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
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
S.Y. Heo, N.S. Kim
doaj +3 more sources
Analysis of Locking Self-Taping Bone Screws for Angularly Stable Plates. [PDF]
J Med Biol Eng, 2017 Paper focuses on biomechanics, specifically on locking cortical bone screws in angularly stable plates used for the treatment of bone fractures in the medical fields of traumatology and orthopaedics. During extraction of titanium-alloy implants, problems
Čada R +4 more
europepmc +2 more sources
Fatigue failure of cortical bone screws [PDF]
Journal of Biomechanics, 1983 An experimental study of the fatigue life of cortical bone screws under conditions which stimulated in vivo usage was performed. The two most important factors influencing fatigue life were axial screw tension (the force normal of the plate to bone) and the cyclic shearing load.
Martin S. Zand +2 more
openalex +5 more sources
Failure rates for stainless steel versus titanium alloy infrazygomatic crest bone screws: A single-center, randomized double-blind clinical trial. [PDF]
Angle Orthod, 2019 OBJECTIVES: To compare failure rates for stainless steel (SS) and titanium alloy (TiA) bone screws (BSs) placed in the infrazygomatic crest (IZC). MATERIALS AND METHODS: A total of 386 consecutive patients (76 male, 310 female; mean age 24.3 years ...
Chang CH, Lin JS, Roberts WE.
europepmc +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
Developments in Modelling Bone Screwing [PDF]
Current Directions in Biomedical Engineering, 2020 Abstract INTRODUCTION: A torque-rotation model of the bone-screwing process has been proposed. Identification of model parameters using recorded data could potentially be used to determine the material properties of bone. These properties can then be used to recommend tightening torques to avoid over or under-tightening of bone screws ...
Wilkie, Jack +2 more
openaire +4 more sources
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