Cervical spine taper ratios: Normal tolerance limits

Biomechanics of the cervical spine. I: Normal kinematics.

UNLABELLED This review constitutes the first of four reviews that systematically address contemporary knowledge about the mechanical behavior of the cervical vertebrae and the soft-tissues of the cervical spine, under normal conditions and under conditions that result in minor or major injuries. This first review considers the normal kinematics of the cervical spine, which predicates the apprec...

Tolerance limits for a ratio of normal random variables.

The problem of deriving an upper tolerance limit for a ratio of two normally distributed random variables is addressed, when the random variables follow a bivariate normal distribution, or when they are independent normal. The derivation uses the fact that an upper tolerance limit for a random variable can be derived from a lower confidence limit for the cumulative distribution function (cdf) o...

CHRONIC CERVICAL (Neck) STRAIN CHRONIC CERVICAL SPINE PAIN (Postlaminectomy) CERVICAL (Neck) OSTEOARTHRITIS UNILATERAL CERVICAL SPINE

The limits of log-ratios

BACKGROUND DNA microarray assays typically compare two biological samples and present the results of those comparisons gene-by-gene as the logarithm base two of the ratio of the measured expression levels for the two samples. RESULTS Because of the fixed dynamic range of fluorescence and other detection systems, there is a limit to the range of comparisons that can be made using any array tec...

Dysphagia Due to Anterior Cervical Spine Osteophyte: A Case Report

Introduction: Degenerative changes of the cervical spine are more common in elderly, but anterior cervical osteophytes that cause problems in swallowing are rare. The most common cause of this problem is DISH disease (diffuse idiopathic skeletal hyperostosis). Trauma is also suggested as a potential cause in osteophyte formation. Case Report: We report a rare case of anterior cervical osteop...