Patients in the injection group will be injected 10 mg (0.25 mL) of triamcinolone acetonide, mixed with 0.25 mL of 0.125% bupivacaine and 0.5 mL of normal saline.

Triamcinolone acetonide is a synthetic corticosteroid medication used intra-articularly to treat various joint conditions. Bupivacaine is a medication used to decrease feeling in a specific area. In nerve blocks, it is injected around a nerve that supplies the area, or into the spinal canal's epidural space. Saline is most commonly used as a sterile 9 g of salt per litre (0.9%) solution, known as normal saline.

The procedure will be performed with the patient in a prone position under a C-arm fluoroscopy scanner, with the thorax rests on 2 pillows, flexing the neck maximally, and the head turns 60-90° away from the side of injection. The C-arm tube will be angled cephalad, until it was at a tangent to the cervical facet joint space. A 26-gauge, 90 mm spinal needle will be inserted parallel to the C-arm beam. To confirm intra-articular placement of the needle tip, an arthrogram of the cervical facet joint will be performed by injecting 0.3 mL of contrast.

The investigators will be assessed pain intensity using the NRS score as the primary outcome. Average pain intensity during the 24 hours before NRS assessment will be investigated. The Numeric Rating Scale (NRS) is the simplest and most commonly used numeric scale in which people rate the pain from 0 (no pain) to 10 (worst pain).

The investigators will be assessed pain intensity using the NRS score as the primary outcome. Average pain intensity during the 24 hours before NRS assessment will be investigated. The Numeric Rating Scale (NRS) is the simplest and most commonly used numeric scale in which people rate the pain from 0 (no pain) to 10 (worst pain).

The investigators will be assessed pain intensity using the NRS score as the primary outcome. Average pain intensity during the 24 hours before NRS assessment will be investigated. The Numeric Rating Scale (NRS) is the simplest and most commonly used numeric scale in which people rate the pain from 0 (no pain) to 10 (worst pain).