Introduction:
Osteoarthritis (OA) is a joint disease involving cartilage degradation. Risk factors for developing osteoarthritis include joint injury, misaligned joints, trauma/injury, obesity, aging, and genetics.
This lesson dives into canine osteoarthritis, including symptoms, diagnosis, multi-modal pain management, and suggested therapies.
Contents:
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What is Canine Osteoarthritis?
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Recognizing the Signs
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Getting an Accurate Diagnosis
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Why Prompt Pain Management Is Essential
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Multi-Modal Management
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Weight Management
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Therapeutic Exercise
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Canine Massage Therapy
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Conclusion
What Is Canine Osteoarthritis?
Osteoarthritis (OA) is a progressive, degenerative joint disease involving:
- Cartilage breakdown
- Bone remodeling
- Synovial inflammation
- Chronic pain and reduced function
OA is very common yet very under-recognized. Prevalence estimates suggest up to 20% of adult dogs and 80% of senior dogs show signs of OA. It is not just a “wear and tear” disease; it’s an inflammatory condition that affects the dog physically, behaviorally, and emotionally.
Risk factors include age, breed, obesity, joint incongruity, trauma, and developmental disorders such as hip or elbow dysplasia.
OA cannot be cured – but it can be managed. Early, consistent intervention improves long-term outcomes.
Recognizing the Signs
Dogs are remarkably skilled at masking pain, a survival trait inherited from their ancestors. As a result, the early signs of osteoarthritis (OA) in dogs are often subtle and frequently mistaken for normal aging or changes in behavior. Recognizing these early indicators is critical for timely diagnosis and management.
Behavioral Changes:
Pain can significantly impact a dog’s emotional state and behavior.
Common indicators include:
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Sudden onset of reactivity, anxiety, or withdrawal
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Increased vocalization such as whining, barking, or howling
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Changes in appetite or drinking habits, particularly during flare-ups
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Avoidance of touch or guarding certain areas of the body
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Increased sleep or lethargy
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Increased clinginess or, conversely, reduced social interaction
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Licking or chewing joints or feet, often targeting painful areas
Postural Changes:
Pain and joint dysfunction can lead to altered body mechanics.
Common indicators include:
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Kyphosis (arched spine) or lordosis (sunken spine), particularly in response to lumbar or pelvic limb pain
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Low tail carriage
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Uneven weight shifting, often offloading painful limbs
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Visible joint misalignment or abnormal limb posture
Movement Changes:
Musculoskeletal discomfort commonly affects a dog’s ability or willingness to move.
Common indicators include:
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Limping, skipping, or intermittent non weight bearing
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Tripping, stumbling, or dragging paws
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Reluctance to rise, jump, walk, or transition between positions
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Slowed movement or general hesitancy
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Stiffness, particularly after rest or in cold weather
Other Physical Signs:
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Muscle atrophy, especially around affected joints
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Coat changes (new patterns, dryness, excessive shedding)
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Joint swelling, warmth, or thickening
Many dogs experience flare-ups (acute increases in pain) following overactivity or weather changes. Owners often recognize arthritis only during these episodes.
Getting an Accurate Diagnosis
A definitive diagnosis of canine osteoarthritis requires a comprehensive clinical assessment. Many conditions – including neurological disorders, soft tissue injuries, and even gastrointestinal discomfort – can mimic musculoskeletal pain, so differential diagnosis is critical.
Diagnosis typically includes:
- Detailed clinical history
- Gait & Postural Assessment
- Orthopedic Examination
- Pain responses to palpation or manipulation
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Crepitus (crackling) in affected joints
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Reduced joint range of motion or stiffness
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Joint instability or thickening
- Diagnostic Imaging: Radiographs (X-rays)
Radiography remains the most commonly used imaging modality for confirming OA, though it detects structural changes rather than pain itself.
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Osteophyte formation (bone spurs)
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Subchondral bone sclerosis (increased bone density below cartilage)
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Joint effusion or capsular distension
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- Pain Scoring Tools:
- CBPI (Canine Brief Pain Inventory)
- LOAD (Liverpool Osteoarthritis in Dogs)
- Helsinki Chronic Pain Index
- Zoetis Dog Osteoarthritis Checklist
Why Prompt Pain Management Is Essential
Chronic pain in dogs is not merely a symptom of joint disease – it is a disease state in itself. When pain is unmanaged or prolonged, the nervous system undergoes a process known as central sensitization, in which it becomes hyper-responsive to both noxious and non-noxious stimuli. This neuroplastic change leads to exaggerated pain perception (hyperalgesia) and pain in response to normally non-painful stimuli.
Untreated Pain:
- Dogs may offload painful limbs or adopt protective postures, which can lead to compensatory musculoskeletal strain and secondary injuries
- Affects cardiovascular, immune, and endocrine function
- Increases stress, anxiety, and behavior problems
Unmanaged pain not only accelerates joint degeneration, it also unfortunately lowers overall quality of life.
Multi-Modal Management
Supporting dogs with osteoarthritis often involves a multimodal management plan, as emphasized by organizations such as the World Small Animal Veterinary Association (WSAVA), American Animal Hospital Association (AAHA), Canine Arthritis Management (CAM), and Zero Pain Philosophy.
This approach typically combines various strategies aimed at reducing pain, supporting joint health, and improving overall quality of life.
I am not a veterinarian or pharmacist. If you’d like to learn more about medications and supplements for canine osteoarthritis, I highly recommend this video resource.
Weight Management
Achieving and maintaining a lean body condition not only reduces mechanical stress on joints, but also lowers systemic inflammation, which plays a key role in the progression of OA.
- Aim for a Body Condition Score of 4–5/9 in most dogs
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Excess fat releases pro-inflammatory cytokines and adipokines which contribute to systemic inflammation and can worsen arthritis symptoms.
Therapeutic Exercise:
Therapeutic exercise is a cornerstone of multimodal osteoarthritis care. Unlike general activity, it is targeted, purposeful, and tailored to a dog’s specific stage of disease, physical ability, and pain level. Evidence consistently shows that low-impact, structured exercise improves joint function, muscle strength, balance, and quality of life – and may help slow disease progression.
The benefits of targeted exercise include:
Preserves Joint Range of Motion
Arthritic joints tend to become stiff due to disuse, inflammation, and surrounding soft tissue contraction.
Therapeutic exercises:
- Gently mobilize joints
- Improve synovial fluid circulation (natural joint lubrication)
- Prevent loss of motion that can lead to permanent functional decline
Regular motion is “lotion” for arthritic joints.
Builds and Maintains Muscle Strength
Muscle loss is a common consequence of pain and reduced activity. Unfortunately, weaker muscles further destabilize the joint and can increase pain.
Strength-focused therapeutic exercise:
- Supports the affected joint
- Offloads stressed structures (like ligaments and cartilage)
- Enhances overall balance and weight distribution
Stronger muscles = less joint strain and better shock absorption.
Improves Proprioception and Coordination
Dogs with OA commonly develop compensatory gait patterns, joint instability, and poor neuromuscular control.
Exercises that challenge balance and coordination:
- Help to retrain the nervous system
- Improve body awareness and proprioception
- May help to reduce stumbling and slipping, lowering the risk of falls and injury
Interrupts the Pain-Inactivity Cycle
Pain leads to inactivity → inactivity leads to stiffness and weakness → stiffness increases pain.
Therapeutic exercise breaks this cycle by:
- Encouraging safe, structured movement
- Reducing muscle stiffness
- Promoting endorphin release (natural painkillers)
Exercise, when done appropriately, becomes a form of pain management.
Improves Joint Alignment
When a dog is in pain, they often offload weight from the affected joint, which can cause them to overuse certain muscles while underusing others. This uneven muscle tone can pull joints out of neutral alignment.
Therapeutic exercise aids in:
- Reducing muscular imbalances
- Restoring symmetrical muscle engagement
- Encouraging more equal limb loading
- Reducing postural compensations
- Retraining motor patterns & neuromuscular control
Supports Mental and Emotional Wellbeing
Dogs with arthritis often experience frustration or depression due to reduced freedom and altered routines.
Therapeutic activities:
- Provide enrichment
- Restore confidence in movement
- Strengthen the dog–handler bond through positive interaction
Unlike general exercise, therapeutic exercise is intentionally structured and adapted to each dog’s abilities, limitations, and stage of arthritis. While rest may seem like the intuitive choice for a dog in pain, controlled, targeted movement is essential for maintaining function, alleviating discomfort, and slowing disease progression.
What to Avoid
- Overexertion: Can trigger flare-ups or increase inflammation
- Inactivity: Leads to muscle wasting and joint stiffness
- Delaying treatment: Early intervention can slow progression
- Fetch, Sit Pretty, Rollover Trick
Remember: Dogs live in the moment. Just because they’re willing to play doesn’t mean they should. Post-activity soreness is a sign the load was too high.
Canine Massage Therapy
Massage is a gentle, non-invasive therapy that can significantly improve comfort, mobility, and quality of life for dogs with arthritis. While it does not cure the disease, it plays an important role in multi-modal management by addressing both primary and secondary effects of chronic joint pain.
The benefits of canine massage therapy include:
Pain Relief Through Neuromodulation
Massage stimulates the nervous system and helps block pain signals via the “gate control theory” of pain. Gentle pressure and rhythmic movement can reduce the brain’s perception of pain, leading to natural pain relief.
Evidence shows that tactile stimulation can lower sympathetic nervous system activity and increase the release of endorphins – natural pain-relieving chemicals.
Improved Circulation
Massage enhances blood flow to muscles, joints, and connective tissues.
Increased circulation:
- Delivers more oxygen and nutrients to tissues
- Promotes removal of metabolic waste and inflammatory byproducts
- Supports tissue healing and overall joint health
Reduction of Muscle Tension and Spasms
Dogs with arthritis often develop muscle tightness, trigger points, and spasms due to compensatory movement patterns.
Massage helps:
- Relieve tension in overused or protective muscles
- Reduce the likelihood of secondary musculoskeletal injuries
- Restore balance in posture and movement
Enhancement of Lymphatic Drainage
Massage supports lymphatic flow.
Which can help:
- Reduce localized swelling and joint effusion
- Lower inflammation in surrounding tissues
- Support immune system function
Improved Flexibility and Joint Mobility
Chronic joint pain often leads to reflexive muscle guarding, a neuromuscular defense mechanism characterized by sustained muscle contraction to limit movement and protect the joint.
However, when prolonged, this guarding can become maladaptive – contributing to :
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Joint stiffness
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Muscle imbalances
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Reduced range of motion
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Altered gait and compensatory strain
- Chronic discomfort
Massage has been shown to:
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Downregulate spinal reflex excitability, particularly the muscle spindle reflex arc, thereby reducing involuntary guarding
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As neuromuscular tone normalizes, both passive and active range of motion can improve without triggering discomfort or further guarding responses.
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Aid in reducing fascial adhesions and releasing hypertonic muscles that cross affected joints.
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This biomechanical decompression contributes to improved joint mobility and supports the restoration of more normal, coordinated movement patterns.
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Conclusion:
Canine arthritis is a complex, chronic condition that requires an individualized, multimodal and evidence-based approach. With appropriate care – medical, physical, environmental, and nutritional – dogs with arthritis can live happy, active lives.
Disclaimer: This information is provided for educational purposes only and is not intended to diagnose or treat medical conditions. Always consult a licensed veterinarian before starting, stopping, or changing any treatment or supplement regimen for your dog.
Optional Further Reading:
Anderson, K. L., Zulch, H., O’Neill, D. G., Meeson, R. L., & Collins, L. M. (2020). Risk factors for canine osteoarthritis and its predisposing arthropathies: A systematic review. Frontiers in Veterinary Science, 7, 220. https://doi.org/10.3389/fvets.
Woolf CJ. (2011). Central sensitization: implications for the diagnosis and treatment of pain. Pain. 152(3 Suppl):S2-15. doi: 10.1016/j.pain.2010.09.030
Catarino, J., Carvalho, P., Santos, S., Martins, Â., & Requicha, J. (2020). Treatment of canine osteoarthritis with allogeneic platelet-rich plasma: Review of five cases. Open Veterinary Journal, 10(2), 226–231. https://doi.org/10.4314/ovj.
Marshall, W. G., Hazewinkel, H. A., Mullen, D., De Meyer, G., Baert, K., & Carmichael, S. (2010). The effect of weight loss on lameness in obese dogs with osteoarthritis. Veterinary Research Communications, 34(3), 241–253. https://doi.org/10.1007/
Ellulu, M. S., Patimah, I., Khaza’ai, H., Rahmat, A., & Abed, Y. (2017). Obesity and inflammation: The linking mechanism and the complications. Archives of Medical Science, 13(4), 851–863. https://doi.org/10.5114/aoms.
Drum, M., McKay, E., Levine, D., & Marcellin-Little, D. J. (2021). The role of strengthening in the management of canine osteoarthritis. Advances in Small Animal Care, 2, 31–38.
Mathews KA, Kronen PW, Lascelles D, et al. (2014). Guidelines for recognition, assessment and treatment of pain. J Small Anim Pract. 55:E10–E68. doi: 10.1111/jsap.12200
Field, T., Hernandez-Reif, M., Diego, M., Schanberg, S., & Kuhn, C. (2005). Cortisol decreases and serotonin and dopamine increase following massage therapy. International Journal of Neuroscience, 115(10), 1397–1413. https://doi.org/10.1080/
Weerapong, P., Hume, P. A., & Kolt, G. S. (2005). The mechanisms of massage and effects on performance, muscle recovery and injury prevention. Sports Medicine, 35(3), 235–256. https://doi.org/10.2165/
Leu, A., Husmann, M., Held, T., Frisullo, R., Hoffmann, U., & Franzeck, U. (2001). Measurement of the lymphatic clearance of the human skin using a fluorescent tracer. Journal of Vascular Research, 38(6), 423–431. https://doi.org/10.1159/
Behm, D. G., Peach, A., Maddigan, M., Aboodarda, S. J., DiSanto, M. C., Button, D. C., & Maffiuletti, N. A. (2013). Massage and stretching reduce spinal reflex excitability without affecting twitch contractile properties. Journal of Electromyography and Kinesiology, 23(5), 1215–1221. https://doi.org/10.1016/j.
Gifford, L. (1998). Pain, the tissues and the nervous system. Physiotherapy, 84(1), 27–36. https://doi.org/10.1016/S0031-
Hodges, P. W., & Tucker, K. (2011). Moving differently in pain: A new theory to explain the adaptation to pain. Pain, 152(3 Suppl), S90–S98. https://doi.org/10.1016/j.