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lumbar vertebrae fx/dislocation
compression = hyper ext or fall
spinous process = kick or direct impact
low back muscle strain
acute = ext with rotation
chronic = bad posture
paraspinal muscles
myofascial pain syndrome
fascia = clothes
muscle = skin
piriformis and QL
lumbar sprain
forward bend and twist, force
herniated lumbar disk
degeneration in annulus fibrosis intervertebral disks
nucleus pulposus expands to herniated nucleus pulposus
disc L4-L5 most common, second is L5-S1
HNP
herniated nucleus pulposus
spinal stenosis
congenital, change in vertebrae
narrowing of spinal canal for impingement of spinal cord
nerve root compression of sciatic nerve
piriformis issues
intervertebral disc protrusion or irregularities with in foramina
torsion or blow to sciatic nerve
sharp shooting pain on posterior