نتایج جستجو برای: axial rotation

تعداد نتایج: 117787  

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 1996
L Blankevoort R Huiskes

Ligament function in restraining axial rotation of the tibia relative to the femur cannot be revealed by analysis of ligament forces alone. The action of the articular surfaces should be taken into account as well. In this study, three-dimensional mathematical models of four human knee joints were used to determine the limits of axial rotation between 0 and 90 degrees of flexion, whereby the fo...

Journal: :The Journal of Bone and Joint Surgery. British volume 1989

Journal: :Physical Review Letters 2011

Journal: :SAÜ Fen Bilimleri Enstitüsü Dergisi 2012

2015
Anat Mirelman Hagar Bernad-Elazari Tomer Nobel Avner Thaler Agnese Peruzzi Meir Plotnik Nir Giladi Jeffrey M. Hausdorff Ramesh Balasubramaniam

Healthy walking is characterized by pronounced arm swing and axial rotation. Aging effects on gait speed, stride length and stride time variability have been previously reported, however, less is known about aging effects on arm swing and axial rotation and their relationship to age-associated gait changes during usual walking and during more challenging conditions like dual tasking. Sixty heal...

2012
Melinda K Harman Scott A Banks Stephan Kirschner Jörg Lützner

BACKGROUND Clinical consequences of alignment errors in total knee replacement (TKR) have led to the rigorous evaluation of surgical alignment techniques. Rotational alignment in the transverse plane has proven particularly problematic, with errors due to component malalignment relative to bone anatomic landmarks and an overall mismatch between the femoral and tibial components' relative positi...

2015
Bo Yang

INTRODUCTION: Intervertebral disc experiences large complex deformations including compression, rotation, and bending under daily activity. For example, twisting while carrying a weight, loads the disc under axial compression and axial rotation. Previous work showed that the rate of degeneration and disc injury is higher for in workers that experience repetitive twisting and lifting [1]. Disc d...

2013
Shih-Liang Shih Chien-Lin Liu Li-Ying Huang Chang-Hung Huang Chen-Sheng Chen

BACKGROUND The Dynesys system provides stability for destabilized spines while preserving segmental motion. However, clinical studies have demonstrated that the Dynesys system does not prevent adjacent segment disease. Moreover, biomechanical studies have revealed that the stiffness of the Dynesys system is comparable to rigid fixation. Our previous studies showed that adjusting the cord preten...

In this paper, classical thin shell theory is used to analyze vibration and critical speed of simply supported rotating orthotropic cylindrical shell. The effects of centrifugal and Coriolis forces due to the rotation are considered in the present for‌mulation.. In addition, axial load is applied on cylinder as a ratio of critical buckling load. Finally the effects of orthotropic ratio, materia...

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