TL;DR: A dog refusing to put weight on its leg indicates a serious injury requiring veterinary attention within 12 to 24 hours, though certain symptoms like heavy bleeding or protruding bone require immediate emergency care.
What does it mean if my dog is non-weight bearing on their hind leg?
When a dog is non-weight bearing on their right hind leg, it means they are holding the limb up entirely and refusing to touch it to the ground while standing or walking. This behavior is typically a sign of significant pain, discomfort, or a mechanical inability to use the limb, often involving the bones, joints, or ligaments.
Is it an emergency if my dog will not put weight on their leg?
The urgency level for a non-weight bearing limb is categorized as Medium. While this is rarely immediately life-threatening, it indicates a serious injury that requires veterinary attention within 12 to 24 hours. Seek immediate emergency care if you notice:
- Protruding bone
- Heavy bleeding
- Extreme lethargy
- An inability to move other limbs
How can a photo or video help a vet triage my dog's lameness?
Providing a clear photo or a short video of your dog can be a vital tool for a triage professional:
- A photo of the leg from the side or back helps identify visible swelling, bruising, or an abnormal angle (deformity).
- A video of your dog attempting to walk helps the vet observe their gait and determine which joint is most affected.
- These visuals ensure your pet receives the correct priority level for an appointment.
Clinical Context (Merck Veterinary Manual)
Pain-related lameness can be classified as weight-bearing or non-weight-bearing. For hindlimb lameness, the head is dropped during weight-bearing on the affected limb. Limbs should be assessed from distal to proximal, and bones, joints, and soft tissue should be palpated for abnormalities such as swelling, pain, instability, crepitation, reduced range of motion, and muscle atrophy. Radiography is a helpful imaging procedure to diagnose lameness.
Chapter: Neurology, Orthopedics
Source: The Merck Veterinary Manual, 11th Edition (Page 1096)