TL;DR: An arched back in dogs (kyphosis) is a sign of severe pain typically caused by spinal issues like IVDD or abdominal distress and requires urgent veterinary assessment to prevent permanent damage.
What causes a dog to arch their back and walk stiffly?
- An arched back, scientifically known as kyphosis, combined with a stiff gait is a clear signal that your dog is in significant pain.
- This posture is a protective mechanism where the dog attempts to "splint" or stabilize a painful area.
- While it can be related to severe abdominal pain (such as pancreatitis), it most commonly indicates a spinal issue where the dog is trying to prevent movement of the vertebrae.
Is an arched back in dogs considered a veterinary emergency?
- Urgency Level: High. This should be treated as a potential emergency, especially if the stiff walking progresses to weakness, wobbliness, or dragging of the paws.
- These are hallmark signs of Intervertebral Disc Disease (IVDD) or a spinal cord injury.
- If your dog cannot stand or appears to be in extreme distress, seek emergency veterinary care immediately.
- Early intervention is critical to preventing permanent neurological damage or paralysis.
How can providing a photo or video help a veterinarian triage my dog's condition?
- Providing a clear photo of the arched posture and a short video of your dog walking can be life-saving for triage via clinic calls or telehealth services.
- A video allows a veterinary professional to distinguish between an orthopedic limp, abdominal guarding, and neurological "ataxia" (uncoordinated movement).
- This visual information helps determine exactly how quickly your dog needs to be seen and prepares the medical team for your arrival.
Clinical Context (Merck Veterinary Manual)
Arching of the back and stiff walking in dogs can be associated with conditions such as Neospora caninum or Toxoplasma gondii infections, particularly in puppies, leading to paraparesis and a "bunny-hopping" gait. As the condition progresses, pelvic limbs develop extensor rigidity and muscle atrophy. Serum creatine kinase (CK) concentration is often elevated. Sensory ganglioneuritis, though primarily causing ataxia, dysphagia, and regurgitation, may also involve hyperesthesia.
Chapter: Cardiology, Neurology
Source: The Merck Veterinary Manual, 11th Edition (Page 1245)