Rheumatoid Arthritis in Dogs

Rheumatoid arthritis is a disorder where the body’s immune system mistakenly attacks the joints, leading to inflammation, pain, and potential joint damage
Condition Snapshot
  • Name:

Rheumatoid Arthritis

  • Other Name(s):

Canine Rheumatoid Arthritis, Autoimmune Arthritis in Dogs
  • Acronym(s):

RA
  • Severity:

/5
  • Genetic:

Yes
  • Idiopathic:

Yes
  • Predisposed Breeds:

Yes
  • Onset Age:

Middle to Older

Overview

Rheumatoid arthritis, also known as canine rheumatoid arthritis or autoimmune arthritis in dogs, is an autoimmune disorder. In this condition, a dog’s immune system mistakenly attacks its joints. This causes inflammation, pain, and potential joint damage. Although similar to osteoarthritis, rheumatoid arthritis is less common in dogs. It affects a small percentage of the canine population with the severity varying. Some dogs may experience mild symptoms, while others suffer from severe pain and limited mobility.

Causes

Rheumatoid arthritis is primarily an autoimmune response. This means the immune system mistakenly targets the joints, causing damage. Genetic factors and environmental influences may contribute to this response. Infections may also trigger the body’s immune system to attack the joints.

Secondary causes include bacterial or viral infections that can set off the immune response. Stress and trauma to the joints can exacerbate the condition, leading to increased inflammation and pain. Previous joint injuries can also weaken the joint structure, making them more susceptible.

Other factors contributing to rheumatoid arthritis may include genetic predisposition. Some dogs are naturally more prone to developing the condition. This predisposition can be exacerbated by lifestyle factors, including diet and exercise.

Predisposed Breeds

Breeds predisposed to rheumatoid arthritis include:

Symptoms

Symptoms of rheumatoid arthritis often start with joint pain and swelling. This can lead to stiffness and lameness, especially noticeable in the morning or after resting. Dogs may show reluctance to move or play as they normally would.

Secondary symptoms can include fever and lethargy, as systemic inflammation affects their overall health. These dogs may also lose their appetite, leading to weight loss and muscle wasting.

Other symptoms to watch for include changes in behavior because of chronic pain. Dogs may become more irritable or withdrawn. Monitoring these symptoms is important for early intervention and management.

Rheumatoid arthritis symptoms include:

  • Joint pain
  • Swelling
  • Stiffness
  • Lameness
  • Fever
  • Lethargy
  • Loss of appetite

Diagnosis

Diagnosing rheumatoid arthritis involves a thorough clinical examination by a veterinarian. They will assess joint movement and look for signs of inflammation. Blood tests are essential to check for specific antibodies that indicate RA.

X-rays help visualize joint damage, while joint fluid analysis confirms inflammation. These tests distinguish rheumatoid arthritis from other conditions, like osteoarthritis, systemic lupus erythematosus, and immune-mediated polyarthritis.

Correct diagnosis is key to effective treatment. Identifying rheumatoid arthritis early can help slow its progression and improve a dog’s quality of life considerably.

Treatment

Treatment for rheumatoid arthritis often includes anti-inflammatory medications to reduce pain and swelling. Immune-suppressing drugs may be prescribed to prevent further immune attacks on the joints. Pain relief helps manage discomfort and maintain mobility.

Sometimes, therapy or surgery may be necessary to preserve joint function. Physical therapy can improve flexibility and strengthen muscles around the joints. Surgery may be considered where joint damage is extensive.

Tip: Consult your veterinarian before starting any treatment regimen to ensure it aligns with your dog’s specific rheumatoid arthritis needs.

Management

Managing rheumatoid arthritis involves a holistic approach. Regular medication and therapy are important to control symptoms and slow disease progression. Weight management through diet and exercise is equally important in reducing stress on the joints.

Consistent check-ups with the veterinarian help monitor the condition and adjust treatments as needed. A balanced lifestyle, including gentle exercises, can maintain joint function and enhance the dog’s quality of life.

Tip: Keep a detailed record of your dog’s rheumatoid arthritis symptoms and treatments to share with your veterinary during appointments.

Prevention

Preventing rheumatoid arthritis is challenging, since the exact cause is unknown. However, maintaining a healthy weight and providing a balanced diet can support overall health. Regular veterinary check-ups can detect early signs and prevent complications.

While hereditary factors cannot be changed, early detection and intervention can make a significant difference. Testing for genetic predispositions may help identify at-risk dogs and guide preventive measures.

Tip: Encourage regular, moderate exercise to keep your dog’s joints healthy, avoiding overexertion.
Sources
  • Canine Immune-Mediated Polyarthritis – WSAVA 2003 Congress – VIN: https://www.vin.com/apputil/content/defaultadv1.aspx?meta=Generic&pId=8768&id=3850071. Accessed November 13, 2023.
  • Immune-mediated Arthritis in Dogs and Cats – Musculoskeletal System – MSD Veterinary Manual: https://www.msdvetmanual.com/musculoskeletal-system/arthropathies-and-related-disorders-in-small-animals/immune-mediated-arthritis-in-dogs-and-cats. Accessed November 13, 2023.
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