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jeffhurtmd
11-02-2009, 10:19 AM
Has anyone heard of the L5 Nerve Sign or Chapman's Sign?

A patient saw this on radiology website:

"The L5 nerve sign is shown to be easily and quickly evaluated on conventional MRI that includes axial images through S1. Our findings indicated that there is a strong correlation with L5 nerve root T2 hyperintensity, enlargement, and fascicular distortion to symptomatology. We believe that this sign is the result of chronic, severe, or repetitive L5 impingement. The presence of the L5 nerve root sign implies permanent intrinsic pathology and may predict symptoms that will be resistant to treatment."

My radiologist was not aware of this. Seems to suggest that MRI can detect permanent nerve damage to the L5 nerve. Does anyone know more about this?