Cervical collars – why do they help some people and not others?

Ross Hauser, MD and Brian Hutcheson, DC

Many patients we see have a long history of neck pain treatment. One of the treatments or therapies that they have been prescribed is the use of a cervical collar or cervical traction in an attempt to alleviate the patient’s symptoms by stretching the spinal vertebrae to relieve pressure and pain on the nerves that transverse the cervical vertebrae. For many patients, this will provide relief of symptoms. For some patients, the cervical collar may cause more problems than it was designed to help.  The automatic prescription of a cervical collar in instances of neck pain should not be automatic, but, carefully considered in each patient’s situation to maximize benefit and minimalize complication.

When should a cervical collar be used to treat neck pain?

The above question was asked by a team lead by Harvard Medical School researchers in a 2008 paper appearing in the journal Current Reviews in Musculoskeletal Medicine.(1)

Let’s look at what this paper says:

Although cervical collars are a seemingly benign intervention, they can have adverse effects, especially when used for longer periods of time. It is feared that a long period of immobilization, can result in atrophy-related secondary damage. Many physicians cite anecdotal evidence of their clinical utility and soft cervical collars are often prescribed by convention for patients complaining of neck pain. The use of cervical collars to treat neck pain is an area of controversy.

Comment: Below we discuss the challenges and problems a patient may face in prolonged cervical spine immobilization.

Back to this study, the researchers looked at whiplash patients, traumatic injury patients, and patients with cervical radiculopathy.

In whiplash patients, most studies suggest that early mobilization and activity is superior to immobilization and soft cervical collar use. However, more recent studies have not found any long-term benefits of early aggressive treatment as compared to immobilization. Therefore, no definite conclusion can be drawn about the efficacy of cervical collars in this population. Our conclusions are that cervical collars should not be universally recommended to all whiplash patients. However, for patients who find it useful for symptom relief, a soft cervical collar for 10 days or less has not been shown to have any adverse impact.

Rigid cervical collars have a well-established role in the acute management of trauma patients to prevent instability of the cervical spine. They also may play a role in the conservative treatment of certain types of cervical fractures such as nondisplaced axis fractures and C2 body fractures. However, since most of the studies done in patients with fractures, were case series and lacked an adequate control group, no specific recommendations can be made in this population.

Several studies suggest that hard cervical collars may play a role in the conservative management of cervical radiculopathy. However, sufficient evidence is lacking to advocate its routine usage. Further studies are needed for patients with non-traumatic axial neck pain, and radicular pain with or without trauma to understand the role that cervical collars may play in their management.”

That of course was a 2008 study. Have recommendations changed in the 12 years since? No

Here are the observations of an April 2020 study published in the Yeungnam University Journal of Medicine.(2)

In examining the Philadelphia collar, a more rigid plastic molded collar, the researchers noted that the “Philadelphia collar slightly reduces the load on the spine by promoting the correct posture at the cervical spine and plays a role in limiting the cervical flexion/extension, lateral flexions and rotation. Nonetheless, some pressure may be applied on the clavicle by the Philadelphia collar. Considering that excessive pressure can cause discomfort or pressure sores, special attention is required for users with sensitive skin. The Philadelphia collar can be used to treat injuries of the bones and ligaments in the mid-cervical spine region and for postsurgical stabilization. In addition, it can be used instead of the halo orthosis to stabilize upper cervical fractures (Jefferson and hangman’s fractures) and fractures of the odontoid process.”

So the conclusion we arrive at again is: For some patients, a soft or rigid collar can be helpful when used appropriately. But it should not be used always.

Is my collar too tight? Is it making my symptoms worse?

An April 2020 randomized controlled trial study published in the journal Medicine (3) measured the effect of different cervical collars on optic nerve sheath diameter. Optic nerve sheath diameter was used as a compression measurement to see if the collars caused determintal effects of venous compression which would develop into intracranial pressure.

Learning points of this research were:

Cervical collars – why they help some people and not others?

In this video, Ross Hauser, MD and Brian Hutcheson, DC discuss the use of cervical collars in patients with cervical neck instability. Specifically when the collars help, and, when the collars do not help. Below the video is a summary transcript and explanatory notes and references.

Dr. Hauser: Over the years we have kept track and studied why some of our patients did not respond well to treatment. In over 27 years of helping patients, we have continuously used these observations to change, develop, and advance our treatment protocols to adjust for our findings and to maximize treatment benefits.

This helps us understand why two patients with similar DMX findings (digital motion x-ray) and symptoms take different healing paths where one patient will show excellent results after 3 – 4 visits, and another patient will be on their sixth visit and be struggling.

A case history: Young female patient with cervical spine instability and a collar comparison

We took a young female patient who had cervical spine instability, very loose neck ligaments. We did DMX imaging (displayed and explained in the image below). 

In this image we have a patient who had DMX imaging done: 1) Without a collar 2) With a standard over the counter type collar 3) With a Hauser Hatto collar or a collar that had more stability to it. (Similar collars can be recommended by your doctors or researched online.) This collar is not necessary in all patients.

In this image took a young female patient who had cervical spine instability and very loose neck ligaments and did DMX imaging. The patient has significant left side C1-C2 instability. When wearing one type of collar, the instability was not helped. Then we put her in a normal (over the counter type) cervical collar, something you would get at the CVS or the Walgreens or online. Sometimes, in some patients, this type of collar is enough to limit motion and provide patient benefit. HOWEVER, when we repeated the DMX Imaging, with the patient wearing the collar, you could see that she still had C1 C2 instability, it wasn't stabilizing her. We then put her in a Hauser-Hatto collar which we offer to some patients to provide added support to the collar immobilization. This was the right collar for this patient because as she tried to bend or flex her neck, the collar held her in proper alignment. This helps us demonstrate that  while we treat the cervical ligaments to strengthen them and bring stability into the cervical spine, we need good, temporary immobilization to allow our treatments to achieve maximum benefit.

In this image we have a patient who had DMX imaging done: 1) Without a collar 2) With a standard over the counter type collar 3) With a Hauser Hatto collar or a collar that had more stability to it. (Similar collars can be recommended by your doctors or researched online.) This collar is not necessary in all patients.

At 2:30 of the video, Dr. Hutcheson explains immobilization of the cervical spine as a temporary help

“Do a collar check”

Static and Dynamic imaging and checking the collar

Dr: Hauser (4:00 of the video) we do static and dynamic (motion) imaging to test and check the collar in some patients and depending on their case.

C1-C2 position while the collar is on

Dr. Hutcheson (5:53) of the video

Understanding the proper collar can be pretty comprehensive. 

Caring Medical Florida and the Hauser Neck Center

Our office is conveniently located approximately 30 minutes from Southwest Florida International Airport (RSW) and within 1-3 hours of most patients driving from south Florida. If you are visiting from out of town and staying in the area for a few days, we hope you will experience some of the beauty that this area has to offer. We understand and appreciate the great distances that our patients travel to get to our clinic and we are pleased to give our recommendations to help make your trip as smooth as possible.

How do I know if I’m a good candidate? Can I get help now?

Just like you, we want to make sure you are a good fit for our clinic ahead of your appointment. We value your time and we also schedule a lot of time with our providers and team to accommodate your visit. Many of the patients who require our specialists’ care are traveling from out of the state and internationally, but even if you are located within a few hours of our clinic, we want to make sure you are a good fit for us first. Please contact us using the form on this page.


1 Muzin S, Isaac Z, Walker J, El Abd O, Baima J. When should a cervical collar be used to treat neck pain?. Current Reviews in Musculoskeletal Medicine. 2008 Jun;1(2):114. [Google Scholar]
2 Choo YJ, Chang MC. Effectiveness of orthoses for treatment in patients with spinal pain. Yeungnam University Journal of Medicine. 2020 Apr;37(2):84. [Google Scholar]
3 Ladny M, Smereka J, Ahuja S, Szarpak L, Ruetzler K, Ladny JR. Effect of 5 different cervical collars on optic nerve sheath diameter: A randomized crossover trial. Medicine. 2020 Apr 1;99(16):e19740. [Google Scholar]

This page was updated January 21, 2021

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