Accurately and efficiently measuring the pressure field is of paramount importance in many fluid mechanics applications. The gradient a flow can be determined from balance momentum equation based on particle image velocimetry measurement kinematics, which renders experimental evaluation material acceleration viscous stress terms possible. In this paper, we present novel method reconstructing in...

Objectives: A cartilage degradation product, the Fibronectin-Aggrecan complex (FAC), has been identified in patients with degenerative disc disease (DDD). Alpha-2-macroglobulin (A2M) can prevent the formation of the G3 domain of aggrecan, reducing the fibronectin-aggrecan G3 complex and therefore may be an efficacious treatment. The present study was designed to determine a. The ability of auto...

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Abstract Introduction A polysomnography or home sleep apnea study provides multiple pieces of information to diagnose obstructive (OSA), but the tests are costly with limited access. The aims use an automated AHI model only PPG signals and can be applied a wearable device. Methods We have included patients different OSA severity build algorithm detecting ODI based on scoring criteria varying si...

AIM To assess the correlation of lateral recess stenosis (LRS) of lumbar segments L4/5 and L5/S1 and the Oswestry Disability Index (ODI). METHODS Nine hundred and twenty-seven patients with history of low back pain were included in this uncontrolled study. On magnetic resonance images (MRI) the lateral recesses (LR) at lumbar levels L4/5 and L5/S1 were evaluated and each nerve root was classi...

BACKGROUND The vacuum phenomenon within the intervertebral disc usually represents disc degeneration. There are no reports in the English literature that focus on the effect of an anterior vacuum disc on surgical outcome of same-segment spondylolisthesis. METHODS Patients with degenerative spondylolisthesis (DS) or isthmic spondylolisthesis (IS) who underwent a spinal surgery between January ...

STUDY DESIGN A nation-wide, outpatient-based, cross-sectional survey with the use of questionnaires. PURPOSE To evaluate the pain, disability and satisfaction of patients with osteoporotic vertebral compression fractures (OVCFs). OVERVIEW OF LITERATURE There are no nation-wide data in Korea on the degree of pain, disability and satisfaction with treatment in patients with OVCFs. METHODS W...

PURPOSE The purpose of this study was to analyze the clinical and radiological results of repair of the interarticularis pars defect by a modified Buck's repair technique in patients with symptomatic spondylolysis with grade 1 spondylolisthesis. These patients with painful spondylolisthesis are the most eligible for direct repair of the defect rather than lumbo-sacral fusion in an attempt to sa...

BACKGROUND AND PURPOSE A successful outcome after lumbar discectomy indicates a substantial improvement. To use the cutoffs for minimal clinically important difference (MCID) as success criteria has a large potential bias, simply because it is difficult to classify patients who report that they are "moderately improved". We propose that the criteria for success should be defined by those who re...