Results 1 to 10 of about 1,376,440 (114)

Proposal of a modified tip apex distance for prediction of lag screw cut-out in trochanteric hip fractures [PDF]

open access: yesSICOT-J, 2023
Introduction: Lag screw cut-out is a serious complication of dynamic hip screw fixation of trochanteric hip fractures. The lag screw position has been acknowledged as one of the important factors affecting the lag screw cut-out. We propose a modification
Selim Amr   +7 more
doaj   +2 more sources

Eccentric distance zone analysis system: New regional evaluation of cephalic fixator tip location for predicting cut-out in geriatric intertrochanteric fractures with internal fixation [PDF]

open access: yesFrontiers in Surgery, 2022
ObjectiveThe aim of this study was to investigate an eccentric distance (ED) zone analysis system for regional evaluation of the cephalic fixator tip based on the ED of the cephalic fixator tip referenced to the radius of its own femoral head to predict ...
Yun-fa Yang   +3 more
doaj   +2 more sources

Predictive value of tip-apex distance and calcar-referenced tip-apex distance for cut-out in 398 femoral intertrochanteric fractures treated in a private practice with dynamic intramedullary nailing [PDF]

open access: yesFrontiers in Surgery
IntroductionCut-out, a biomechanical complication, is one of the most common causes of internal fixation failure of trochanteric hip fractures. The tip-apex distance (TAD) and the calcar-referenced tip-apex distance (CalTAD) have been suggested as the ...
Amariel E. Barra, Carlos Barrios
doaj   +2 more sources

Correlation between cephalic screw positioning of Standard Gamma 3 Nail for intertrochanteric fractures and cut-out incidence [PDF]

open access: yesSICOT-J
Introduction: Lateral fractures of proximal femur are the most frequent fractures in elderly people. Internal fixation using medullary nails is the gold standard of treatment (Gamma 3 nail is the most implanted device) due to reduced incidence of ...
Ortolani Alessandro   +8 more
doaj   +2 more sources

Data-Driven Modeling and Response Prediction of Cut-Out Type Piezoelectric Beams [PDF]

open access: yesMicromachines
In addressing the issue of insufficient theoretical model accuracy for Cut-out type piezoelectric beams with limiters under the influence of contact-impact nonlinearity, this study utilizes the backpropagation neural network algorithm to develop a data ...
Mingli Bian, Wenan Jiang, Qinsheng Bi
doaj   +2 more sources

Experiment of a Cut-Out Piezoelectric Beam Energy Harvester Under Wind-Induced Vibration [PDF]

open access: yesMicromachines
To address the low electromechanical conversion efficiency associated with traditional single-degree-of-freedom (SDOF) piezoelectric energy harvesters, this study proposes a two-degree-of-freedom (2-DOF) cut-out piezoelectric beam for wind-induced ...
Xuhong Fan, Chongming Zhao, Wenan Jiang
doaj   +2 more sources

Stress Concentration Studies in Flat Plates with Rectangular Cut-Outs Using Finite Element Method [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2019
Presence of cut-outs of different shapes is inevitable and is many times considered to be a desirable feature for the design of light-weight components.
Dheeraj Gunwant
doaj   +1 more source

A Method of Optimizing Characteristic Impedance Compensation Using Cut-Outs in High-Density PCB Designs

open access: yesSensors, 2022
The modern era of technology contains a myriad of high-speed standards and proprietary serial digital protocols, which evolve alongside the microwave and RF realm.
Vaidotas Barzdenas, Aleksandr Vasjanov
doaj   +1 more source

Fracturas basicervicales tratadas con clavo intramedular con tornillo cefálico único. Serie de casos y revisión bibliográfica

open access: yesRevista de la Asociación Argentina de Ortopedia y Traumatología, 2023
Introducción: Debido a la inestabilidad rotatoria de las fracturas basicervicales, en estudios recientes, se sugiere el uso de una hoja espiral, doble tornillo o tornillos de compresión en lugar del tornillo cefálico único.
Cristina Llarena-Barroso   +2 more
doaj   +1 more source

Damage-Based Assessment of the Risk of Cut-Out in Trochanteric Fractures for Different Proximal Femoral Nail Anti-Rotation (PFNA) Blade Positions

open access: yesApplied Sciences, 2023
Cut-out of the hip blade of fracture fixation implants, defined as the perforation of the femoral head by the blade due to the collapse of the neck-shaft angle into varus, is the most relevant mechanical complication in the treatment of trochanteric ...
Francisco Rebelo de Andrade   +3 more
doaj   +1 more source

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