نتایج جستجو برای: axial rotation

تعداد نتایج: 117787  

Journal: :international clinical neurosciences journal 0
seifollah gholampour deptartment of bimedical engineering, north tehran branch, islamic azad university, tehran, iran nikoo soleimani m.sc. student of biomechanical engineering, department of biomedical engineering, north tehran branch, islamic azad university, tehran, iran. ali reza zalii shohada tajrish neurosurgical center of excellence, functional neurosurgery research center, shohada tajrish hospital, shahid beheshti university of medical sciences, tehran, iran. fateme zare karizi m.sc. student of biomechanical engineering, department of biomedical engineering, north tehran branch, islamic azad university, tehran, iran. afsoun seddighi shohada tajrish neurosurgical center of excellence, functional neurosurgery research center, shohada tajrish hospital, shahid beheshti university of medical sciences, tehran, iran

background: cervical spine sustains most of thevertebral column injuries, among other injuries, the disc degeneration and damage that lead to replacement of the damaged disc with cage or artificial disc. methods: the c4 to c6 vertebrae of a normal subject and a person with interbody fusion cage were 3d modelled and then analyzed using finite element method. the results of maximum stress and str...

Journal: :international clinical neurosciences journal 0
seifollah gholampour deptartment of bimedical engineering, north tehran branch, islamic azad university, tehran, iran nikoo soleimani department of biomedical engineering, north tehran branch, islamic azad university, tehran, iran fateme zare karizi department of biomedical engineering, north tehran branch, islamic azad university, tehran, iran ali reza zalii functional neurosurgery research center, shohadatajrish hospital, shahidbeheshtiuniversity of medical sciences, tehran, iran nooshin masoudian department of internal medicine, kosar hospital, school of medicine, semnan university of medical sciences, semnan, iran amir saeed seddighi department of biomedical engineering, north tehran branch, islamic azad university, tehran, iran

background: the cervical spine is the most vulnerable part of the vertebral column and the rotational movements are the most dangerous movements which may cause damages to cervical spine. a good treatment option for the cervical disc disease is the replacement of a damaged disc with an artificial disc that has shown satisfactory clinical results. methods: the c4 to c6 vertebrae of a normal subj...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2006
M Vaugoyeau F Viallet R Aurenty C Assaiante S Mesure J Massion

AIMS To investigate the ability of patients with Parkinson's disease to perform a rotation around the longitudinal axis of the body. Three questions were raised. Is body rotation impaired in Parkinson's disease? Is there a level of the kinematic chain from the head to the foot at which the impairment is more severe? Is the deficit related to the general slowness of movement in Parkinson's disea...

Journal: :emergency journal 0
hassan barzegari arash forouzan mohammad ali fahimi behzad zohrevandi mandana ghanavati

introduction: determining the proper angle for inserting central venous catheter (cv line) is of great importance for decreasing the complications and increasing success rate. the present study was designed to determine the proper angle of needle insertion for internal jugular vein catheterization.  methods: in the present case series study, candidate patients for catheterization of the right i...

2014
Atsushi Fukuda Pei‐Jan P. Lin Kosuke Matsubara Tosiaki Miyati

The purpose of this study was to develop and evaluate a simple method to assess gantry rotation overrun in a single axial CT scanning. The exposure time in the axial scanning was measured at selected nominal rotation times (400, 700, and 1000 ms) using a solid-state detector, the RTI's CT dose profiler (CTDP). CTDP was placed at the isocenter and the radiation dose rate signal (profile) was rec...

2017
Satoru Demura Hideki Murakami Satoshi Kato Katsuhito Yoshioka Noritaka Yonezawa Naoki Takahashi Hiroyuki Tsuchiya

Introduction: Currently, excellent three-dimensional correction can be achieved with use of segmental pedicle screw fixation in adolescent idiopathic scoliosis (AIS). In the majority of patients with major thoracic curves, selective thoracic fusion (STF) may be considered to maximize motion segment of the unfused lumbar spine. This study aimed to investigate the extent of spontaneous derotation...

2014
Ok-Kon Moon Soon-Hee Kim Sang-Bin Lee Ho-Jung An Bo-Kyoung Kim Nyeon-Jun Kim Hee-Joon Shin Yoo-Rim Choi Joong-San Wang Si-Eun Park Kyoung-Ok Min

[Purpose] The purpose of this study was to investigate thoracic coupled motions of 20 Korean young individuals. [Methods] Thoracic motion of twenty healthy male college students aged 23.2±3.1 was examined. The coupled motions of the thoracic regions T1-4, T4-8, T8-12 were measured using a three dimensional motion capture system. [Results] Coupled axial rotation in the same direction as lateral ...

Journal: :Spine 2006
Veronique Feipel Patrick Salvia Helene Klein Marcel Rooze

STUDY DESIGN Controlled study, measuring head repositioning error (HRE) using an electrogoniometric device. OBJECTIVE To compare HRE in neutral position, axial rotation and complex postures of patients with whiplash-associated disorders (WAD) to that of control subjects. SUMMARY OF BACKGROUND DATA The presence of kinesthetic alterations in patients with WAD is controversial. METHODS In 26...

2014
Jian-Zhong Fan Xia Liu Guo-Xin Ni

OBJECTIVE To evaluate trunk muscle strength and EMG activation during isokinetic axial rotation at different angular velocities. METHOD Twenty-four healthy young men performed isokinetic axial rotation in right and left directions at 30, 60, and 120 degrees per second angular velocity. Simultaneously, surface EMG was recorded on external oblique (EO), internal oblique (IO), and latissimus dor...

Journal: :Turkish neurosurgery 2012
Shujie Tang

AIM To determine whether transforaminal lumbar interbody fusion aggravate adjacent segmental degeneration more adversely than anterior lumbar interbody fusion. MATERIAL AND METHODS A normal finite element model, an anterior lumbar interbody fusion model and a transforaminal lumbar interbody fusion model of L3-5 were developed. 800 N compressive loading plus 10 Nm moments simulating flexion, e...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید