Results 41 to 50 of about 91,634 (167)

The Effect of Pitch Variation and Diameter Variation on Screw Pullout in 3D Printed Screws

open access: yesFoot & Ankle Orthopaedics, 2018
Category: Basic Sciences/Biologics Introduction/Purpose: There are many screw and thread designs available to the foot and ankle surgeon for bone fixation. Comparing screws between companies is difficult because properties including core diameter, thread
Joshua Veenstra MD   +3 more
doaj   +1 more source

Evaluation of surface changes of stainless steel miniplates and screws following retrieval from maxillofacial trauma and orthognathic surgery patients: A comparative study

open access: yesJournal of Pharmacy and Bioallied Sciences
Background: This study examines the surface changes of stainless steel miniplates and screws after their retrieval from patients who underwent maxillofacial trauma and orthognathic surgery.
Himanshu P Singh   +6 more
doaj   +1 more source

Relationship between use of screws and acetabular cup stability in total hip arthroplasty: a meta-analysis

open access: yesJournal of International Medical Research, 2020
Objective The relationship between the use of screws and acetabular cup stability in total hip arthroplasty (THA) remains controversial. We evaluated cup stability in THA with and without the use of screws.
Chen Fei   +8 more
doaj   +1 more source

Biomechanical efficacy of four different dual screws fixations in treatment of talus neck fracture: a three-dimensional finite element analysis

open access: yesJournal of Orthopaedic Surgery and Research, 2020
Background Current there are different screws fixation methods used for fixation of the talar neck fracture. However, the best method of screws internal fixation is still controversial.
Zhengrui Fan   +11 more
doaj   +1 more source

Optimizing Motion Sequences with Projective Dual Quaternions

open access: yesAppliedMath
This paper builds upon a previous study suggesting an optimization procedure for rotation sequences by introducing a fourth factor in Euler-type decompositions, thus allowing for an additional degree of freedom used both as a variational parameter and a ...
Danail Brezov
doaj   +1 more source

Comparison of the bone response to xenogenic bone screws and metallic screws in canine femur

open access: yesVeterinární 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   +1 more source

Cannulated versus Non-Cannulated Cancellous Screw Fixation for Femoral Neck Fractures: A Synthetic Bone Biomechanical Study

open access: yesJournal of Orthopaedic Surgery, 2015
Purpose. To compare the compressive strength of cannulated versus non-cannulated cancellous screws for undisplaced femoral neck fractures in synthetic bones. Methods.
AW Gardner   +4 more
doaj   +1 more source

Impact of bone density and integrated screw configuration on standalone anterior lumbar interbody construct strength

open access: yesNorth American Spine Society Journal
Background: In anterior lumbar interbody fusion (ALIF), the use of integrated screws is attractive to surgeons because of the ease of implantation and no additional profile.
Ross Dies, BS   +8 more
doaj   +1 more source

Short-segment stabilization techniques for burst fractures of the thoracolumbar junction: a finite element study under lateral flexion

open access: yesUkrainian Neurosurgical Journal
Introduction: Burst fractures of the thoracolumbar junction (TLJ, T10–L2) are common spinal injuries associated with a high risk of neurological complications.
Oleksii S. Nekhlopochyn   +5 more
doaj   +1 more source

Implantes oseointegrados: cuatro años de experiencias

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 1996
The present paper reports four years of experiences in osseointegrated fixtures, Minimatic (R) of titanium alloy and Lifecore grade 3, pure titanium. 150 Minimatic(R)fixtures and 50 Lifecore/Restore(R) were placed in 104 patients, 61 women and 43 men ...
Fabio Becerra-Santos   +2 more
doaj  

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