Results 51 to 60 of about 4,335 (188)
Comparison of the Pullout Strength of Different Pedicle Screw Designs and Augmentation Techniques in an Osteoporotic Bone Model [PDF]
Asian Spine Journal, 2018 Study DesignMechanical study.PurposeTo compare the pullout strength of different screw designs and augmentation techniques in an osteoporotic bone model.Overview of LiteratureAdequate bone screw pullout strength is a common problem among osteoporotic ...
Gorkem Kiyak +3 more
doaj +1 more source
FREE-HAND PLACEMENT OF C7 PEDICLE SCREWS: A CADAVERIC STUDY [PDF]
, 2015 Objective : To evaluate the accuracy of free-hand pedicle screws placement at the seventh cervical vertebra. Methods : The authors have exposed the cervicothoracic junction of 9 adult cadavers (7 male and 2 female) preserved in formalin from the Faculty
Luis Herrera +7 more
core +3 more sources
Case Reports in Orthopedics, 2015 Stabilization of unstable thoracic fractures with transpedicular screws is widely accepted. However, placement of transpedicular screws can cause complications, particularly in the thoracic spine with physiologically small pedicles. Hybrid stabilization,
Marie-Therese Unterweger +2 more
doaj +1 more source
Science Progress, 2021 Although correct selection of pedicle screw dimensions is indispensable to achieving optimum results, manufacturer-specified or intended dimensions may differ from actual dimensions.
Marian Banas +3 more
doaj +1 more source
Investigation of toggling effect on pullout performance of pedicle screws [PDF]
, 2018 Objective of this study is to assess the pullout performance of various pedicle screws in different test materials after toggling tests comparatively.
Mesut Emre Yaman +9 more
core +1 more source
Global Spine JournalStudy Design Cadaveric Biomechanical. Objective To investigate the biomechanical characteristics of a new screw trajectory, which we have deemed the “pedicle inlet” trajectory.
Christopher T. Martin MD +7 more
doaj +1 more source
Accuracy and Safety of Percutaneous Lumbosacral Pedicle Screw Placement Using Dual-Planar Intraoperative Fluoroscopy [PDF]
Asian Spine Journal, 2018 Study DesignRetrospective case series with prospective arm.PurposeTo assess the safety and accuracy of percutaneous lumbosacral pedicle screw placement (PLPSP) in the lumbosacral spine using intraoperative dual-planar fluoroscopy (DPF).Overview of ...
Conor Dunn +6 more
doaj +1 more source
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 +6 more
wiley +1 more source
Increasing Bending Strength and Pullout Strength in Conical Pedicle Screws: Biomechanical Tests and Finite Element Analyses [PDF]
, 2009 Study Design: Comparative in vitro biomechanical study and finite element analysis. Objectives: To investigate the bending strength and pullout strength of conical pedicle screws, as compared with conventional cylindrical screws.
Chao, Ching-Kong; Hsu, Ching-Chi; Wang, Jaw-Lin; Lin, Jinn +1 more
core
Experimental analysis of pedicle screws [PDF]
, 2016 Aim of this study is to examine the mechanical properties of pedicle screws in titanium alloy obtained by the process of additive manufacturing (Electron Beam Melting, EBM) and compare them with those of screws obtained with traditional techniques.
Rosa, Guido La +3 more
core +1 more source