Spasm in lower back whilst rollng a heavy patient extreme pain since?

Back sprain?: If pain is radiating down one leg or buttock we consider disc disease seriously---much more common is pain from the facets, ligaments, muscles, etc ---depend on duration and severity--- first try muscle relaxant, anti-inflamatory, physical therapy, heat, tens unit---if no relief in weeks--need exam, then probably MRI to look at disc, facets, bony surs, etc.