Results 1 to 10 of about 128,782 (181)

Risk Factors for Pedicle Screw Loosening: A Comprehensive Review [PDF]

Journal of Orthopaedic Surgery and Research
Pedicle screw fixation is commonly used in spinal surgery; however, screw loosening is a frequent complication, and adversely affects both surgical outcomes and patient prognosis.
Qinfan Wu, Jiahu Huang, Yun Cao
exaly   +5 more sources

The MRI-Based Vertebral Bone Quality Score Is a Predictor of Pedicle Screw Loosening Following Instrumented Posterior Lumbar Fusion [PDF]

Scientific Reports
Objective: To investigate the predictive ability of the MRI-based vertebral bone quality (VBQ) score for pedicle screw loosening following instrumented transforaminal lumbar interbody fusion (TLIF).
Po-Liang Lai, Yu-Cheng Yeh, Chi-Chien Niu   +2 more
exaly   +4 more sources

Risk Factors for Clinically Relevant Loosening of Percutaneous Pedicle Screws

Spine Surgery and Related Research, 2019
Introduction: (1) To evaluate the influence of pedicle screw loosening on clinical outcomes; (2) to clarify the association between the pull-out length and screw loosening 1 year after surgery; and (3) to determine radiographically which screw parameters
Kensuke Koyama, Tetsuro Ohba, Hirotaka Haro   +2 more
exaly   +7 more sources

Correlation analysis of BMD in different regions of the vertebrae determined by QCT and DXA on pedicle screw loosening [PDF]

Scientific Reports
Low bone mineral density (BMD) impairs the stability of the bone-screw interface, which leads to screw loosening after spinal instrumentation. Quantitative computed tomography (QCT) and dual-energy X-ray absorptiometry (DXA) were applied to measure BMD ...
Chen Xu, Jiachen Ji, Yuting Zhang, Xiaoqiang Huang, Liang Dong   +4 more
doaj   +3 more sources

Novel MRI-Based Pedicle Bone Quality Score Independently Predicts Pedicle Screw Loosening After Degenerative Lumbar Fusion Surgery [PDF]

Orthopaedic Surgery
Summary Pedicle screw loosening after posterior lumbar fusion is associated with poor bone quality, which often determines screw pull‐out strength, insertion torque, and vertebral body loading characteristics.
Yueming Song, Qiujiang Li
exaly   +3 more sources

Pedicle screw loosening: the value of radiological imagings and the identification of risk factors assessed by extraction torque during screw removal surgery [PDF]

Journal of Orthopaedic Surgery and Research, 2019
Background context Pedicle screw loosening is a common complication after spine surgeries. Traditionally, it was assessed by radiological approaches, both X-ray and CT (computed tomography) scan, while reports using mechanical method to study screw ...
Xiaoliang Wu, Jiawei Shi, Jinyan Wu, Yongquan Cheng, Kaiwen Peng, Jianting Chen, Hui Jiang   +6 more
doaj   +3 more sources

Longitudinal Study on Pre- and Post-Operation CT Imaging for Predicting Pedicle Screw Loosening in Patients with Lumbar Degenerative Disease [PDF]

Therapeutics and Clinical Risk Management
Qian Zhang,1– 3,* Fanfan Zhao,2,* Yu Zhang,3 Xiangyang Gong1,2 1Medical College of Soochow University, Suzhou, People’s Republic of China; 2Department of Radiology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital), Hangzhou ...
Zhang Q, Zhao F, Zhang Y, Gong X
doaj   +3 more sources

Distinct regional bone quality patterns in L5–S1 isthmic and degenerative spondylolisthesis: implications for pedicle screw loosening risk [PDF]

Journal of Orthopaedic Surgery and Research
Background Screw loosening remains a major concern after pedicle screw fixation for lumbar spondylolisthesis. Although dual-energy X-ray absorptiometry (DXA) is widely used to assess systemic bone status, it may not fully capture regional bone quality at
Ranxu Yang, Zimo Wang, Chuanwei Geng, Caoyang Li, Huan Liu, Jia Li   +5 more
doaj   +2 more sources

Predictive Value of the Preoperative Screw Trajectory-to-Vertebral Body Hounsfield Unit Ratio and the Combined Model Incorporating MRI-Based Pedicle Bone Quality Score for Pedicle Screw Loosening After Pedicle Screw Fixation [PDF]

Global Spine Journal
Study Design Retrospective cohort study. Objectives This study introduced the screw trajectory-to-vertebral body Hounsfield unit (HU) ratio as a novel parameter, evaluated its predictive value with the pedicle bone quality (PBQ) score for postoperative ...
Jinhua Yang MSc, Xincan Wu MSc, Qiancheng Sun MSc, Yunxin Su MSc, Yuanzhen Zhang PhD, Guoyong Yin PhD, Jian Chen PhD   +6 more
doaj   +2 more sources

Single-Side Iatrogenic Pedicle Injury May Trigger an Increased Risk of Contralateral Screw Loosening: An in Silico Study

JOR Spine
Background Screw loosening is a frequently reported complication following pedicle screw fixation, resulting in various adverse outcomes. The primary trigger for screw loosening is biomechanical deterioration.
Guoyou Wang, Jiexiang Yang, Lijunpeng Jia   +2 more
exaly   +2 more sources