Abstract:
:Electrodiagnostic findings of fibrillations and positive sharp waves in the lumbosacral paraspinals in patients without previous back surgery has been generally considered to be abnormal, consistent with posterior rami denervation. In some cases, it is the only abnormality on the electromyographic examination. This study was undertaken to determine the prevalence of abnormal spontaneous activity in lumbosacral paraspinals in asymptomatic individuals. Nine (14.5%) of 62 subjects studied had positive sharp waves or fibrillations noted on the needle examination of bilateral lumbosacral paraspinal muscles. There was a significant increase in the prevalence of abnormal activity with increasing age. This suggests that caution should be taken in attributing radiculopathy as the etiology of low back pain when electromyographic lumbosacral paraspinal abnormalities are the only positive findings in the middle-aged or older individual.
journal_name
Muscle Nervejournal_title
Muscle & nerveauthors
Date ES,Mar EY,Bugola MR,Teraoka JKdoi
10.1002/(SICI)1097-4598(199603)19:3<350::AID-MUS11subject
Has Abstractpub_date
1996-03-01 00:00:00pages
350-4issue
3eissn
0148-639Xissn
1097-4598pii
10.1002/(SICI)1097-4598(199603)19:3<350::AID-MUS11journal_volume
19pub_type
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