Spinal hardware blocks serve as minimally invasive methods for diagnosing chronic pain in patients who have undergone spinal fusion surgery. Hardware blocks involve the administration of nerve-blocking substances into the patient’s spinal area where devices have been placed. If a medication alleviates your discomfort, it indicates that the hardware is the cause of your spinal or back issues. Spinal Hardware Block Injections can be found at the Global Neuro and Spine Institute.