As a loving pet owner, you cherish seeing your dog happy, playful, and full of life. When you begin noticing subtle changes—slower greetings at the door, hesitation before jumping on favorite furniture, or morning stiffness after a long rest—these moments can feel concerning. While it's natural to dismiss these signs as simply "getting old," they often represent the early stages of osteoarthritis .
Osteoarthritis (OA) is a widespread musculoskeletal disorder that affects your dog's joints, directly impacting their comfort, mobility, and overall quality of life. When you understand OA and work closely with your veterinarian, you can help your furry companion maintain comfort and activity throughout their life.
Summary
What is canine osteoarthritis?
Think of your dog's healthy joint as a well-oiled machine, where smooth cartilage covers the bone ends, allowing effortless movement during play and daily activities. Osteoarthritis is a degenerative joint disease where this protective cartilage gradually breaks down over time. This breakdown leads to pain, inflammation, and structural changes within the joint, making movement increasingly difficult and uncomfortable for your pet. While OA can affect any joint in your dog's body, you'll most commonly see it developing in the hips, elbows, knees (stifles), and shoulders.
OA is both a permanent and progressive condition , which means it tends to worsen over time without intervention. However, when you implement proactive and comprehensive management strategies, you can slow this progression and significantly improve your dog's comfort and mobility.
Recognizing the early warning signs
Behavioral and physical changes to monitor
Stiffness: watch for stiffness in your dog's movement, especially after they've been resting or when they first wake up in the morning.
Difficulty with activities: notice if your dog shows hesitation or struggles with previously easy tasks like climbing stairs, jumping into cars or onto furniture, getting up from a lying position, or sitting down comfortably.
Reduced activity or exercise intolerance: observe whether your dog shows less desire to play, slows down during regular walks, or tires more quickly than they used to during activities.
Limping or lameness: watch for your dog favoring one limb over others, though the severity of this symptom can vary significantly.
Changes in behavior: remember that pain often manifests beyond obvious limping . Watch for increased irritability in your dog, reluctance to be touched near affected joints, social withdrawal, or restlessness because they cannot get comfortable.
Staying observant is absolutely key to early detection. Consider keeping a simple journal or taking short videos of your dog's movement patterns to share with your veterinarian and track changes over time.

Getting a professional diagnosis
The veterinary examination process
The diagnostic process begins with a thorough conversation about your specific observations of your dog's behavior and mobility patterns at home. You should be completely open about everything you've noticed, no matter how minor the changes may seem. Your veterinarian will then perform a comprehensive physical examination, including a detailed orthopedic assessment and visual gait analysis to evaluate any lameness and assess how your dog distributes their weight.
Your veterinarian may use standardized owner-reported questionnaires to help quantify your dog's pain levels and assess their overall quality of life. While these questionnaires are subjective in nature, they serve as useful tools when combined with other diagnostic methods. Advanced imaging, typically X-rays (radiographs) , allows your veterinarian to visualize the bones and joints directly and identify structural changes consistent with osteoarthritis.
When your veterinarian combines your detailed observations, physical examination findings, gait analysis results, and X-ray imaging, they can make an accurate diagnosis of OA. Early identification of this condition allows for prompt intervention, which significantly improves long-term outcomes for your dog.

Creating an effective treatment plan
Weight management: your most powerful tool
Weight management is arguably the most impactful intervention you can implement for your osteoarthritic dog. Excess body weight places significant stress on your dog's already compromised joints, worsening their pain and accelerating the disease's progression . Think of this like your dog carrying a heavy backpack constantly—it creates continuous strain on their knees and hips. For dogs living with OA, even slight excess weight can significantly impact their daily comfort levels.
When your dog loses even small amounts of weight, this can lead to significant improvements in lameness and overall comfort . Your veterinarian can help determine your dog's ideal body weight and create safe, effective weight loss plans specifically for them. This process often involves switching to specially formulated weight management foods and implementing careful portion control measures. Your compliance with the feeding plan becomes critical for success, typically aiming for a loss of 0.5% to 1% of your dog's body weight per week .
Nutritional support and supplements
Specific therapeutic diets and joint supplements can provide beneficial active ingredients that support your dog's joint health and help manage inflammation throughout their body.
Omega-3 fatty acids: strong scientific evidence supports using Omega-3 fatty acids, particularly EPA and DHA found in high-quality fish oil, for managing the pain and inflammation associated with your dog's OA. These essential fatty acids work by reducing the production of inflammatory molecules within your dog's body.
Glucosamine and chondroitin: these represent common joint supplement ingredients, though they come with varying levels of scientific support for their effectiveness. Some dogs will show noticeable improvement with these supplements, while others may not respond as favorably.
Other ingredients: newer supplement options like Undenatured Type-II Collagen (UC-II) are showing promise in research studies as another type of supplement that may support your dog's joint health.
The pet supplement industry remains largely unregulated , which means quality and actual ingredient content can vary significantly between different products. You should discuss specific diets or supplements with your veterinarian to ensure you choose appropriate, high-quality products and provide the correct dosing for your dog's specific needs.

Pain management with medications
Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) are commonly prescribed by veterinarians and prove very effective for reducing the pain and inflammation associated with your dog's OA by specifically targeting the inflammatory processes within affected joints.
These are prescription medications that require direct guidance from your veterinarian . You must administer them exactly as your veterinarian prescribes. While NSAIDs are generally safe when you use them appropriately, potential side effects can include gastrointestinal irritation or impacts on your dog's kidneys or liver with long-term use. Your veterinarian will carefully consider your dog's overall health status before prescribing NSAIDs and may recommend regular monitoring to ensure your dog tolerates them well. NSAIDs often work most effectively alongside other management strategies in your dog's treatment plan.
Exercise and physical therapy
Appropriate exercise plays a vital role in managing your dog's OA effectively. While you might think painful joints need complete rest, controlled movement actually provides significant benefits for your dog. Gentle, controlled exercise helps maintain muscle strength around affected joints and keeps those joints flexible and functional. You need to find the right balance for your dog— short, frequent walks on level ground often prove better than single long, strenuous hikes. You should pay close attention to your dog's behavioral cues and avoid over-exertion, especially on days when they seem more stiff or uncomfortable.
For some dogs, veterinary physical rehabilitation can provide tremendous value as part of their overall treatment plan. Certified canine rehabilitation practitioners can develop specific exercises, stretches, and therapeutic treatments like hydrotherapy or therapeutic massage to improve your dog's strength, flexibility, and balance.
Working with your veterinary team
Building effective communication and compliance
Clear, open communication with your veterinary team is absolutely essential for your dog's success. You should share all your observations with the team, ask questions about the diagnosis, treatment plans, medications, supplements, and exercise recommendations. Make sure you understand why each component of the plan is important and how to implement it correctly in your daily routine.
Adhering to your veterinarian's tailored management plan is crucial for achieving the best outcomes for your dog. This adherence includes following recommended dietary changes, giving medications and supplements exactly on schedule, and following exercise guidelines consistently. OA is a chronic condition that requires ongoing, long-term care and attention. Regular veterinary check-ups allow your team to monitor your dog's progress, assess their comfort levels, and make necessary adjustments to the management plan as your dog's condition evolves.

Your dog's future: maintaining quality of life
Canine osteoarthritis is a common, progressive condition that can significantly impact your dog's daily comfort and mobility. While it can be disheartening to see your beloved companion affected by this condition, you absolutely can make a real difference in their quality of life through dedicated care.
When you understand OA and recognize the early signs, you can take proactive steps to help your dog. Partnering closely with your veterinarian allows you to develop comprehensive, tailored management plans that address your dog's specific needs. Maintaining your dog's healthy weight represents one of the most impactful interventions you can implement . Supporting their joint health with appropriate nutrition and supplements, utilizing pain relief medications when necessary, and ensuring they receive controlled, appropriate exercise are all vital components for keeping your dog comfortable and mobile.
You should never dismiss subtle changes as simply "old age." Stay observant of your dog's behavior, talk to your veterinarian about any concerns you notice, and work together to create effective management plans. With proper care and attention, you can help your furry friend continue enjoying an active, fulfilling life.
The information in this article is based on the following scientific publications:
- Barbeau-Grégoire, M., Otis, C., Cournoyer, A., Moreau, M., Lussier, B. and Troncy, E. (2022). A 2022 Systematic Review and Meta-Analysis of Enriched Therapeutic Diets and Nutraceuticals in Canine and Feline Osteoarthritis . International Journal of Molecular Sciences, 23, 10384.
- Bland, S.D. (2015). Canine osteoarthritis and treatments: a review . Veterinary Science Development, 5:5931.
- Clark, N. and Comerford, E. (2023). An update on mobility assessment of dogs with musculoskeletal disease . Journal of Small Animal Practice.
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