Has anyone tried doing an ESI primarily for radicular weakness? I have a 50 y/o F with a 3 month h/o L L5 radicular symptoms. Her back pain has nearly resolved and no radiating pains now. Her only complaint is ankle weakness. She has 4/5 strength of left ankle DF, invertors, evertors, and EHL. EMG consistent with a subacute L L5 radic (1+ fibs in TA and TP). MRI shows diffuse disc bulge at L4/5 and a small, central HNP at L5/1. No mechanical impingement. Presentation seems out of proportion to MRI findings, but pain is not an issue. Would anyone try a TFESI in addition to PT? Any studies on ESI for weakness?