Dog Degenerative Joint Disease (Osteoarthritis) Welfare

Osteoarthritis is the most common source of chronic pain in dogs, yet it remains significantly underdiagnosed and undertreated. Recognising and managing this condition is essential for canine quality of life.

Key Facts

Canine osteoarthritis (OA) affects an estimated 20% of dogs over 1 year and up to 80% of dogs over 8 years; it is the most prevalent cause of chronic pain in companion dogs
OA is characterised by progressive cartilage degradation, subchondral bone changes, synovial inflammation, and osteophyte (bone spur) formation in affected joints
The hips, elbows, stifles (knees), and intervertebral joints are most commonly affected; large breeds and breeds with developmental orthopaedic diseases (HD, ED) are at highest risk
Dogs do not limp or cry from arthritis pain in the way humans do — instead they show subtle behaviour changes: reduced activity, reluctance to jump, difficulty rising, behaviour changes, and reduced play
Owner and veterinary underrecognition of OA pain is well documented — pain is often normalised as "slowing down" with age and not investigated or treated
Multimodal pain management typically involves NSAIDs (the cornerstone), joint supplements, physiotherapy/rehabilitation, weight management, and increasingly monoclonal antibody treatments targeting nerve growth factor (frunevetmab)
Environmental modifications — ramps, non-slip flooring, raised food bowls, orthopaedic bedding — can significantly reduce pain and improve function
Excess body weight is a major modifiable risk factor — obese dogs develop OA earlier and experience more severe symptoms; weight reduction alone produces measurable pain reduction

Welfare Considerations

Chronic OA pain profoundly affects canine quality of life in ways that are often invisible to owners who are not trained to recognise subtle pain signals. Dogs in chronic pain may stop greeting owners enthusiastically, sleep more, become irritable (sometimes labelled as "grumpy old dog syndrome"), and withdraw from family activities — all signs of ongoing suffering rather than normal ageing. The undertreatment of OA pain is a major welfare failure: studies show that the majority of arthritic dogs receive no pain management despite available effective treatments. The welfare gain from appropriate multimodal OA management is substantial — owners who begin treatment often report seeing their dog "become themselves again" as chronic pain is relieved.

What You Can Do

Complete a validated canine pain questionnaire (such as the Helsinki Chronic Pain Index or Liverpool OA in Dogs [LOAD] scale) if your dog is showing any subtle behaviour changes
Have dogs over 7 years assessed for OA at their annual health check — ask specifically about joint health
Maintain your dog at a healthy body weight throughout life — weight management is the most impactful preventive measure
If OA is diagnosed, implement a multimodal management plan including appropriate analgesia, weight management, and environmental modifications
Ask your vet about newer treatments including anti-NGF monoclonal antibodies if traditional NSAIDs are insufficient or contraindicated