Treatment for Whiplash Injury

Objective: Cervical facet joint (CFJ) pain is commonly seen after whiplash injuries, and is frequently refractory to physical therapy and oral medication. The investigators will evaluate the effectiveness of intra-articular corticosteroid injection for managing whiplash-related CFJ pain. Methods: The investigators will recruit 32 patients with chronic and persistent CFJ pain (≥ 3 on the Numeric Rating Scale \[NRS\]) despite physical therapy and oral medication. Under fluoroscopy guidance, The investigators will inject 10 mg (0.25 mL) of triamcinolone acetonide, mixed with 0.25 mL of 0.125% bupivacaine and 0.5 mL of normal saline. At 1 and 2 months after the injection, pain intensity will be reassessed using the NRS.