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Cervical dystonia

Cervical dystonia is a neurological condition in which neck muscles contract involuntarily, pulling the head into a turned, tilted or forward position, often with tremor and persistent neck pain. Targeted injection into the specific overactive muscles is the established first-line treatment, and pain is assessed and treated alongside the movement disorder.

Cervical dystonia is the most common of the focal dystonias. The brain sends sustained, involuntary signals to particular neck muscles, and those muscles pull the head into a position the person cannot fully correct. It is not a problem of the neck bones or discs, and it is not muscle weakness — it is a disorder of motor control, and it responds to treatment directed at the specific muscles doing the pulling.

How it presents

The pattern is described by the direction of pull: torticollis, where the head turns to one side; laterocollis, where it tilts towards a shoulder; anterocollis, where it pulls forward and down; and retrocollis, where it pulls back. Most people have a combination rather than one pure pattern, often with a shoulder that rides up on the affected side. A head tremor is common and is sometimes the first thing noticed.

Pain is part of the condition

Most people with cervical dystonia have neck pain, and for many it is the symptom that troubles them most — more than the posture itself. The pain comes from muscles contracting continuously, from joints held at the end of their range, and over time from secondary changes in the neck. This is one reason the condition sits well in a practice that treats both movement disorders and pain.

The sensory trick. Many people find that lightly touching the face, chin or back of the head eases the pull for a moment. This is a well-recognised feature of dystonia, not imagination, and noticing it can help confirm the diagnosis.

What it is often mistaken for

Cervical dystonia is commonly treated for months or years as ordinary neck pain, muscle strain or a disc problem, because the posture is subtle early on and scans look unremarkable. Delay matters, because the condition responds well to targeted treatment. If your neck pulls or turns and you cannot hold it straight comfortably, that pattern deserves assessment in its own right.

Assessment

The examination works out which muscles are driving each component of the pull, since the combination differs from person to person and determines what is treated. It also looks for a head tremor, assesses range of movement, distinguishes dystonia from other causes of an abnormal head posture, and reviews how much of your pain is coming from the dystonia itself and how much from secondary joint and muscle problems. Where the diagnosis is uncertain or an underlying neurological cause is suspected, a neurology opinion is arranged. Existing neurology reports and details of any previous treatment are valuable — please bring them.

Treatment

Targeted injection into the specific overactive neck muscles is the established first-line treatment. Small amounts are placed directly into the muscles identified at assessment, located with ultrasound or electrical stimulation — accuracy matters in the neck, where muscles lie in layers and treating the wrong one can cause swallowing or head-control problems. The effect develops over one to two weeks, is usually at its fullest by three to four weeks, and gradually wears off over the following months, at which point treatment is repeated. Muscle selection and doses are reviewed and adjusted at each cycle against what actually changed.

Alongside the injections. Physiotherapy directed at posture, range and the muscles that oppose the pull builds on the window the injections create. Oral medication has a limited role and is weighed against sedation and other effects. Where pain persists beyond the dystonia itself — from the facet joints, for instance — that is assessed and treated on its own terms rather than assumed to be part of the dystonia.

What to expect realistically

Most people gain meaningful improvement in posture, pain and function, but the condition is managed rather than cured, and treatment is ongoing. The first cycle is partly a calibration — the pattern of response tells us what to adjust. Goals are set with you at the outset so that success is judged against what matters to you: driving, working at a screen, sleeping, or simply holding your head where you want it.

Risks

Whilst pain procedures are generally safe and well tolerated, all procedures carry risks. The specific risks relevant to you and your procedure will be discussed with you, and written information provided, before you decide to proceed.

Where treatment happens and how to be referred

Injections are performed in the rooms at Mount Lawley; no fasting is required, and local anaesthetic, regional anaesthesia (nerve blocks) or systemic pain relief is offered for comfort where appropriate. A referral is required, and is accepted from GPs, neurologists, rehabilitation physicians and hospital services. Fees and any funding requirements are explained in writing before treatment proceeds. Telehealth assessment and review are available for rural and remote Western Australian patients, with injection visits scheduled in Perth.

Sources: Dystonia Network of Australia; Healthdirect Australia.

Common questions

What is cervical dystonia?
Cervical dystonia is a neurological condition in which particular neck muscles contract involuntarily and pull the head into an abnormal position — turning, tilting, pulling forward or back — often with a tremor. It is the most common focal dystonia and usually causes neck pain as well as the abnormal posture.

Is cervical dystonia the same as a stiff neck or a pinched nerve?
No. A stiff neck and nerve compression come from the joints, discs and nerves of the neck. Cervical dystonia comes from abnormal motor signals in the brain, so scans of the neck are typically unremarkable. It is frequently mistaken for ordinary neck pain, which is why people often go a long time before it is recognised.

Is cervical dystonia the same as spasticity?
No. Both involve muscle overactivity, but spasticity follows injury to the brain or spinal cord and affects limbs, while cervical dystonia is a movement disorder of the neck with no such injury. They are assessed differently, though both are treated with targeted muscle injections.

How is cervical dystonia treated?
Targeted injection into the specific overactive muscles is the established first-line treatment. The muscles responsible are identified on examination and located with ultrasound or electrical stimulation. The effect builds over one to two weeks, lasts a number of months, and treatment is repeated. Physiotherapy alongside it helps hold the gains.

Will the treatment cure it?
No. Cervical dystonia is managed rather than cured, and treatment continues on a cycle. Most people gain meaningful improvement in posture, pain and day-to-day function, and the plan is reviewed against the goals agreed at the start.

Do I need a referral?
Yes. A referral from a GP or specialist is required both to be seen and to claim a Medicare rebate. Referrals are accepted from GPs, neurologists, rehabilitation physicians and hospital services, by Healthlink (EDI painmdwa), fax or email. Your GP can refer you for assessment even if the diagnosis has not yet been confirmed.