Results 61 to 70 of about 57,299 (228)

Comparative Analysis of Three Vertebral Screw Placement Directions in Anterior Thoracolumbar Fracture Surgery: A Finite Element Study

Orthopaedic Surgery, Volume 17, Issue 5, Page 1464-1477, May 2025.
This study compares the biomechanical effects of three anterior fixation systems in thoracolumbar surgery—HXTL, NHXTL, and Medtronic's CD Horizon ANTERIOR. Finite element analysis evaluates stress and displacement across vertebral bodies and support structures under varying load conditions. Results indicate the HXTL system minimizes nail–rod stress yet
Xuehai Jia, Yanjun Xie, Yi Yang, Yi Deng, Kerui Zhang, Changyong Shen, Ya Li, Litai Ma   +7 more
wiley   +1 more source

Factors and Experiences Associated With Unscheduled Hospital Readmission After Lateral Lumbar Interbody Fusion: A Case–Controlled Study

Orthopaedic Surgery, Volume 17, Issue 5, Page 1389-1396, May 2025.
The research utilized a case–control approach to contrast patients experiencing unscheduled readmissions with those undergoing planned readmissions due to staged surgery. Findings indicated a 3.88% rate of unscheduled readmissions, mainly linked to adjacent segment disease, with 3.35% necessitating reoperation.
Wangmi Liu, Feng Zhang, Yiqing Tao, Hao Li, Qixin Chen, Fangcai Li   +5 more
wiley   +1 more source

Establishing a Staging System for Adjacent Segment Disease and Exploring Its Significance in Guiding Surgical Decisions: A Retrospective Study

Orthopaedic Surgery, Volume 17, Issue 5, Page 1418-1432, May 2025.
Developed a staging system for adjacent segment disease based on degeneration characteristics. Verified the feasibility and reliability of stage‐guided surgical decision‐making through surgical data, radiological data, and follow‐up data. This staging system was closely correlated with intervertebral disc degeneration and disc height while also ...
Changpeng Qu, Jianwei Guo, Hao Tao, Chuanli Zhou, Kai Zhu, Yihao Sun, Lei Li, Zhiming Liu, Hao Zhang, Xuexiao Ma   +9 more
wiley   +1 more source

Possible Usage of Cannulated Pedicle Screws without Cement Augmentation [PDF]

, 2014
Background: The use of pedicle screws is becoming increasingly popular for spinal surgery practice as the technology advances. Screw pullout due to bone quality and loading conditions is one of the most common problems observed after pedicle screw ...
Teyfik Demir, Demir, Teyfik
core   +1 more source

The Role of Pedicle Screw Surface on Insertion Torque and Pullout Strength [PDF]

Revista Brasileira de Ortopedia
Objective Compare by mechanical tests the pullout resistance and the insertion torque of rough and smooth pedicle screws. Methods Pedicle screws with rough surface and smooth surface, with diameters of 4.8; 5.5 and 6.5 mm, were inserted in polyurethane ...
Rodrigo Barra Caiado Fleury, Antônio Carlos Shimano, Thiago Dantas Matos, Kelsen de Oliveira Teixeira, Valéria Romero, Helton Luiz Aparecido Defino   +5 more
doaj   +4 more sources

Mini‐Open Versus Open Transforaminal Lumbar Interbody Fusion in Patients Aged ≥ 75 Years: Perioperative Surgical Burden and Clinical Outcomes

Orthopaedic Surgery, EarlyView.
In 172 patients aged ≥ 75 years undergoing TLIF, mini‐open TLIF (MO‐TLIF) reduced perioperative burden (shorter operative time, less blood loss, lower POD3 CK) and enabled faster early pain/function recovery versus open TLIF, while 3–6 month PROMs and 12‐month fusion and satisfaction were comparable.
Zhendong Huang, Kelv Shen, Fengxian Jiang, Fengyu Ma, Xiang Wang, Hui Wang, Zhengfeng Lu   +6 more
wiley   +1 more source

Stability of Pedicle Screws After Kyphoplasty Augmentation

, 2006
Objective: The goal of this cadaver study was to compare the stability of pedicle screws after implantation in soft or cured kyphoplasty cement. Methods: Pedicle screws were inserted in a total of 30 thoracolumbar vertebrae of 10 different human ...
Lüring, Christian, Plitz, Wolfgang, Grifka, Joachim, Joachim Grifka, Oliver Linhardt, Corinna Hamberger, Jan Matussek, Linhardt, Oliver, Wolfgang Plitz, Christian Lüring, Hamberger, Corinna, Matussek, Jan   +11 more
core   +1 more source

Is the postoperative pedicle screw position after dorsal instrumentation with or without intraoperative cone beam CT imaging worse in patients with obesity than in normal-weight patients?

Journal of Orthopaedic Surgery and Research, 2022
Background Intraoperative cone beam CT (CBCT) imaging in dorsal instrumentation facilitates pedicle screw positioning. However, in patients with obesity, the benefit may be reduced due to artifacts that affect image quality. The purpose of this study was
Felix Zimmermann, Katharina Kohl, Eric Mandelka, Paul A. Grützner, Jochen Franke, Sven Y. Vetter   +5 more
doaj   +1 more source

Headless Compression Screw Fixation Alone for Lunate Coronal Fractures in Kienböck Disease

Orthopaedic Surgery, EarlyView.
The optimal management of Kienböck disease with lunate coronal fractures remains controversial. Previous studies advocated excision of the fractured lunate followed by scaphotrapeziotrapezoidal (STT) fusion or proximal row carpectomy. In this study, headless compression screw alone achieved fracture healing and satisfactory clinical outcomes in ...
Jiangchao Zhang, Binzhi Zhao, Deshui Yu, Liping Xu, Ge Xiong   +4 more
wiley   +1 more source

A new concept for implant fixation: bone-to-bone biologic fixation [PDF]

European Cells & Materials, 2015
Many attempts have been made to reduce complications of bone implant, such as pedicle screw loosening. To address this problem, the authors suggest a new concept of bone-to-bone biologic fixation using recombinant human bone morphogenetic protein-2 ...
D-Y Kim, J-R Kim, KY Jang, K-B Lee
doaj