The Benefits of Posterior Joint Infiltration in Chronic Low Back Pain

the subjects will receive their injection in the ultrasound room. a glucocorticoid injection is given at the time of consultation, using anatomical ultrasound scan to guide needle placement

"the subjects will receive their injection in the ultrasound room.~a glucocorticoid injection is given at the time of consultation, using anatomical landmarks to guide needle placement.~The investigator simulate an ultrasound scan with a film shown on the screen."