Abstract
Degenerative disc disease of lumbar spine is almost universal with
increasing age. Between 70-90 % of individuals will experience back pain
at some point in their lives. The commonest site of pain in the spine
is the #intervertebral disc. Although the central part of the disc has no
nerve supply, the annulus is very sensitive and is often a source of
pain. Disc #prolapse occurs commonly in middle age with a typical history
of an episode of back pain either related to lifting and / or twisting
or which occurs spontaneously. 80% of disc prolapses occur in lumbar
spine, the majority at L5-S1 and at L4-L5. The back pain commonly lasts
for 2-6 weeks but is followed immediately by sciatica or nerve root
pain. The pain follows one or more #dermatomes and is often associated
with neurological symptoms, altered sensation and weakness in the
muscles innervated by the compressed nerve roots. Men are more commonly
affected. Multiple level disc involvement is commoner as compared to
single level disc involvement. L4-L5 and L5-S1 level discs are most
commonly affected due to disc degeneration changes. MRI is the standard
imaging modality for detecting disc #pathology due to its advantage of
lack of radiation, #multiplanar imaging capability and precise
localisation of intervertebral disc changes.
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MRI Evaluation in Lumbar PIVD by Gurmeet Singh Sarla in BJSTR
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