Arthritis, or degenerative joint disease (DJD), is a common and often painful condition affecting companion animals, particularly as they age. It involves the inflammation and progressive degeneration of one or more joints, leading to discomfort, reduced mobility, and a decreased quality of life.

Understanding Arthritis in Pets:

In healthy joints, smooth cartilage and lubricating joint fluid allow for easy movement. With arthritis, this cartilage wears down, leading to bone-on-bone friction, inflammation, pain, and the formation of bone spurs.

Osteoarthritis is the most prevalent form, resulting from chronic wear and tear on the joints. Other less common types include rheumatoid arthritis (an autoimmune disease) and infectious arthritis. While any joint can be affected, commonly impacted areas include the hips, elbows, knees (stifles), shoulders, and spine. 

Causes and Risk Factors:

  • Aging: Natural wear and tear contribute significantly to arthritis development in older pets.
  • Genetics: Certain breeds are predisposed to joint conditions like hip and elbow dysplasia, which can lead to early-onset arthritis (e.g., large dog breeds like German Shepherds and Labradors, and certain cat breeds like Maine Coons).
  • Obesity: Excess weight places significant strain on joints, exacerbating existing arthritis and accelerating its progression.
  • Injury/Trauma: Fractures, dislocations, ligament tears (like cruciate ligament rupture), and other joint injuries can lead to secondary arthritis.
  • Developmental Abnormalities: Poor joint development can cause pain and damage from a young age.

Recognising the Signs:

Arthritis symptoms can be subtle, especially in cats, who often hide pain. Owners should look for: 

  • Limping or lameness, especially after rest or exercise.
  • Stiffness, particularly after sleeping or prolonged inactivity.
  • Reluctance to jump, climb stairs, or engage in usual activities (e.g., playing, running).
  • Difficulty getting up or lying down.
  • Changes in behavior, such as irritability, aggression when touched, or withdrawal.
  • Licking or biting at joints.
  • Decreased appetite.
  • Muscle atrophy (thinning of muscles) in affected limb.

Diagnosis:

Veterinarians typically diagnose arthritis through a thorough physical examination, including joint palpation to identify pain and swelling, and observation of the pet's gait. Diagnostic imaging, such as X-rays, CT scans, or arthroscopy, are often used to confirm the diagnosis and assess the extent of joint damage.

Management and Treatment:

While there is no cure for arthritis, a multimodal approach can significantly alleviate pain, improve mobility, and enhance the pet's quality of life. Treatment strategies include:

Weight Management: Maintaining an ideal body weight is crucial, as it reduces stress on the joints. Veterinary-prescribed diets and monitored weight loss programs are often recommended.

Medications: 

  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs): These are a cornerstone of pain management, reducing inflammation and pain. Species-specific NSAIDs are prescribed (human NSAIDs like ibuprofen or aspirin can be toxic).
  • Other Pain Relievers: Gabapentin and tramadol may be used as adjuncts to NSAIDs, particularly for neuropathic or severe pain.
  • Cartilage Protective Agents: Injections like polysulfated glycosaminoglycans (e.g., Cartrophen) can help lubricate joints and support cartilage health.
  • Nutraceuticals and Supplements: Glucosamine, chondroitin sulfate, omega-3 fatty acids (especially from fish oil), and green-lipped mussel extract are commonly used to support joint health and reduce inflammation
  • Monoclonal Antibodies (mAbs)*: Newer injectable medications (e.g., Beransa for dogs, Solensia for cats) specifically target nerve growth factor (NGF), a protein involved in pain, offering long-lasting pain relief with minimal side effects.
    *These treatments are carefully considered by our vets during an initial consultation and only recommended in the context of the individual animals' circumstances.

Physical Rehabilitation:

  • Controlled Exercise: Regular, low-impact exercise (e.g., short walks, swimming) helps maintain muscle mass, joint mobility, and overall fitness.
  • Physical Therapy: Techniques like passive range of motion exercises, therapeutic exercises, and massage can improve flexibility and muscle strength.
  • Advanced Therapies: Acupuncture, laser therapy, and shockwave therapy can provide additional pain relief and promote healing. 
  • Environmental Modifications:
    • Comfortable Bedding: Orthopedic or memory foam beds provide cushioning for painful joints.
    • Non-Slip Surfaces: Rugs or mats on slippery floors can prevent falls and reduce strain.
    • Ramps and Stairs: Ramps or pet stairs can help pets access elevated surfaces like furniture or vehicles, reducing impact on joints.
    • Elevated Food/Water Bowls: These can lessen neck and spinal strain during eating and drinking.
    • Surgery: In some severe cases or for specific underlying conditions (e.g., hip replacements for severe hip dysplasia, cruciate ligament repair), surgery may be an option to improve joint function and reduce pain.

Regular veterinary check-ups are essential for early detection and ongoing management of arthritis, allowing for a personalised treatment plan to help companion animals live more comfortably.
]