نتایج جستجو برای: intervertebral disc pressure
تعداد نتایج: 452510 فیلتر نتایج به سال:
Cramps in the affected leg are quite common and persistent although sciatic pain may have disappeared completely. A small proportion of patients develop a true recurrent prolapse (prolapse from the same disc) months to years later. This varies in individual statistics, but is probably in the neighbourhood of 4 per cent. to 5 per cent. These recurrent attacks of sciatica, due to a further protru...
Neurology lays many claims to being one of the more precise and scientific branches of medicine but, nevertheless, there have been several neurological conditions almost mediaeval in their conceptions. One of these is a group included under the general heading of the neuritides-namely, sciatic and brachial neuritis and neuralgia. There is now a large body of evidence to show that the humoral, a...
The annulus fibrosus is the primary load-bearing component of the intervertebral disc responsible for proper transfer of loads in the spine. The aim of this study was to determine selected mechanical parameters of multilayer specimens of the annulus fibrosus of the intervertebral disc during uniaxial tensile loading. The anatomical location (anterior/posterior) of the test specimens of the annu...
Degeneration of the intervertebral disk and its treatments are currently intensely investigated topics. Back pain is a condition whose chronic and debilitating nature combined with its prevalence make it a major health issue of substantial socioeconomic importance. Although researchers, and even sometimes clinicians, focus on the degenerated disk as the problem, to most patients, pain is the fa...
STUDY DESIGN Investigation of the effects of the impairment of different nutritional pathways on the intervertebral disc degeneration patterns in terms of spatial distributions of cell density, glycosaminoglycan content, and water content. OBJECTIVE The aim of this study was to test the hypothesis that impairment of different nutritional pathways would result in different degenerative pattern...
Disc degeneration is a multifactorial process that involves hypoxia, inflammation, neoinnervation, accelerated catabolism, and reduction in water and glycosaminoglycan content. Cannabidiol is the main non-psychotropic component of the Cannabis sativa with protective and anti-inflammatory properties. However, possible therapeutic effects of cannabidiol on intervertebral disc degeneration have no...
This study was to evaluate the effect of stress on the intervertebral disc and facet joint after implantation of device for intervertebral assisted motion (DIAM). Nine fresh human lumbar (L1-L5) cadavers were studied. The stress on L3-4, adjacent intervertebral disc and facet joints was measured in four groups. The cadavers in Group 1 were measured without special treatment; the lumbar discecto...
It is well recognized that the intervertebral disc is composed of a nucleus pulposus, an annulus fibrosus, and a cartilage plate and may play a very important role in spinal stability and kinetics. Degeneration by aging of the lumbar intervertebral disc has been implicated as an important causal factor in the development of low back pain. This study has been undertaken to evaluate the ultrastru...
BACKGROUND The negative effect of long-term working load on lumbar is widely known. However, insertion of different resting modes on long-term working load, and its effects on the lumbar spine is rarely studied. The purpose of this study was to investigate the biomechanical responses of lumbar spine with different levels of degenerated intervertebral discs under different working-resting modes....
BACKGROUND Recent evidence suggests that estrogens exert effects in different tissues throughout the body, and that the estrogen receptor beta (ERbeta) may be important for the action of estrogen (17-beta-estradiol) on the skeleton. The cellular localization of ERbeta in the human intervertebral disc, however, has not yet been explored. METHODS Human disc tissue and cultured human disc cells ...
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