نتایج جستجو برای: docking and plif studies

تعداد نتایج: 16960248  

2015
Shujie Tang

Objectives: To compare the influence of posterior lumbar interbody fusion (PLIF) and transforaminal lumbar interbody fusion (TLIF) on adjacent segment degeneration. Methods: The study was carried out in the Traumatology and Orthopedics Laboratory, Department of Traditional Chinese Medicine, Medical School, Jinan University, Guangzhou, China, between December 2013 and November 2014. A normal, he...

Journal: :Journal of neurosurgery. Spine 2006
Hideki Sudo Itaru Oda Kuniyoshi Abumi Manabu Ito Yoshihisa Kotani Akio Minami

OBJECT The objectives of this study were to compare the biomechanical effects of five lumbar reconstruction models on the adjacent segment and to analyze the effects of three factors: construct stiffness, sagittal alignment, and the number of fused segments. METHODS Nondestructive flexion-extension tests were performed by applying pure moments to 10 calf spinal (L3-S1) specimens. One-segment ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده زبانهای خارجی 1389

previous studies have aimed at testing a hypothesis but the present study is data-first research in which researcher tries to form a theory from data rather than the use of data to test a hypothesis. this study aims at exploring teachers perceptions of the strengths and weaknesses of the current syllabus for college preparatory course. eight experienced teachers were selected to collect data du...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

just as motivation is important in sla research, demotivation constitutes an important factor, too. there are many studies done on demotivation and burnout of teachers. many of these studies have been conducted on one or two aspects of english instruction. consequently, there are few studies which have been done on more than two aspects of english teaching. the aim of this study is to find out ...

Journal: :Asian spine journal 2016
Shugo Kuraishi Jun Takahashi Keijiro Mukaiyama Masayuki Shimizu Shota Ikegami Toshimasa Futatsugi Hiroki Hirabayashi Nobuhide Ogihara Hiroyuki Hashidate Yutaka Tateiwa Hisatoshi Kinoshita Hiroyuki Kato

STUDY DESIGN Multicenter analysis of two groups of patients surgically treated for degenerative L4 unstable spondylolisthesis. PURPOSE To compare the clinical and radiographic outcomes of posterolateral fusion (PLF) and posterior lumbar interbody fusion (PLIF) for degenerative L4 unstable spondylolisthesis. OVERVIEW OF LITERATURE Surgery for lumbar degenerative spondylolisthesis is widely p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1388

this dissertation has six chapter and tree appendices. chapter 1 introduces the thesis proposal including description of problem, key questions, hypothesis, backgrounds and review of literature, research objectives, methodology and theoretical concepts (key terms) taken the literature and facilitate an understanding of national security, national interest and turkish- israeli relations concepts...

1998
J. S. Fox P. M. Danehy A. F. P. Houwing

A theoretical model for instantaneous PLIF measurements of mole fraction in a shock tunnel ow with pressure gradients and large temperature variations is presented. The model determined the optimum excitation frequency which provided PLIF signal intensity proportional to freestream mole fraction. Experimental PLIF images of a two-dimensional slot scramjet injector with and without hydrogen fuel...

2017
Jong Min Choi Man Kyu Choi Sung Bum Kim

Objective As increasing the size of the geriatric population, the number of elderly patients, who need the surgery for painful degenerative spinal stenosis has been increasing. The geriatric population may be relatively high complications, because of age and age-associated medical conditions. However, there is a lack of studies addressing the perioperative complications and outcomes in elderly ...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده مهندسی معماری و شهرسازی 1388

nowadays,tourism industry considered as one of the main sources of income of a country.unfortunately and despite of owning plenty of cultural historical and natural attractions, iran has not reached to a proper position in this field. besides, the historical cities of a country are considered as the income resource and national wealth of it. qazvin with a rich cultural precedent, have suitable ...

2010
Ti-Sheng Chang Jia-Hao Chang Chien-Shiung Wang Hung-Yi Chen Ching-Wei Cheng

BACKGROUND To investigate how unilateral cage-instrumented posterior lumbar interbody fusion (PLIF) affects the three-dimensional flexibility in degenerative disc disease by comparing the biomechanical characteristics of unilateral and bilateral cage-instrumented PLIF. METHODS Twelve motion segments in sheep lumbar spine specimens were tested for flexion, extension, axial rotation, and latera...

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