The short version

Spondylosis deformans is the formation of bony spurs (osteophytes) along vertebral body edges. It is common in older dogs, often found incidentally on X-ray, and frequently causes no symptoms at all. When it does cause problems, they are typically stiffness after rest and reduced spinal mobility. Management is conservative: weight, consistent exercise, and rehabilitation. Surgical intervention is rarely needed.

Quick facts

  • What it is: degenerative formation of osteophytes along vertebral body edges, typically at disc spaces that have lost height. The thoracolumbar junction (T11-L2) and lumbosacral junction are the most common sites. Multiple levels are frequently affected simultaneously.
  • Who tends to be affected: older dogs, most commonly from middle age onward. Large breeds are more commonly symptomatic; Dachshunds and other chondrodystrophic breeds have high prevalence. Both sexes equally.
  • The hallmark sign: stiffness after rest that eases with movement, reluctance to turn or bend, and a shortened stride. Many dogs have no signs at all despite extensive radiographic changes.
  • Diagnosis: plain spinal radiographs show the osteophytes clearly. MRI is only needed if neurological signs are present (osteophyte impingement on the spinal cord is rare but does occur).
  • Treatment: conservative management in the vast majority: weight control, regular moderate exercise, rehabilitation, and anti-inflammatories when symptomatic. Surgery is reserved for the rare cases with neurological involvement.

What spondylosis is

Spondylosis deformans is the formation of osteophytes (bony projections that grow from the edges of vertebral bodies) at sites where intervertebral discs have lost height and the vertebral end plates are under abnormal mechanical stress. The bone grows as the body attempts to stabilise a segment that is moving more than it should. The result, over months and years, is varying degrees of bony bridging between vertebrae.

The thoracolumbar junction (around T11 to L2) and the lumbosacral junction are the sites where mechanical stress is highest in the canine spine, and correspondingly the most common places for spondylosis to develop. Multiple levels are often affected simultaneously. The condition is progressive and lifelong, though the rate varies widely between dogs.

Crucially: spondylosis is a radiographic finding. The X-ray shows osteophytes. Whether the dog has any symptoms from them is a separate question, and the answer is often no. A dog can have bridging osteophytes across several vertebral levels and walk, run, and play normally. The reverse is also true: a dog with modest radiographic changes can be stiff and uncomfortable. The imaging and the clinical picture do not reliably match.

Found on X-ray and your dog feels fine. Now what?

This is the most common spondylosis scenario. An X-ray is taken for something else (presurgical screen, wellness check, investigation of a different problem) and the radiologist notes spondylosis. You go home with a diagnosis and a dog who is behaving normally.

In most cases, nothing needs to change immediately. Spondylosis found incidentally in a dog with no relevant symptoms is a finding to monitor, not to treat. What it tells you: the spine is showing age-related change, and it is worth being attentive to stiffness, reduced flexibility, or reluctance to exercise as the dog gets older. Keep weight ideal. Keep exercise consistent. That is usually enough.

When spondylosis causes symptoms

The majority of dogs with radiographic spondylosis never develop clinical signs. When symptoms do appear, they tend to follow a pattern: worse after rest, better once the dog warms up.

  • Stiffness after lying down or sleeping, particularly in the mornings, that eases after 10 to 15 minutes of gentle movement
  • Reluctance to turn the head or neck sideways, or to bend through the trunk when sniffing the ground
  • Shortened stride, as if the dog is taking smaller steps to avoid rotating the spine fully
  • Reluctance to climb stairs, jump onto furniture, or get into the car
  • Pain on spinal palpation (vet finding on examination, not usually obvious at home)
  • In rare cases where osteophytes impinge on the spinal cord or nerve roots: hindlimb weakness, ataxia, or bladder changes

Neurological signs (weakness, stumbling, loss of bladder control) are not typical spondylosis presentations. When they occur alongside a known spondylosis diagnosis, they need MRI to distinguish osteophyte impingement from a concurrent condition like IVDD or a spinal tumour. Do not attribute neurological signs to spondylosis alone without imaging.

What you can do at home

For the majority of dogs with spondylosis, owner-managed home care drives more of the outcome than clinic treatment. These seven things make a measurable difference.

  • Keep weight at ideal body conditionExtra weight loads every vertebral joint. In spondylosis, where the disc spaces are already narrowed and the vertebral bodies are under increased stress, carrying excess body mass accelerates both the radiographic changes and the symptom burden. Reaching and holding ideal weight is the most impactful single change an owner can make.
  • Exercise consistently, not in burstsThe worst pattern for spondylosis is low activity through the week and a long, vigorous outing at the weekend. Inconsistent loading inflames already-stressed segments. Short, daily walks on predictable, flat terrain maintain spinal mobility far better than sporadic long sessions. If your dog is stiff, shorter and more frequent is better than longer and less often.
  • Warm up before activityStart each walk or exercise session with 5 minutes of slow, easy movement before increasing pace. Cold, stiff spinal joints and paraspinal muscles resist movement. Warming up reduces the risk of acute flares and makes the session more comfortable. This matters more in Singapore's air-conditioned environments, where dogs can go from cool indoor temperatures to outdoor activity rapidly.
  • Non-slip mats on all hard floorsDogs with reduced spinal flexibility compensate by bracing. On slippery floors, they grip harder with the limbs, which loads the paraspinal muscles unevenly and can trigger flares. Non-slip mats in all main areas of the house, particularly where the dog sleeps, eats, and transitions between surfaces, reduce this compensation significantly.
  • Raised food and water bowlsEating and drinking from floor level requires repeated spinal flexion. For a dog with thoracolumbar spondylosis, this is a repetitive, low-grade irritant several times a day. Raising bowls to elbow height removes the flexion requirement entirely. A simple, inexpensive change with measurable impact on daily comfort.
  • Swimming or hydrotherapy on bad daysWhen the dog is stiff after a weather change, a difficult week, or a day that pushed limits, water exercise replaces land walks without compressive spinal load. Swimming allows full trunk and limb movement without the jarring of footstrike. Build access to water exercise into the routine rather than reaching for it only in crisis.
  • Know when symptoms are neurological, not musculoskeletalStiffness and reluctance to move are typical spondylosis symptoms. Hindlimb weakness, crossing of the legs, stumbling, or loss of bladder control are not. If any of these appear in a dog with known spondylosis, they need imaging rather than conservative management. Do not attribute neurological signs to spondylosis without ruling out osteophyte impingement or a concurrent condition.

How AURA helps with spondylosis

Spondylosis is managed, not cured. Rehabilitation focuses on maintaining spinal mobility, reducing paraspinal muscle tension, and slowing the secondary stiffness that builds when dogs start guarding the affected segments.

PhysiotherapySpinal mobility work and targeted core strengthening are the foundation of spondylosis management. When the deep stabilising muscles along the spine are strong, the vertebral segments carry less load during movement and daily life is more comfortable. Joint mobilisation techniques reduce the stiffness that builds around affected segments. AURA also designs the home exercise programme that runs between sessions.
HydrotherapySwimming allows full trunk and limb movement through range without the compressive load of land exercise. It is particularly useful on high-stiffness days, during cold spells, or as a complement to land-based physiotherapy. The warm water reduces paraspinal muscle guarding, making it easier to achieve range of motion that would otherwise require more time on land.
Underwater treadmillGait retraining at controlled spinal load. Dogs with spondylosis often shorten their stride to avoid spinal rotation; the underwater treadmill allows gait work at water levels that reduce body weight while keeping the stride pattern correct. Useful when land exercise is producing flares or when the dog is guarding the trunk during walking.
Pain managementLaser therapy reaches the deep paraspinal tissues and reduces local inflammation around the affected vertebral levels. TENS addresses the muscle spasm that often accompanies symptomatic spondylosis. For dogs on long-term NSAIDs for other conditions, AURA's pain management modalities provide additional relief without adding to the drug load.

Dog stiff in the mornings, reluctant to bend or turn?

Send us a note on WhatsApp. We can tell you whether the pattern fits spondylosis, whether rehabilitation would help at this stage, and what a programme would look like for your dog specifically.

WhatsApp AURA

Living with spondylosis long term

Spondylosis is a lifelong condition that most dogs live with comfortably for years with the right management. The radiographic changes continue slowly; the symptoms don't have to. Three things make the most difference over time.

01

Maintain ideal weight throughout life

This is not a once-achieved goal. Dogs gain weight slowly as they age and become less active, and spondylosis itself can reduce exercise tolerance and accelerate weight gain. Regular weigh-ins (monthly is enough) catch creep early. AURA's physiotherapy assessments include body condition scoring at each visit, and any upward trend gets addressed before it becomes a management problem.

02

Keep exercise structured and predictable

Spondylosis dogs do worst with inconsistent activity: mostly sedentary with occasional vigorous outings. They do best with daily moderate exercise at consistent duration and pace. This is easier to maintain in Singapore than in colder climates because weather is not a barrier to daily walks. The structure matters more than the amount.

03

Annual spinal reassessment

Spondylosis progresses radiographically over years. Most of that progression is asymptomatic, but an annual physiotherapy review catches any change in mobility, muscle tone, and gait that might signal a new symptomatic level. Catching and addressing new stiffness early keeps it from becoming entrenched. This is particularly important in dogs over 10 years old, where multiple conditions can develop simultaneously.

Outlook

Generally good for the majority of dogs. Spondylosis is a progressive structural change that most dogs tolerate with minimal clinical impact. Many reach old age with extensive bridging osteophytes on X-ray and remain active, comfortable, and mobile throughout.

The minority who develop symptomatic disease respond well to conservative management: weight control, consistent exercise, and physiotherapy together produce meaningful improvements in comfort and mobility in most cases. Dogs managed well rarely need to escalate to surgery. The condition plateaus in many dogs once the osteophytes have bridged fully across a segment: the bridging actually stabilises the motion and removes the pain driver.

The small group who develop neurological signs from osteophyte impingement need specialist assessment. Surgical decompression is effective in that context, and post-surgical rehabilitation produces good functional recovery. These cases are the exception, not the rule.

What to ask your vet

Worth a screenshot before the appointment:

  • Which vertebral levels are affected, and is the severity consistent with my dog's symptoms?
  • Is there any narrowing of the spinal canal or nerve root exit that would warrant MRI?
  • Are the symptoms we're seeing from spondylosis, or could a concurrent condition (IVDD, hip dysplasia, arthritis) be contributing?
  • What is your threshold for recommending MRI in a dog with known spondylosis who develops new symptoms?
  • Should we repeat X-rays at any interval, or manage purely by symptoms?
  • What are the early warning signs that spondylosis has become neurological in this dog?

When to call your vet

Most spondylosis is managed slowly and conservatively. Call your vet promptly if any of these appear:

  • Sudden acute worsening in a dog previously stable on conservative management: consider osteophyte impingement, acute disc extrusion at an affected level, or a separate spinal condition developing
  • Any hindlimb weakness, stumbling, crossing of the legs, or coordination problems: neurological signs do not come from uncomplicated spondylosis; they need imaging to find the cause
  • Loss of bladder or bowel control: urgent assessment regardless of known spondylosis diagnosis
  • Severe acute back pain that the dog cannot find a comfortable position for: could be a pathological fracture through an osteophyte or a concurrent problem at an affected level
  • Rapid weight loss combined with spinal pain: rule out neoplastic processes involving the spine, which can mimic spondylosis radiographically in early stages

Common questions about spondylosis

My dog has spondylosis on X-ray but no symptoms. Do I need to do anything?

Not urgently. An incidental spondylosis finding in a clinically normal dog is a monitoring finding, not a treatment trigger. Keep weight at ideal, maintain consistent daily exercise, and watch for stiffness after rest, reluctance to turn, or shortened stride developing over time. An annual physiotherapy assessment is worth doing once spondylosis is confirmed, as it catches early changes in mobility and muscle tone before they become symptomatic. Nothing needs to change today.

What's the difference between spondylosis and IVDD?

Both are degenerative spinal conditions but they affect different structures. Spondylosis deformans is osteophyte formation along the vertebral body edges. It is generally a low-pain condition that stiffens the spine. IVDD is disc material entering the spinal canal and compressing the spinal cord or nerve roots. It is acutely painful and can cause rapid neurological deterioration. The two conditions can occur at the same spinal level simultaneously, and dogs with spondylosis are sometimes at higher risk for IVDD at adjacent levels because of altered spinal mechanics.

Can spondylosis be cured?

No. The osteophytes do not resorb. Spondylosis is managed, not reversed. However, the goal of management is not radiographic improvement; it is maintaining comfort and mobility. Many dogs live well with spondylosis for years. Interestingly, once a segment has fully bridged (the osteophytes have joined across the disc space), that segment is effectively fused and often becomes pain-free again, because the abnormal movement driving the bone formation has been eliminated. The pain from spondylosis is highest during the active formation phase.

What exercises should I avoid with spondylosis?

Avoid sudden, high-impact activity: jumping, fast acceleration and deceleration, rough play, and activities that involve sustained spinal extension or rotation at speed (frisbee, flyball, agility with tight turns). These are high-load movements for a spine with reduced flexibility. Swimming is generally well tolerated and does not involve the compressive forces of footstrike. Leash walking at moderate pace is good. The goal is consistent, moderate activity rather than elimination of exercise entirely.

Does spondylosis always get worse?

Radiographically, yes, slowly. Clinically, not necessarily. The radiographic changes are progressive, but many dogs plateau in terms of symptoms once the condition has stabilised. Some dogs actually become more comfortable as segments bridge fully, because a fused segment no longer moves abnormally. The management goal is preventing the symptomatic worsening that can accompany radiographic progression, which is largely achievable with weight and exercise control.

Is spondylosis painful?

It can be, but it is not always. Many dogs with extensive spondylosis on X-ray show no pain on spinal palpation and have no clinical signs. When spondylosis is symptomatic, the pain is typically low-grade, stiffness-type discomfort rather than acute pain. It is usually worse after rest and improves with gentle movement. Acute severe pain is not a typical spondylosis presentation; if it occurs, it usually indicates something else happening alongside the spondylosis, such as a disc event at an adjacent level.

Sources

  • Morgan JP. Spondylosis deformans in the dog: a morphological study with some aetiological considerations. Acta Orthop Scand Suppl. 1967;96:1–88. PubMed
  • Seiler G, et al. Prevalence of spondylosis deformans in the dachshund and estimated heritability. J Small Anim Pract. 2002;43(8):345–348. PubMed
  • Smolders LA, et al. Intervertebral disc degeneration in the dog. Part 1: anatomy and physiology of the intervertebral disc and characteristics of intervertebral disc degeneration. Vet J. 2013;195(3):282–291. PubMed
  • Jeffery ND, et al. Intervertebral disk degeneration in dogs: consequences, diagnosis, treatment, and future directions. J Vet Intern Med. 2013;27(6):1318–1333. PubMed
  • Levine D, Millis DL (eds). Canine Rehabilitation and Physical Therapy. 2nd ed. Saunders/Elsevier; 2013.

Worried about your animal?

Tell us what you've noticed and how it started. We'll say whether it sounds urgent, whether to come in, and what we'd do.

WhatsApp us Book an assessment