AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
L5 s1 disc desiccation2/28/2024 Lumbar spinal stenosis is defined as any type of narrowing of spinal canal, nerve root canal or intervertebral foramina. Herniation occurs when nuclear materials protrude or extrude into the perineural space through radial tears of the annulus. Lumbar disc degenerative disease may present as disc herniation, lumbar spinal stenosis, facet joint arthropathy or their combination. Lumbar degeneration can occur at any level but mainly it occurs on 元-L4 and L4-S1 vertebrae. Signs of degeneration includes one or all of the following: diminished disc height, narrowing of facet, spondylophytes and sclerosis of upper and lower endplates, stenosis of spinal canal, narrowing of lateral recess, real or apparent desiccation, fibrosis, diffuse bulging of the annulus beyond the disc space, extensive fissuring (i.e., numerous annular tears), mucinous degeneration of the annulus, defects and sclerosis of the endplates, and osteophytes at the vertebral apophyses. Due to loading there is a deformation of the endplate which results in reduced intradiscal pressure, loss of height and adding stress to the surrounding annulus and facet joints. The ability of the disc to resist anterior and lateral shears along with compression and flexion makes the intervertebral disc the most important load bearing component of the spine, beside the facets. Intervertebral disc resists compression because of the osmotic properties of the proteoglycans. Intervertebral disc is the largest avascular tissue in the body, and consists of inner nucleus pulposus, outer annulus fibrosus and cartilage located superiorly and inferiorly. Despite the high prevalence of low back pain in both developed and developing nations, it is still enigmatic in terms of cause, diagnosis and treatment. People throughout the world spend more than 100 billion US dollars/year for the treatment of low back pain. It is the single most common cause of disability at age above 45 years and second most common reason for primary care physician visit. In the industrialized part of the world low back pain is extremely common. Lumbar disc degenerative disease is the most common cause of Low back pain throughout the world.
0 Comments
Read More
Leave a Reply. |