Tethered cord syndrome is a problem that affects a dog’s spine and nervous system. It can cause pain, trouble walking, and strange behaviors that are sometimes hard to explain. Until recently, this condition was not well understood in dogs, but new research is helping veterinarians recognize and treat it better.
Inside a dog’s back is the spinal cord, which carries messages between the brain and the body. The spinal cord normally has a small amount of movement as a dog bends, stretches, or walks. At the end of the spinal cord is a thin, tail-like structure that should be loose and flexible.
In tethered cord syndrome, the spinal cord is held too tightly in place. This tight attachment can pull on the spinal cord when the dog moves. Over time, this pulling can cause pain and problems with how the nerves work.
Diagnosing Tethered Cord Syndrome
Dogs with tethered cord syndrome can show many different signs. Some dogs have low back pain or seem uncomfortable when picked up. Others may walk strangely, have weak back legs, or stumble and fall. Some dogs have trouble sitting, standing, or jumping. In certain cases, dogs may also have problems controlling their bladder or bowels. Because these signs can look like other spine or joint problems, tethered cord syndrome is often missed.
One reason tethered cord syndrome is hard to diagnose is that it can look very similar to lumbosacral disease, sometimes called LS disease. LS disease is a condition that affects the lower back where the spine meets the pelvis. It can also cause pain, weakness in the back legs, difficulty rising, and changes in how a dog walks.* Because the signs overlap so much, some dogs diagnosed with LS disease may actually have tethered cord syndrome, or even a mix of both problems.
Diagnosing tethered cord syndrome can be challenging. Regular X-rays often look normal. Advanced imaging, especially MRI, is very important. In some cases, special MRI studies are done while the dog’s body is positioned in different ways. If the spinal cord does not move like it should, this can be a clue that it is tethered.
A Recent Study
A recent study published in the Journal of Veterinary Internal Medicine by Lampe et al. (https://academic.oup.com/jvim/article/40/1/aalaf031/8429711?login=false)
looked closely at tethered cord syndrome in dogs. The researchers studied 12 dogs that had signs consistent with this condition. These dogs had detailed MRI scans and then underwent surgery to release the tight tissue holding the spinal cord.
During surgery, the goal was to free the spinal cord so it could move more normally. The surgeons carefully released the tissue that was causing the tethering. This type of surgery is delicate, but it treats the root cause of the problem instead of just managing pain.
The results of the study were very encouraging. All of the dogs improved after surgery. Many had less pain, better movement, and improved quality of life. These improvements were seen both shortly after surgery and at longer follow-up visits.
This research is important because it reminds veterinarians to think beyond common diagnoses. Dogs with ongoing low back pain, walking problems, or neurologic signs that do not fully improve with typical treatments for LS disease may need further testing to look for tethered cord syndrome.
Take Away
In summary, tethered cord syndrome is a real and treatable cause of pain and nerve problems in dogs. It can easily be confused with lumbosacral disease, which is why careful exams and advanced imaging are so important. Thanks to new research, veterinarians are getting better at identifying this condition and helping affected dogs feel more comfortable and move better again.
* I have already written about lumbosacral disease on this blog, you can read about here. (https://drbrunke.blog/2025/09/08/degenerative-lumbosacral-disease-in-dogs-from-working-heroes-to-family-companions/)
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