Cervicogenic dizziness — dizziness arising from the cervical spine — is one of the most contested and simultaneously most underappreciated diagnoses in vestibular rehabilitation. Contested because it lacks a single definitive diagnostic test. Underappreciated because when a clinician misses it, the patient often cycles through ENT, neurology, and cardiology workups before landing in the right clinical hands.
The Mechanism
The upper cervical spine contains a high density of mechanoreceptors that contribute to gaze, balance, and spatial orientation. When cervical input is altered — through injury, degenerative change, or sustained postures — the CNS receives conflicting afferent signals. The result is unsteadiness, fogginess, or floating dizziness, usually with neck pain or stiffness.
Key concept: Cervicogenic dizziness is a diagnosis of inclusion and exclusion. Positive cervical findings AND ruling out vestibular/CNS causes both required.
Clinical Presentation
- •Dizziness as unsteadiness, fogginess, or floating — rarely true vertigo
- •Worsened by neck movement or sustained cervical postures
- •Associated neck pain, stiffness, or suboccipital headache
- •History of whiplash or significant cervical degenerative disease
- •Symptoms reproduced by palpation of upper cervical structures
- •Episodes last minutes to hours, fluctuating throughout the day
The Diagnostic Framework
Five-step protocol: subjective interrogation, Dix-Hallpike to rule out BPPV, cervical physical exam (ROM, segmental, muscle), Smooth Pursuit Neck Torsion Test, and vascular screening.
The Smooth Pursuit Neck Torsion Test (SPNT)
The most clinically validated test for cervicogenic dizziness. The patient follows a target with the eyes while the trunk is rotated to introduce cervical torsion. Smooth pursuit is compared in neutral vs torsioned positions.
A positive test — worsening of pursuit or reproduction of dizziness with neck torsion — indicates abnormal cervical afferent input affecting gaze control.
Red flag cluster: New occipital headache + nausea + diplopia; Horner's syndrome; unilateral limb ataxia; sudden severe neck pain with neurological symptoms. May indicate vertebral artery dissection.
Treatment Approach
Cervicogenic dizziness responds to combined manual therapy + vestibular rehabilitation. Key components: segmental mobilisation of C0-C3, soft tissue release of suboccipitals and SCM, joint position error training, gaze stabilisation in neck-torsioned positions, postural and ergonomic correction, and graded exposure.
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