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Retrolisthesis can be classified as a form of spondylolisthesis, since spondylolisthesis is often defined in the literature as displacement in any direction. [1] [2] Yet, medical dictionaries usually define spondylolisthesis specifically as the forward or anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum).
It can cause low back pain, weakness or paralysis in the lower limbs, loss of sensation, bowel and bladder dysfunction, and loss of reflexes. [39] There may be bilateral sciatica with central disc prolapse and altered gait. [38] Unlike conus medullaris syndrome, symptoms often occur only on one side of the body. [37]
Degenerative anterolisthesis (also called type 3) is a disease of the older adult that develops as a result of facet arthritis and joint remodeling. Joint arthritis, and ligamentum flavum weakness, may result in slippage of a vertebra. Degenerative forms are more likely to occur in women, persons older than fifty, and African Americans. [13]
Some authors favour degeneration of the intervertebral disc as the major cause of spinal disc herniation and cite trauma as a minor cause. [7] Disc degeneration occurs both in degenerative disc disease and aging. [8] With degeneration, the disc components – the nucleus pulposus and annulus fibrosus – become exposed to altered loads ...
Degenerative disc disease (DDD) is a medical condition typically brought on by the aging process in which there are anatomic changes and possibly a loss of function of one or more intervertebral discs of the spine. [1] DDD can take place with or without symptoms, but is typically identified once symptoms arise.
This hypermobility may lead to instability or degenerative osteoarthritis. This pattern can be recognized as the cervical spine is often seen to be at an angle or hinge at this open segment. A classification scheme for KFS was proposed in 1919 by Andre Feil, which accounted for cervical, thoracic, and lumbar spine malformations. [14]
Symptoms suggestive of cord compression are back pain, a dermatome of increased sensation, paralysis of limbs below the level of compression, decreased sensation below the level of compression, urinary and fecal incontinence and/or urinary retention. Lhermitte's sign (intermittent shooting electrical sensation) and hyperreflexia may be present.
However, the cervical spine is comparatively mobile, and some component of this movement is due to flexion and extension of the vertebral column itself. This movement between the atlas and occipital bone is often referred to as the "yes joint", owing to its nature of being able to move the head in an up-and-down fashion.