Marot, Dany Mouarbes, Léon Ortal, Ariane Le Cunf, Regis Pailhe, Etienne Cavaignac   +6 more
wiley   +1 more source

Combined Anterior Cruciate Ligament Reconstruction and Lateral Extra‐articular Tenodesis With Augmented Continuous Iliotibial Band Autograft

Arthroscopy Techniques, EarlyView.
Abstract The purpose of this technical note is to describe a reproducible surgical technique for anterior cruciate ligament reconstruction combined with a lateral tenodesis using a continuous iliotibial band autograft that allows self‐augmentation of graft diameter without the need for additional tendon harvesting.
Gregoire Zerr, David Eichler, Pierre Imbert, Christian Lutz   +3 more
wiley   +1 more source

A novel UHMWPE anchor for improving the pullout resistance of pedicle screws

Frontiers in Bioengineering and Biotechnology
IntroductionThe ability to maintain bone purchase and resist pullout is considered a basic requirement for pedicle screws. However, poor bone density or oversized pilot holes can increase the risk of screw loosening and pullout.
Che-Kuang Lin, Che-Kuang Lin, Fu-Shan Jaw, Tai-Horng Young   +3 more
doaj   +1 more source

Comparison of intraoperative O-arm- and conventional fluoroscopy (C-arm)-assisted insertion of pedicle screws in the treatment of fracture of thoracic vertebrae

Journal of Orthopaedic Surgery, 2017
Purpose: To introduce the intraoperative O-arm-assisted pedicle screw insertion without any navigation system in the treatment of thoracic vertebrae fracture and compare it to conventional fluoroscopy (C-arm)-assisted pedicle screw insertion technique ...
Hao Liu, Yimeng Wang, Bin Pi, Zhonglai Qian, Xiaoyu Zhu, Huilin Yang   +5 more
doaj   +1 more source