A facet joint injection usually takes less than 30 minutes.
Your doctor will use antiseptic to clean the area and will inject local anaesthetic into the area, allowing your doctor to give the facet joint injection with much less discomfort for you.
Your doctor will carefully insert the needle for the injection. They may inject dye (colourless contrast fluid) and take an x-ray to help them to check that the needle is in the right position. Sometimes your doctor will use an ultrasound scanner to help guide them while they insert the needle.