Cervical Dystonia
What is Cervical Dystonia?
Overview
Cervical dystonia (also known as neck dystonia or, historically, spasmodic torticollis) is a neurological movement disorder that causes the muscles in the neck to contract involuntarily. This results in abnormal, often painful, twisting, turning, bending forward (flexion), or pulling backward (extension) of the head and neck.
The condition is caused by abnormal signals originating from deep areas of the brain responsible for movement control, specifically the basal ganglia. Because the problem lies in the brain’s signaling rather than in the muscles themselves, treatments like muscle massage or stretching alone are unlikely to resolve the disorder.
Who is Affected?
While it is relatively uncommon, cervical dystonia is by no means rare. Cervical dystonia often comes on in mid-life but can begin at any age, and typically affects women twice as frequently as men. It manifests as pain or discomfort in the neck.
Cervical Dystonia Symptoms & Causes
Symptoms
The hallmark of cervical dystonia is an involuntary turning, tilting, or shifting of the head and neck.
About half of patients experience neck pain, which can range from mild to severe.
Patients often report that touching their head or face in a particular way can temporarily improve the position; this is known as a geste antagoniste or sensory trick.
In addition to neck pain, many patients may manifest with an isolated head tremor (meaning tremor involving the head and neck and not involving the arms or legs). Tremor in cervical dystonia tends to be jerky and irregular, and often is worse in the direction of the head away from the abnormal positioning. So, if cervical dystonia is causing a head turn to the right, tremor may be worse when the patient attempts to turn their head to the left.
Stress may worsen dystonia and relaxation techniques can help somewhat.
Unfortunately, cervical dystonia is often misdiagnosed or its diagnosis delayed because both patients and physicians may attribute the neck pain to more common musculoskeletal causes such as musculoskeletal strain or cervical radiculopathy (pinched nerve).
Causes
Cervical dystonia is caused by abnormal signals in the brain’s basal ganglia, the deep brain structures that control movement. These faulty signals cause the neck muscles to contract involuntarily.
It is not caused by a primary problem in the neck muscles themselves, so massage or stretching alone cannot correct the underlying problem—although such measures may provide temporary relief of discomfort.
In many cases, the cause is unknown (idiopathic cervical dystonia). In others, it may be related to:
- Genetic factors
- Certain medications
- Past neck injury
- Other neurological disorders
When to See a Doctor
Early diagnosis and treatment can help reduce symptoms, improve quality of life, and prevent progression. A neurologist specializing in movement disorders is best equipped to evaluate and manage cervical dystonia. You should seek medical evaluation if you experience:
- Persistent or progressive abnormal neck posture
- Neck pain that does not improve with typical measures
- Unexplained head tremor
- Difficulty moving your head or holding it upright
- Symptoms affecting daily activities, work, or driving
Cervical Dystonia Diagnosis
Cervical dystonia is usually diagnosed through a detailed clinical examination by a neurologist experienced in movement disorders.
A specialized tool called the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) is often used to measure the type and severity of cervical dystonia. This assessment typically includes video recording of the patient’s movements, done with their consent, to help track symptoms over time and guide treatment.
If dystonia affects other parts of the body in addition to the neck, further evaluation may be needed to rule out other causes. Genetic factors may play a larger role than currently understood. Specific genetic syndromes include:
- DYT1 generalized dystonia
- Dopa-responsive dystonia (Segawa syndrome)
- Rapid onset dystonia-parkinsonism
For patients with early-onset dystonia—especially if symptoms involve the legs and improve after sleep—a trial of levodopa medication is recommended. A strong positive response to levodopa supports the diagnosis of dopa-responsive dystonia.
In some cases, doctors may order a brain MRI and blood or urine tests to exclude other potential causes of adult-onset idiopathic (primary) cervical dystonia.
Cervical Dystonia Treatment & Outcomes
Treatment Options
The mainstay of treatment of cervical dystonia is with injection of botulinum toxin, such as Botox or Xeomin. Botulinum toxin injections work by causing a disruption between the nerve and the muscle, thereby weakening the muscle that it is injected into. For cervical dystonia, because the muscles that are pulling or twisting the neck to one side are overactive, Botox works to calm those specific muscles down and allows for a more natural and neutral head position.
EMG guidance during Botox injections is used to verify muscle activity. 100 to 300 units are injected divided into 4 to 12 injections at a time. The entire procedure takes about 20-30 minutes in the clinic.
Botox takes about 3-7 days after injection to show activity, and the duration of effect lasts about 10-14 weeks. Most patients return every 12 weeks for repeat injection.
Side effects can occur if the toxin spreads to nearby muscles and may include:
- Neck weakness or difficulty holding the head up
- Neck pain
- Swallowing difficulties
- Rarely, slurred speech
These side effects generally resolve as the medication wears off.
For some patients, botulinum toxin alone may not fully control symptoms. In these cases, oral medications can be added, including:
- Benzodiazepines (e.g., clonazepam)
- Anticholinergics (e.g., trihexyphenidyl)
- Muscle relaxants (e.g., baclofen)
All of these medications can be associated with muscle weakness, somnolence (sleepiness), dizziness, imbalance, and fogginess. In addition, trihexiphenidyl can cause dry mouth, nausea, constipation, urinary retention (inability to urinate) and confusion. Therefore, these oral medications are not considered first line over botulinum toxin injection.
Patients whose dystonia does not respond to botulinum toxin injection may be good candidates for deep brain stimulation surgery (DBS) for dystonia. DBS is like a pacemaker for the brain and results in non-permanent suppression of a deep part of the brain.
Patient Outcomes
Early diagnosis and individualized treatment planning are key to achieving the best outcomes and maintaining daily function.
With appropriate treatment, many patients experience significant improvement in symptoms and quality of life. Botulinum toxin injections are effective in reducing abnormal neck postures and associated pain for most people with cervical dystonia.
Side effects from treatments are generally manageable and temporary. Long-term follow-up with a movement disorders specialist helps optimize therapy and adjust treatments as needed.
Deep brain stimulation has shown promising results for patients with severe or treatment-resistant dystonia, improving motor function and reducing disability.
Managing Cervical Dystonia
Living with cervical dystonia requires ongoing management to reduce symptoms, maintain comfort, and improve quality of life. Work closely with your movement neurologist and physical therapist to tailor a management plan that fits your lifestyle and symptom pattern.
Follow Your Treatment Plan
Follow your treatment plan closely, including regular botulinum toxin injections or medications as prescribed.
Practice Stretching & Posture Exercises
Practice gentle stretching and posture exercises as recommended by your healthcare provider or physical therapist.
Use Relaxation Techniques
Such as deep breathing, meditation, or yoga to help reduce stress, which can worsen symptoms.
Avoid Triggers
Avoid triggers that increase neck tension, such as poor ergonomics, prolonged sitting, or repetitive neck movements.
Healthy Lifestyle
Maintain a healthy lifestyle, including adequate sleep, balanced nutrition, and regular low-impact exercise.
Meet our Expert Specialists & Surgeons
Experience Compassionate, Expert Care
At Pacific Neuroscience Institute, we provide specialized care for cervical dystonia through a multidisciplinary team including movement disorders neurologists, physical therapists, and restorative neurosurgeons.
Our experts have extensive experience diagnosing and treating cervical dystonia using the latest advances in botulinum toxin therapy, oral medications, and surgical options like deep brain stimulation.
We take a personalized approach, ensuring each patient receives compassionate care and a treatment plan designed for the best possible outcomes and improved quality of life.
Learn More About Cervical Dystonia
While cervical dystonia is a chronic condition, many patients achieve good symptom control with treatment and maintain an active, fulfilling life.
It results from abnormal signaling in brain regions that control movement, particularly the basal ganglia. The exact cause is often unknown but may involve genetic and environmental factors.
Cervical dystonia usually does not completely resolve on its own, but symptoms can be managed effectively with treatment.
Stress does not cause dystonia but can worsen symptoms in many patients.
Treatment with botulinum toxin injections, relaxation techniques, physical therapy, and stress management can help calm symptoms.
The root cause involves abnormal brain signaling affecting muscle control, not a problem with the muscles themselves.
Without treatment, symptoms may worsen, causing increased pain, disability, and reduced quality of life.
No, cervical dystonia is not an autoimmune disorder.
Botulinum toxin injections are the first-line treatment. Additional medications or deep brain stimulation may be used if needed.
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If you are experiencing symptoms of cervical dystonia, don’t wait to seek help. Our experienced specialists at Pacific Neuroscience Institute offer personalized, leading-edge care to diagnose, treat, and manage your condition for the best possible outcomes.