Discospondylitis
This page is for educational purposes only and is not a substitute for veterinary diagnosis or emergency care. Always consult your primary veterinarian or a rehabilitation veterinarian before starting treatment. If your pet cannot walk, has sudden paralysis, severe pain, or breathing difficulty, seek urgent veterinary attention.
What is Discospondylitis?
Also known as: disc infection; vertebral osteomyelitis with disc involvement; infectious discospondylitis.
Discospondylitis is typically a bacterial (occasionally fungal) infection centred on the disc space and vertebral endplates. Organisms may spread haematogenously from urinary, dental, skin, or other foci, or occasionally from penetrating injury. Young to middle-aged dogs, especially larger breeds and intact males in some reports, are discussed most often; cats are uncommon patients.
Pain can be severe. Systemic signs such as fever, lethargy, and inappetence may accompany spinal hyperaesthesia. Neurological deficits appear if infection destabilises the spine or extends to the cord. Diagnosis involves imaging (radiographs, CT, MRI) and identifying the organism when possible (blood, urine, or disc-space sampling).
Antimicrobial therapy directed by culture when available, pain control, and rest are primary. Rehabilitation is supportive and carefully timed — aggressive spinal loading is inappropriate during active infection and instability. Once pain and infection are controlled, graded rehab restores mobility and addresses disuse atrophy.
Common signs to watch for
Signs vary by severity and by whether your pet is a dog or cat. Owners of dogs and cats often notice:
- Focal or diffuse spinal pain; yelping when rising or being lifted
- Stiff, stilted gait; reluctance to jump or climb
- Fever, lethargy, reduced appetite
- Progressive weakness or ataxia if the cord or nerve roots are affected
- Possible history of urinary tract infection or other infection sites
- Pain out of proportion to mild radiographic change early in disease (imaging evolves)
Causes & contributing factors
- Haematogenous bacterial spread to the disc–endplate complex
- Fungal infection in some geographic or immunocompromised contexts
- Ascending urinary tract infection as a common concurrent finding to investigate
- Penetrating wounds or migrating foreign material (less common)
- Immunosuppression or concurrent illness increasing susceptibility
How veterinary rehabilitation helps
During active infection, the priority is veterinary antimicrobial care and controlled activity. Rehab input may focus on comfortable positioning, gentle range of motion of distant joints, and preventing recumbency complications if the pet is very painful.
As infection responds and the spine is deemed stable, therapists introduce gradual strengthening and conditioning, addressing muscle loss from enforced rest.
Modalities that increase local circulation or load the spine are used only with veterinary clearance. Communication between rehab and the primary clinician is essential.
Rehabilitation plans at RehabVet are individualised after a veterinary assessment. We coordinate with your primary vet when imaging, medication, or surgery is part of the overall plan.
Modalities & services commonly used at RehabVet
Depending on your pet’s examination findings, comfort, and goals, a plan may include one or more of the following:
Expected rehabilitation goals
Goals are set for the individual patient. Typical aims may include (not guarantees — outcomes vary):
- Support comfort while infection is treated
- Prevent secondary stiffness and muscle wasting from rest
- Restore safe mobility after veterinary clearance
- Rebuild core and limb strength without stressing healing vertebrae
- Educate owners on activity restriction during treatment
We do not publish invented success percentages. Progress is tracked clinically (gait, strength, range of motion, pain behaviours, and home function) and plans are adjusted over time.
When to seek veterinary care
- Severe spinal pain, fever, or reluctance to walk — prompt veterinary care
- Neurological weakness or collapse — urgent assessment
- Known urinary infection with new back pain
- Worsening pain despite antibiotics — recheck imaging and culture strategy
- Is discospondylitis contagious to other pets or people?
It is not spread like a simple cold between pets. The concern is the pet’s own infection source. Good hygiene around urine and wounds is sensible. Discuss zoonotic aspects of specific organisms with your veterinarian if an unusual pathogen is cultured.
- How long are antibiotics needed?
Treatment courses are often prolonged and guided by clinical response and follow-up imaging — your veterinarian sets the protocol. Do not stop antimicrobials early because the pet “looks better.”
- Can we start hydrotherapy right away?
Usually not during painful, unstable, or early infectious phases. Hydrotherapy may be introduced later for conditioning once infection control and spinal stability are confirmed by your vet.
Related reading & patient stories
Book a rehabilitation assessment
If your pet has been diagnosed with Discospondylitis, or you are noticing mobility changes, our team can assess and design a multimodal rehab plan.
Educational content only — not a diagnosis. For emergencies, contact your nearest veterinary hospital.