determining
Generally the person/patient has already had an MRI or some recent diagnostic test that would show levels with problems. Before you get an ESI inquire if you're having it done with fluroscopy because if not then you don't want to have it done as it's probably more or less a blind stick. Fluroscopy is a way to guide insertion and direct the needle placement and adminstration of steroidal material accurately to most involved (or what appears to be) level(s). There are a few different types of approaches.. transforaminally worked best for me tho have had a caudal approach as well depending on level administered to.
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