Development and Testing of X-Ray Imaging-Enhanced Poly-L-Lactide Bone Screws. [PDF]
PLoS ONE, 2015 Nanosized iron oxide particles exhibit osteogenic and radiopaque properties. Thus, iron oxide (Fe3O4) nanoparticles were incorporated into a biodegradable polymer (poly-L-lactic acid, PLLA) to fabricate a composite bone screw.
Wei-Jen Chang +6 more
doaj +2 more sources
Comparison of the bone response to xenogenic bone screws and metallic screws in canine femur [PDF]
Veterinární medicína, 2014 The study compared the bone response to xenogenic screws and metallic screws of a similar design in a canine femur. The xenogenic bone screws and metallic bone screws were inserted into the femur diaphyses of dogs. Radiological and histological responses to the xenogenic bone screws were determined in canine bone and micro-computed tomography ...
S.Y. Heo, N.S. Kim
openaire +3 more sources
Are continuous locking headless bone screws with locking plate fixation effective for bridging fracture gaps in far cortical locking constructs? An in vitro biomechanical and finite element study under simplified axial loading. [PDF]
Front Bioeng BiotechnolIntroductionLocking screws typically provide more stable fixation than conventional cortical screws. However, the rigid connection between the locking screw head and plate hole can cause stress concentrations and lead to early failure under cyclic ...
Lin CC, Chan YH, Su PF.
europepmc +2 more sources
Fixation stability comparison of bone screws based on thread design: buttress thread, triangle thread, and square thread. [PDF]
BMC Musculoskelet Disord, 2022 Background The influence of thread profile on the fixation stability of bone screws remains unclear. This study aimed to compare the fixation stability of screws with different thread profiles under several loading conditions.
Feng X +6 more
europepmc +2 more sources
Can barb thread design improve the pullout strength of bone screws? [PDF]
Bone Joint Res, 2021 Aims To draw a comparison of the pullout strengths of buttress thread, barb thread, and reverse buttress thread bone screws. Methods Buttress thread, barb thread, and reverse buttress thread bone screws were inserted into synthetic cancellous bone blocks.
Feng X +5 more
europepmc +2 more sources
Mechanical Performance of Metallic Bone Screws Evaluated Using Bone Models. [PDF]
Materials (Basel), 2020 To evaluate mechanical performance properties of various types of cortical bone screw, cancellous bone screw, and locking bolt, we conducted torsional breaking and durability tests, screw driving torque tests into bone models, and screw pullout tests ...
Okazaki Y +3 more
europepmc +2 more sources
‘N-Angle’: Clinical Indicator for Predictable Insertion of Ramal Bone Screws [PDF]
The Journal of Indian Orthodontic Society, 2021 Neeraj E Kolge
exaly +2 more sources
A 3-dimensional finite element analysis to evaluate the impact of force direction, insertion angle, and cortical bone thickness on mini-screw and its surrounding bone [PDF]
Journal of Dental Research, Dental Clinics, Dental Prospects, 2021 Background. The present study aimed to assess the stress and strain distribution on mini-screws and the surrounding bone in cases of different cortical bone thicknesses (CBTs), mini-screw insertion angles, and force directions using finite element ...
Omar Nazal Auwer +2 more
doaj +1 more source
Biomechanical Study of 3 Osteoconductive Materials Applied in Pedicle Augmentation and Revision for Osteoporotic Vertebrae: Allograft Bone Particles, Calcium Phosphate Cement, Demineralized Bone Matrix [PDF]
Neurospine, 2023 Objective This study assessed biomechanical properties of pedicle screws enhanced or revised with 3 materials. We aimed to compare the efficacy of these materials in pedicle augmentation and revision.
Chongyu Jia +7 more
doaj +1 more source
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