One of the most powerful papers ever written in our field IMO…

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“We performed MRI examinations on 98 asymptomatic people. The scans were read independently by two neuroradiologists who did not know the clinical status of the subjects. To reduce the possibility of bias in interpreting the studies, abnormal MRI scans from 27 people with back pain were mixed randomly with the scans from the asymptomatic people.”

“On MRI examination of the lumbar spine, many people without back pain have disk bulges or protrusions but not extrusions. Given the high prevalence of these findings and of back pain, the discovery by MRI of bulges or protrusions in people with low back pain may frequently be coincidental.”

Ref.:
N Engl J Med. 1994 Jul 14;331(2):69-73. Magnetic resonance imaging of the lumbar spine in people without back pain. Jensen MC1, Brant-Zawadzki MN, Obuchowski N, Modic MT, Malkasian D, Ross JS.



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