What test should be performed prior to manual therapy treatment of the cervical spine?

The vertebral artery test is essential to perform prior to manual therapy treatment of the cervical spine because it assesses the integrity and patency of the vertebral arteries, which supply blood to the posterior part of the brain. Manual therapy techniques, particularly cervical manipulation or mobilization, can potentially create changes in blood flow or stress the vertebral arteries. Identifying any pre-existing vascular insufficiencies or abnormalities is crucial prior to these interventions to prevent serious complications, such as a vertebrobasilar accident.

This test involves specific positional maneuvers to observe for symptoms like dizziness, visual disturbances, or other neurological signs that may indicate compromised blood flow. If any of these symptoms are provoked during the assessment, it would guide the clinician to avoid manipulative techniques in that area, ensuring patient safety during treatment.

Other options, while relevant in their contexts, do not serve the specific purpose of assessing vascular status before cervical spinal interventions. Thus, the vertebral artery test is the most pertinent choice prior to engaging in manual therapy for the cervical spine.