Results 81 to 90 of about 128,782 (181)

Pedicle Screw Nut Loosening: Potentially Avoidable Causes of Spine Instrumentation Failure [PDF]

Asian Spine Journal, 2014
Dear Sir, Since the first successful fusion procedures in 1911 for the Pott disease, spinal surgical fixation devices have enhanced tremendous advancements in spinal surgeries with strong evidences showing that instrumented fusion produced a higher rate of fusion [1,2,3].
openaire   +3 more sources

Anterior Cruciate Ligament Reconstruction and Medial Collateral Ligament Augmentation With Pedicled Gracilis Tendon to Address Anteromedial Rotatory and Valgus Instability

Arthroscopy Techniques, Volume 15, Issue 8, August 2026.
Abstract Combined anterior cruciate ligament (ACL) and medial collateral ligament (MCL) injuries with persistent grade II valgus (Fetto/Marshall classification) or anteromedial rotatory instability pose a significant risk to ACL graft integrity if treated in isolation.
Lukas Willinger, Julian Mehl, Sebastian Siebenlist, Armin Runer   +3 more
wiley   +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

Endoscopic‐Assisted Posterior Atlantoaxial Fusion: Technical Innovation and Clinical Experience

Orthopaedic Surgery, Volume 18, Issue 8, Page 1768-1782, August 2026.
Endoscopic‐assisted posterior atlantoaxial lateral mass fusion is introduced as a novel minimally invasive technique for treating atlantoaxial instability. The approach enables direct visualization, precise fixation, and effective bone fusion while minimizing muscle dissection, blood loss, and postoperative pain, achieving rapid neurological and ...
Jichong Zhu, Chengqian Huang, Jiang Xue, Jiarui Chen, Yufan Xu, Dequan Liu, Xinli Zhan, Chong Liu   +7 more
wiley   +1 more source

Biomechanical effects of screw loosening after lumbar PEEK rod and titanium rod fixation: a finite element analysis

Frontiers in Bioengineering and Biotechnology
ObjectiveScrew loosening is a common complication following lumbar spine fixation surgery, yet the biomechanical outcomes after screw loosening remain rarely reported.
Guozheng Jiang, Shuyang Wang, Luchun Xu, Zeyu Li, Ningning Feng, Ziye Qiu, Yongdong Yang, Xing Yu   +7 more
doaj   +1 more source

Clinical and Radiological Outcomes of Monosegmental Minimally Invasive Transforaminal Lumbar Interbody Fusion for High‐Grade Spondylolisthesis: A 3‐Year Observational Study

Orthopaedic Surgery, Volume 18, Issue 8, Page 1591-1600, August 2026.
In this study, we performed two approaches of MIS‐TLIF and percutaneous pedicle screw fixation to offer safe and effective treatment of high‐grade spondylolisthesis with satisfactory clinical and radiological outcomes. ABSTRACT Objective High‐grade isthmic spondylolisthesis remains surgically controversial, and evidence on minimally invasive, single ...
Chao Liu, Ya Wang, Changqing Li, Piming Nie   +3 more
wiley   +1 more source

Low‐Profile Posterior Lumbar Fusion Combined With Proximal Interlaminar Coflex Dynamic Fixation for Lumbar Degenerative Diseases: A Comparative Study

Orthopaedic Surgery, Volume 18, Issue 8, Page 1753-1767, August 2026.
Low‐profile topping‐off surgery, combining cortical bone trajectory screws with pedicle screws and Coflex stabilization, achieved comparable clinical outcomes to traditional topping‐off, with reduced incision length, blood loss, and drainage. This technique offers a less invasive approach and faster recovery for patients with lumbar degenerative ...
Kuan Li, Honghao Yang, Shixuan Guo, Mingzheng Zhao, Dongchenlei Wang, Jun Miao, Yangpu Zhang, Jing Su, Yaoshen Zhang, Yong Hai, Yuzeng Liu   +10 more
wiley   +1 more source

Pedicle screw loosening in dynamic stabilization: incidence, risk, and outcome in 126 patients

Neurosurgical Focus, 2011
Object The long-term outcome of lumbar dynamic stabilization is uncertain. This study aimed to investigate the incidence, risk factors, and outcomes associated with screw loosening in a dynamic stabilization system. Methods The authors
Jau-Ching, Wu, Wen-Cheng, Huang, Hsiao-Wen, Tsai, Chin-Chu, Ko, Ching-Lan, Wu, Tsung-Hsi, Tu, Henrich, Cheng   +6 more
openaire   +2 more sources

Medial Patellofemoral Ligament Reconstruction Using Double Limbed Rectus Femoris Autograft

Arthroscopy Techniques, Volume 15, Issue 7, July 2026.
Abstract Medial patellofemoral ligament reconstruction is routinely performed when conservative treatment fails and patients present with recurrent patellar dislocations. Most described techniques require fixation or some type of bony procedure on the patella.
Vinicios Barreto Melo, Saulo Santos Blunk, Sérgio Marinho de Gusmão Canuto, Lorran Coque Fonseca, Camilo Partezani Helito, Victor Bezerra de Menezes Monnerat, Pedro Baches Jorge   +6 more
wiley   +1 more source

Biomechanical Effects of Two Types of 3D‐Printed Prosthesis Reconstruction After Single‐Segmental Total En Bloc Spondylectomy: A Finite Element Analysis

Orthopaedic Surgery, Volume 18, Issue 7, Page 1437-1447, July 2026.
The choice of prosthesis in spinal reconstruction plays an essential role in patients' postoperative outcomes. This study aims to investigate the biomechanical effects of two types of 3D‐printed prosthesis and titanium mesh cage (TMC) after total en bloc spondylectomy.
Jiasheng Chen, Ben Wang, Yang Luo, Xiang Li, Yanchao Tang, Zihe Li, Hua Zhou, Panpan Hu, Xiaoguang Liu, Zhongjun Liu, Feng Wei   +10 more
wiley   +1 more source