TL;DR: Weakness or falling on stairs can indicate serious orthopedic or neurological issues and requires veterinary evaluation within 24 to 48 hours, or immediately if the onset is sudden.
What causes my dog to experience weakness or falls while using the stairs?
- Weakness leading to falls on stairs occurs when a dog lacks the muscular strength or neurological coordination to navigate elevation.
- Common signs include hind-end swaying, knuckling of the paws, or a complete collapse of the limbs.
- Potential causes range from orthopedic issues like severe arthritis or hip dysplasia to neurological conditions such as IVDD or vestibular disease.
Is it an emergency if my dog is falling on the stairs?
- The urgency level for this condition is Medium, as falling poses a significant risk for secondary traumatic injuries like fractures or head trauma.
- Seek immediate veterinary care if the weakness is sudden, your dog is unable to stand, or they are in visible pain.
- Schedule an appointment within 24 to 48 hours if the weakness has been gradual or intermittent.
Why is it helpful to provide my vet with a photo or video of my dog's weakness?
- Dogs often experience an adrenaline spike at the clinic that can mask signs of weakness or pain.
- A video captured in their natural environment allows the vet to observe specific gait abnormalities or muscle wasting.
- Visual evidence of neurological deficits helps your veterinarian reach a faster and more accurate diagnosis.
Clinical Context (Merck Veterinary Manual)
Falling down stairs due to weakness in dogs can stem from various neurological and neuromuscular disorders. Neurological causes include brain stem disorders that may result in weakness and proprioceptive gait disturbances, and spinal cord disorders that may produce weakness, motor dysfunction, or proprioceptive deficits of the limbs. Neuromuscular disorders, including diseases of the peripheral nerves, neuromuscular junction, or muscles, can also lead to weakness. Specific conditions like cervical spondylomyelopathy, spinal dysraphism, mitochondrial myopathies (resulting in exercise intolerance and collapse), nemaline rod myopathy, and central core myopathy can manifest as weakness and potential falls.
Chapter: Neurology, Neuromuscular
Source: The Merck Veterinary Manual, 11th Edition (Page 1222)