Journal of manipulative and physiological therapeutics
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J Manipulative Physiol Ther · Feb 1999
Randomized Controlled Trial Clinical TrialChanges and implications of blood flow velocity of the vertebral artery during rotation and extension of the head.
To study the effects of extension and extension-rotation of the head on the blood flow velocity of the vertebral artery experimentally and clinically. ⋯ Extreme rotation and extension are dangerous to patients who have abnormal vertebral arteries when extreme rotatory and extension manipulations are applied. Doctors should be very careful when rotating the patient's head to the right side.