TürkçeA cervical herniated disc may, in some cases, cause complaints of dizziness. In particular, nerve compression in the cervical vertebrae or musculoskeletal circulation disorders may affect the balance centers and create a sensation of dizziness. This condition is referred to as cervicogenic vertigo.
Dizziness originating from the cervical spine generally increases with neck movements. Individuals with a cervical herniated disc may experience loss of balance and a spinning sensation after sudden head movements, prolonged static postures, or traumatic strain. This type of vertigo differs from other vestibular disorders.
Dizziness associated with a cervical herniated disc is usually accompanied by neck pain and headaches. Muscle spasms and muscle tension accompanying this condition may also intensify the dizziness. The diagnosis should be confirmed through physical examination and imaging methods.
Physical therapy and neck exercises play an important role in the management of dizziness associated with a cervical herniated disc. In addition, posture correction, ergonomic lifestyle habits, and medical treatment when necessary can significantly control the symptoms.
How Is the Relationship Between a Cervical Herniated Disc and the Balance System Explained?
Postural balance is a complex function created by the central nervous system through the integration of three primary sensory inputs. The brain continuously compares and verifies the information received from these systems in order to accurately perceive the body’s position in space.
These systems are as follows:
- Vestibular system: Detects head movements and gravity
- Visual system: Provides environmental references and the horizon line
- Proprioceptive system: Transmits positional information from the muscles, joints, and ligaments
The cervical region, particularly the upper cervical segments, is one of the areas of the body with the highest concentration of proprioceptive receptors. The deep neck muscles and joints transmit millimetric information to the brain regarding the position of the head relative to the body.
Cervical disc herniation, degenerative changes, or chronic muscle spasms disrupt this delicate feedback system. A sensory mismatch develops between the incorrect proprioceptive signals originating from the neck and the vestibular and visual inputs. The brain perceives these conflicting signals as dizziness, imbalance, or a feeling of lightheadedness.
By Which Mechanisms Does a Cervical Herniated Disc Affect the Balance System?
The pathophysiology of cervical vertigo cannot be explained by a single mechanism; in most cases, multiple factors play a simultaneous role:
- Proprioceptive dysfunction:
Disc herniation or facet joint pathologies compress nerve roots and disrupt the transmission of positional information. - Inflammatory processes:
Local inflammation leads to increased levels of mediators such as histamine, prostaglandins, and lactic acid. This sensitizes nerve endings and increases reflex muscle spasms. - Vascular effects:
The vertebral arteries pass through the cervical vertebrae and supply the cerebellum and brainstem. In cases of advanced degeneration or osteophyte formation, temporary reductions in blood flow may occur, especially during head rotation. - Autonomic nervous system involvement:
Irritation of the cervical sympathetic chain may intensify dizziness and visual symptoms.
The main mechanisms are as follows:
- Disc herniation
- Nerve root compression
- Muscle spindle dysfunction
- Inflammatory mediators
- Vertebral artery compression
- Cervical osteophytes
- Sympathetic nerve irritation
What Are the Symptoms of Cervical Vertigo and How Does It Differ from Other Types of Dizziness?
Clinically, cervical vertigo has characteristics that differ from vertigo originating from the inner ear. While severe rotational vertigo, nausea, and vomiting are typically predominant in inner ear disorders, imbalance and a feeling of lightheadedness are more prominent in cervical vertigo.
Common expressions used by patients include:
- “I feel like I’m drunk.”
- “It feels like the ground is slipping beneath my feet.”
- “I feel like I’m walking on a boat.”
- “My head feels empty.”
The complaints may last for minutes or hours and generally increase in parallel with the severity of neck pain. Prolonged computer use, sudden head movements, and poor posture are particularly common triggering factors.
Common symptoms:
- Lightheadedness and instability
- Impaired balance while walking
- Neck and shoulder pain
- Difficulty concentrating
- Blurred vision
- A feeling of heaviness in the head
- Mild nausea
- A sensation of fullness in the ear
How Is Cervical Vertigo Diagnosed in an Audiology Clinic?
The diagnosis of cervical vertigo is based on the principle of a diagnosis of exclusion. Vestibular, neurological, cardiovascular, and central causes must first be systematically ruled out. During this process, audiologists play a key role in the functional evaluation of the balance system.
The diagnostic process includes the following steps:
- Detailed medical history
- Neurological and ENT evaluation
- Audiological and vestibular tests
- Radiological imaging (cervical MRI)
- Posturographic analyses
The detection of a herniated disc on MRI alone is not sufficient for diagnosis; what matters is whether this pathology functionally affects the balance system.
Diagnostic Tests Used for Cervical Vertigo
The main tests used in audiology clinics when cervical vertigo is suspected are as follows:
- Videonystagmography (VNG)
- Neck torsion test
- Video Head Impulse Test (vHIT)
- Caloric test
- Cervical VEMP (cVEMP)
- Ocular VEMP (oVEMP)
- Computerized dynamic posturography
In particular, the neck torsion test evaluates only cervical proprioceptive inputs by excluding the inner ear and provides strong diagnostic evidence for cervicogenic dizziness.
Drug-Free Treatment for Cervical Vertigo: Vestibular Rehabilitation
The primary approach in the treatment of cervicogenic dizziness is vestibular rehabilitation. However, the diagnosis must first be confirmed. Long-term use of vestibular suppressant medications is not recommended because they may negatively affect central compensation mechanisms.
Vestibular rehabilitation is an exercise-based treatment that aims to help the brain adapt to incorrect sensory inputs by utilizing its neuroplasticity. Programs are planned individually and are based on three fundamental strategies:
- Adaptation
- Habituation
- Substitution
Exercises Applied During the Rehabilitation Process
Commonly used exercise groups are as follows:
- Postural alignment training
- Virtual reality-supported proprioceptive exercises
- Gaze stabilization exercises
- Vestibulo-ocular reflex training
- Optokinetic stimulation
- Dynamic balance exercises such as tandem walking and balance board training
These exercises improve both static and dynamic balance, enabling patients to return to daily life with confidence.
Points to Consider in Daily Life
The effectiveness of treatment is directly related to lifestyle modifications. In particular, the prolonged forward-bent posture known as text neck negatively affects the cervical proprioceptive system.
Recommendations:
- Ergonomic workstation setup
- Keeping screens at eye level
- Taking a break every 20–30 minutes
- Choosing an appropriate pillow
- Stress management
- Avoiding sudden neck movements
Recovery Process After Treatment
Vestibular rehabilitation requires patience and regular practice. A temporary increase in symptoms may occur during the first weeks; this indicates that central adaptation has begun and that the system is being stimulated appropriately.
Generally, after a regular 4–8 week program, significant clinical improvement is achieved in 75–80% of patients. As dizziness decreases, the fear of falling is reduced, functional independence and quality of life improve, and greater individualization and independence are achieved.
Factors affecting success:
- Early diagnosis
- Patient compliance
- Exercise continuity
- Stress level
- Coexisting diseases
- Lifestyle changes
Frequently Asked Questions
Dr. Audiologist Emel Uğur was born in 1982 in Çanakkale. She specialized in Pediatric Audiology, Otologic Disorders, and Vestibular System Disorders, and served for 15 years at the Istanbul Training and Research Hospital. In 2015, she joined the Acıbadem Healthcare Group. She currently works as an Audiologist at the Acıbadem Altunizade Hospital and also serves as a faculty member and program director in the Acıbadem University Vocational School of Health Services Audiometry Program.
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