The spine undergoes an accordion-like cycle of compression and decompression. This variation occurs not exclusively with the sleep-wake cycle but with the gravity. Researchers have long known that the spine undergoes a diurnal variation with compression changes of water exchange in and out of the intervertebral discs. Much of the attention has been on the discs of […]
Connecting with patients is the future of healthcare. With low back pain and neck pain as the leading cause of disability and lost work days on this planet, getting to the roots of helping people with these conditions is imperative. These origins are mostly biomechanical in nature. But how a practitioner connects the curious patient […]
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Lumbar disc herniation is a very common condition which often generates pain and disability. It is a physiological process that starts from the inside out as the nucleus pushes radially into the annulus fibrosus. But not all disc herniations cause pain and many of them don’t cause long term disability. The literature has been quite […]
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Aging and Degenerative Disc Changes of the IVD’s Impact on Spinal Flexibility A publication reviewed several studies involving the biomechanics of the intervertebral discs (IVD) with macroscopic changes associated with degenerative disc disease with the aim of finding out how spinal flexibility was affected by dehydration, tears, fissures, osteophytes, and the inevitable collapse of the […]
A research study of GABAergic communication within rodent peripheral sensory ganglia demonstrated that somatosensory pain signals can be transmitted from the peripheral sensory nerves to the central nervous system (CNS). The study further found that necessary proteins required in GABA synthesis were released by sensory neurons and triggered by depolarization. By infusing the sensory ganglia […]
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Numerous studies have examined disc volume, height, and fluid flow to more clearly understand the effects and rate of cellular diffusion and nutrient and waste transfer on IVD. However, to date, there have been no significant measurements of the rate at which discs lose fluids during normal activity throughout the day. We know that IVD […]
The post In Vivo MRI Study Examines the Rate of Disc Fluid Loss Over an 8 Hour Day appeared first on Dynamic Disc Designs.
A review 1 of how biochemical and micromechanical events affect the cellular biology and morphology of intravertebral discs (IVD) during physical motion, loading, and compression determined that important interactions between the nucleus pulposus and annular fibrosis altered cells, micromechanical, mechanobiological, and mechanical features. Because previous studies have indicated a strong genetic link in the propensity […]
The post Research into IVD Cell Mechanobiology and the Role of Genetics in IVD Degeneration Necessary appeared first on Dynamic Disc Designs.
Study Finds Prolapse Injury Influenced by Flexion Degree and Level of Hydration, not Rate of Loading
A study 1 of isolated and adapted bovine spinal segments examined the extent to which flexion, hydration, and loading rates were responsible for the breakdown of the nucleus pulpous structure and found that the rate of loading had little effect on disc damage with full annular division. Instead, the degree of flexion and the hydration […]
A 2015 study of 36 chronic pain patients sought to explore the causes of pain-related fear in the hopes of contributing to research that might help practitioners develop avoidance models in the future. The study found that the most common cause of pain-related fear is its inexplicability and unpredictability—because patients could not make any reasonable […]
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When it comes to pain medication, what you know might hurt you. Research on the nocebo effect 1 suggests that patients who are educated about the potential risks or non-efficacy of the pain drugs they take are at higher risk for developing negative symptoms and less satisfied with the outcome after taking the drug. The […]
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Here are a series of labeled Professional LxH model pictures to help in the greater understanding of anatomical pain generators (and relievers) when exploring symptoms as they relate to spinal motion. At Dynamic Disc Designs Corp. we believe that careful evaluation of the quality of motion can help in the diagnosis and treatment of back […]
A 2017 study 1 determined that fast-walking and slow running can strengthen the intervertebral disc. While it was previously assumed that the metabolism in intervertebral discs (IVD) was not responsive enough to make any substantial changes over the course of a human lifetime, the new study demonstrates that moderately-paced walking or running can improve IVD […]
A 2012 review 1 concerning facet joint osteoarthritis (FJ OA) explicates the current understanding of the ailment and concurs with the widely-held view that OA represents a failure of the entire facet joint, rather than only the facet joint cartilage. About Osteoarthritis (OA) Spinal OA occurs in the facet or zygapophyseal joints—paired joints at […]
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Chronic lower back pain (LBP) is a frequently-reported disability worldwide and may contribute to anxiety and depression when it interferes with a person’s overall quality of life. While some LBP resolves within a matter of weeks or months, patients who experience long-term or chronic LBP are more likely to report accompanying psychological distress, including symptoms […]
The post Twin Study Suggests Non-Causal Link Between LBP and Depression appeared first on Dynamic Disc Designs.
Lumbar medial branch radiofrequency neurotomy (RFN), a common treatment for zygapophyseal joint pain, may be therapeutically ineffective and could contribute to disc degeneration, according to a recent study, 1 which considered the therapeutic and/or potentially negative effects of the procedure on the lumbar multifidus muscle cross-sectional area (CSA), including facet joint degeneration, or intervertebral disc […]
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