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Osteoarthritis in Dogs: Everything You Need to Know

Dr. Julie Buzby October 14, 2021 2 Comments

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Osteoarthritis in dogs can be a common affliction of our grey-muzzled companions. Integrative veterinarian Dr. Julie Buzby explains what osteoarthritis is, how it is diagnosed, and the many options available for helping your senior pup live as long and comfortable a life as possible with osteoarthritis.

Yellow Lab panting while in a wooded trail, photo

Getting older can be “ruff” for our senior dogs. With advancing age comes a variety of potential health problems, including osteoarthritis (OA). If you yourself suffer from arthritis, you may have some idea of what your dog is facing. But even if you don’t, or perhaps especially if you don’t, it is important to know about osteoarthritis in dogs. A solid understanding of the condition can help you recognize what is going on with your dog and get him or her some much needed relief.

Table Of Contents
  1. What is osteoarthritis in dogs?
  2. What are the stages of osteoarthritis?
  3. Why might a dog get osteoarthritis?
  4. Which joints tend to be affected?
  5. What are the symptoms of osteoarthritis in dogs?
  6. How is osteoarthritis diagnosed?
  7. What is the treatment for osteoarthritis in dogs?
  8. What is the outlook for dogs with osteoarthritis?
  9. Final thoughts of hope
  10. Does your dog have osteoarthritis?

What is osteoarthritis in dogs?

Osteoarthritis is otherwise known as degenerative joint disease (DJD). As the name DJD would imply, it is a progressive, irreversible, degeneration of the cartilage and bone within a joint. The process involves:

  • Inflammation (swelling)
  • Loss of cushioning within the joint
  • Pain
  • Lameness (limping or a change in overall mobility)
  • Decreased quality of life for both the dog and his or her family

Before you can understand how the joint changes in canine osteoarthritis, you first need to understand normal joint anatomy. Several components make up a joint:

Cartilage, bone, and joint fluid

A layer of squishy cartilage normally covers the ends of the bones where they come together to form a joint. Synovial fluid (i.e. joint fluid) fills the joint capsule and provides lubrication and nutrition to the joint. Together, the cartilage and synovial fluid protect the subchondral bone (i.e. bone just below the cartilage) from damage due to pressure and friction as the joint moves and bears weight. They do this by providing smooth, slick surfaces that can glide past one another during normal joint movement.

Joint capsule

The joint capsule has a fibrous layer which acts as a physical boundary to keep the synovial fluid contained within the joint space. There also is an inner layer to the joint capsule called the synovium, which is responsible for producing synovial fluid.

Senior black dog mix lying in a grassy field, photo
Osteoarthritis may be the cause of your dog’s joint pain and mobility issues.

Joint changes in osteoarthritis

As a dog develops DJD, cartilage breaks down & the synovium becomes thick and swollen. As a result, the body tries to stabilize the joint by producing new bone tissue. The surfaces of the bones become irregular as osteophytes (new pieces of bone) grow on their surface. When bone is rubbing on bone in the joint due to cartilage loss or osteophyte formation, this can cause significant pain. The degenerative process also leads to inflammation within the joint.

What are the stages of osteoarthritis?

Since these changes tend to be progressive over time, dogs may go through various stages of osteoarthritis. Sometimes it progresses quickly and other times that progression may take years.

Stage 0 to 1

Early in the disease, you may not see many outward signs even though the conditions are right for osteoarthritis to develop.

Stage 2

When a dog hits Stage 2, it may initially simply seem like he or she is slowing down or getting calmer with age. He or she may be a bit less interested in playing or going on walks.

Stage 3

At this point, the signs tend to be a bit more visible. You may notice your dog obviously limping, having trouble with stairs, or slower to get up and down.

Stage 4

In end-stage osteoarthritis, a dog can be so painful he or she is unable to bear any weight on the leg. If the changes only occur in one leg, this can lead to a dog walking “three-legged lame” (i.e. holding one leg up as he or she stands and moves). If a dog has end-stage osteoarthritis in multiple legs, he or she may have a difficult time walking or functioning in general. 

Why might a dog get osteoarthritis?

There can be multiple risk factors for osteoarthritis:

Body weight

Being overweight or obese makes arthritis much more likely. A dog that is obese has more pressure on his or her joints. Increased pressure over time can cause cartilage to break down. To determine if your dog is obese or overweight, try out my easy three-step method for determining your dog’s canine body condition score.

Overweight Beagle lying on the carpet, photo
Obesity can increase your dog’s chances of developing osteoarthritis.

Age

While dogs can develop osteoarthritis at any year of age, it is more common in older dogs.

Previous injury or disease

When a dog injures a limb or joint (for example with a torn ACL in dogs) or has a joint disease (such as hip dysplasia in dogs), he or she is more likely to develop osteoarthritis in that joint. This is because the injury or disease alters the joint mechanics, causing the body to try to compensate. Repair of the injury, such as a TPLO surgery for dogs, does decrease the amount of arthritis. But these dogs usually do still develop some degree of arthritis.

Genetics

Some breeds (such as German Shepherds and Labrador Retrievers) or specific genetic lines are predisposed to the development of osteoarthritis. In those breeds—especially if their genetic line carries high risk of hip and elbow dysplasia—dogs may be born with an improperly formed joint. As a result, they can develop arthritis as early as the first year of life. 

This is one of the many reasons it is important to find a reputable breeder who does health screenings on their breeding dogs if you plan to purchase a puppy. The Orthopedic Foundation for Animals (OFA) website has a list of all recommended screening tests for most of the dog breeds. It also explains a bit about how the screening tests are conducted.

Which joints tend to be affected?

Arthritis can technically happen in any joint in the body. But the most commonly affected joints are places like the hip, stifle (i.e. knee), shoulder, elbow, spine, or carpus (i.e. wrist).

Weimaraner lying on a blue couch licking carpal joint, as an example of a sign of osteoarthritis, photo
Licking a particular joint or leg may be an indication of pain.

What are the symptoms of osteoarthritis in dogs?

Dogs can sometimes be very stoic. It isn’t always easy to recognize signs your dog is in pain. However, try to keep an eye out for some of these more common signs of arthritis in dogs:

  • Limping on one or more legs (either a visible limp or walking with the body held in a new position)
  • Shifting weight from one leg to the other while standing
  • Holding one leg up (or “toe touching” a foot) while standing
  • Restless sleeping (shifting positions or moving to new resting places more often than normal)
  • Licking a particular joint or leg
  • Pain or resistance to being petted near a certain joint
  • Taking longer than usual to stand up
  • Growing tired more quickly during a walk
  • Avoiding stairs or taking them much more slowly than in the past
  • Inability to jump on the couch or bed, or to climb into the car
  • Panting or whining while at rest or while trying to sleep
  • Your dog’s back legs are collapsing

If you notice any of these signs, please contact your veterinarian.

How is osteoarthritis diagnosed?

Your veterinarian will start off by doing a physical exam to look for muscle pain, joint stiffness, decreased range of motion, and evidence of pain or tenderness on palpation of the joints. After a thorough exam, your vet may strongly suspect the presence of osteoarthritis. But it is likely that he or she will recommend further diagnostics to confirm the diagnosis.

X-rays are often the best way to definitively diagnose osteoarthritis. Sometimes the veterinary team can take these X-rays while your dog is awake. Other times (especially if your dog has a lot of pain, or experiences stress at the vet’s office) your vet may wish to use sedation. This makes the process easier on your dog and helps get clear images.

Your vet will use the X-rays to look at the conformation (structure) of the joint and determine which joints are affected. He or she also can use them to evaluate the severity of the damage within the joints. 

Early arthritis (stages 0 to 2) may be subtle and more difficult to see on an X-ray. However, advanced or end-stage arthritis (stages 3 to 4) is very noticeable. The veterinarian may see changes, such as osteophytes (i.e. new bone formation), a narrowed joint space, and changes in the shape or appearance of the bone, that signify osteoarthritis.

What is the treatment for osteoarthritis in dogs?

There is currently no cure for arthritis in dogs (or in people). However, it is possible to manage the disease and its symptoms. Treatment goals are to reduce pain and increase mobility (thus maintaining a good quality of life for your sweet pup).

The earlier the disease is diagnosed, the more successful treatment can be. For this reason, if you notice subtle changes in your dog’s behavior, it is important to talk to your veterinarian right away. His or her recommendations may be able to delay the progression of the disease and keep your dog feeling good and moving comfortably.

Your dog may benefit from some of these treatment and management options long term:

Weight management

Your vet will evaluate your dog’s weight and let you know if weight loss may be beneficial. Even if your dog is not obese, losing a bit of weight may be enough to decrease joint stress and increase overall comfort. In that case moving down one body condition score on the chart below (while preventing excessive weight loss and decreased muscle mass) may be all your dog needs to feel better.

Body Condition Score chart from Purina, photo

If you need some tips on how to help your dog lose weight, talk to your veterinarian and check out these two articles:

  1. Is My Dog Overweight? Your 7 Most Weighty Questions Answered
  2. How to Help a Dog Lose Weight (Without Losing Your Mind)

Appropriate activity levels

It is also important to keep your dog active while keeping exercise within his or her abilities. For instance, you may have an active Husky who enjoyed running many miles with you every day. After arthritis develops, he or she may not be able to continue the runs. But he or she may still enjoy going on long walks with you.

Dog wearing a life vest while being helped to swim in an indoor pool to help with osteoarthritis, photo
Water therapy such as swimming or an underwater treadmill can be very helpful for dogs with OA.

In general, you want to follow your dog’s cues. If your dog wants to keep walking or playing, allow him or her to do so. But pay attention to how he or she feels afterwards. If your pup seems painful or tired later in the day, then be sure to do less the next time you exercise together. It may help to keep a journal so that you can adequately track the kind of exercise that is best for your precious canine companion.

As your dog’s arthritis progresses, your vet may recommend a more gentle exercise such as swimming or underwater treadmill sessions. Swimming can often be done independently. However, underwater treadmill work will require visiting a veterinarian who has special equipment and training in veterinary rehabilitation.

If your veterinary clinic does not offer this, the veterinary team will likely be able to recommend another clinic (or specialty practice) that does have an underwater treadmill.

ToeGrips

My signature product, Dr. Buzby’s ToeGrips® dog nail grips, can be a great asset for dogs with arthritis. These rubber rings slip onto your dog’s nails to give him or her a bit of added traction. This is especially helpful on slippery floors which pose a big hazard for dogs with osteoarthritis. When they can’t get good traction, they may slip and further injure themselves. ToeGrips can allow dogs to navigate the floors with confidence and make it easier for them to stand up.

Cavalier King Charles Spaniel lying on a deck, wearing blue toe grips to aid walking on slippery floors, photo
ToeGrips can help provide traction for your dog on slippery surfaces like hardwoods.

Over the years, I have heard countless testimonials of how ToeGrips have helped arthritic dogs. Plus I have seen it with my own eyes time and time again (like with Hope, a sweet arthritic dog who played a pivotal role in the story of ToeGrips).

Ringo the Dog with ToeGrips
ToeGrips® dog nail grips

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Alternative therapies

Veterinary medicine offers additional management options such as canine massage, acupuncture, a doggy chiropractor, and/or laser therapy for dogs. These can also be beneficial to your dog’s comfort and overall quality of life. As an added bonus, you may even be able to find a veterinarian who makes house calls to offer these services in your home. This can be especially helpful when going for a ride in the car is not comfortable for your dog.

Environmental modifications

There are many ways to help your senior dog with arthritis at home. Stairs and ramps can make it easier for him or her to get into the car or onto the bed. He or she may also appreciate having comfortable orthopedic foam beds in multiple locations in the house. Non-slip rugs or yoga mats can also give arthritic dogs some extra traction and confidence in areas with slippery floors.

Joint supplements

Your dog’s doctor may recommend joint supplements for dogs such as glucosamine and chondroitin sulfate, green lipped mussel for dogs, methylsulfonylmethane (MSM), deer velvet supplements for dogs, tumeric/curcumin, hyaluronic acid, omega-3 essential fatty acids for dogs, or CBD oil for dogs. These products give the body the building blocks that it needs to keep the joints well-lubricated and well-cushioned. Early in the course of disease, supplements may be enough to help your dog feel and move much better!

My favorite choice for arthritic pups is Dr. Buzby’s Encore Mobility™ hip and joint supplement. It contains green lipped mussel and deer antler velvet, two amazing ingredients which have a host of benefits for the body. Check out the infographic below to learn more!

benefits of green lipped mussel and new zealand deer velvet infographic, photo

Just like ToeGrips, Encore Mobility has been life changing for many arthritic dogs. I spent countless hours researching the benefits of green lipped mussels and deer velvet before deciding to market this product, and I stand behind it wholeheartedly. I wouldn’t recommend it if I thought it was anything less than extremely safe and highly effective.

Save 10% on Encore Mobility™ Joint Supplement for Dogs

encore mobility joint supplement, photo
Dr. Buzby’s Encore Mobility™ hip and joint supplement for dogs contains both New Zealand deer velvet and green lipped mussel.

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Disease-modifying osteoarthritis drugs

Your veterinarian may also recommend a disease-modifying osteoarthritis drug (DMOAD) such as Adequan for dogs. DMOADs are unique in that rather than just treat the pain and inflammation after it happens like most medications, they actually help slow down the progress of osteoarthritis. Adequan Canine® (i.e. Adequan), an injectable medication, is the only FDA approved DMOAD for dogs. It protects joint health by:

  • Improving the quality of the joint fluid
  • Blocking the enzymes and hormones that promote cartilage destruction
  • Reducing inflammation in the joint
  • Stimulating the production of cartilage building blocks

Prescription medications

Later in the course of degenerative joint disease, it may take more than good management, joint supplements, and DMOADs to relieve arthritis pain in dogs. If you feel like your dog is still struggling to be comfortable and happy, it may be time to talk to your vet about a prescription medication trial.

Often times the first medication prescribed is an NSAID (non-steroidal anti-inflammatory drug) such as carprofen, deracoxib, firocoxib, grapiprant, or meloxicam. (As an aside, there are a host of brand names for carprofen such as Rimadyl®, Zinecarp®, and Canidryl®, just to name a few.)

This class of medication decreases pain and swelling that is associated with osteoarthritis. Before prescribing an NSAID, your vet may recommend blood work to assess your dog’s kidney and liver function. Based on the results, he or she will let you know how often the blood work should be rechecked.

It is important to note that the medications listed above are all formulated for dogs. It is not safe to give your dog human NSAIDS. Deciding to give your dog Advil, or other human NSAIDS, may cause GI bleeding, kidney or liver failure, seizures, or other problems.

At first, an NSAID may be the only medication your dog needs. But as arthritis progresses, and pain worsens, your dog may need additional medications. Using several medications of different types to decrease pain by targeting different parts of the pain pathway is called multimodal pain management. 

When taking that approach, your vet may decide to add in gabapentin for dogs, amantadine for dogs, tramadol for dogs, ketamine injections, Tylenol3, and/or other drugs. As long as your dog tolerates the medications well without concerning side effects, this type of therapy can be incredibly effective at maintaining comfort and extending your dog’s quality of life. 

Surgery

In some dogs, management of arthritis may also include surgical options. When a dog is diagnosed with a congenital abnormality (i.e. present from birth) at a young age, surgery, such as juvenile pubic symphysiodesis for puppies with hip dysplasia, may be able to prevent or delay the onset of osteoarthritis. This can keep your dog active and pain free for many extra years.

Doberman puppy with severe carpal deformities, photo
For dog’s born with joint or bone deformities, surgery may be the best option to help minimize pain and arthritis.

If your dog is dealing with pain and advanced disease of the hips at an older age, your vet may recommend a surgery such as a femoral head ostectomy(FHO) or a total hip replacement (THR).

The FHO removes the head of the femur. This procedure allows your dog’s body to create a false joint and stabilize the hip with the surrounding muscle tissue. There is no more bone-on-bone contact, so the source of pain has been removed. Often, this is best for athletic dogs that are of a smaller size, and who are not overweight.

On the other hand, the THR completely replaces the joint with a metal joint. This surgery is more complex, and is therefore more costly. However, it is often the best option for large breed dogs, or dogs with other painful joints.

If your dog’s osteoarthritis is in a joint other than the hips, surgical options will be different. However, the goal is the same—help your dog have better mobility with less pain. A consultation with your vet or an orthopedic surgery specialist can be extremely helpful. He or she will be able to help you decide what is medically and practically the best option.

It is also good to keep in mind that medical management and physical therapy will be required for a period of time after surgery. This helps give your beloved dog the best chance for a good outcome.

What is the outlook for dogs with osteoarthritis?

Sometimes, dogs with arthritis go on to live full lives. Their osteoarthritis is well managed for many years until their life comes to an end for unrelated reasons. However, in other circumstances, arthritis progresses more quickly and gets to the point where it is keeping a dog from enjoying life.

What happens when the treatments are no longer working?

Quality of life can certainly decline rapidly when there is a loss of mobility or an inability to control pain. You may wish to seek out a vet who provides dog hospice care or have a discussion with your dog’s care team regarding end-of-life arrangements if:

  • Your dog’s mobility and joint pain are getting worse despite multimodal therapy.
  • He or she won’t take pills well anymore.
  • Your dog is dealing with concurrent health issues (such as kidney disease or liver disease in dogs).
  • His or her quality of life is suffering significantly.
Senior terrier mix lying on his owner's chest while on the couch, photo
OA is a progressive disease and may significantly effect your dog’s quality of life.

As a dog’s family, it is common to wish you could do more. But at the end of a long and difficult road (such as managing osteoarthritis), sometimes the kindest thing you can do is know when to give your dog an escape from his or her struggles. Choosing euthanasia is not a failure—it is a way of allowing your dog to skip over the very hardest days that are still ahead of him. That is a merciful and kind decision, made with love.

If you are struggling with the decision of when to euthanize your dog with OA, these articles may help:

  • In-Home Dog Euthanasia: Heartfelt Answers to 12 FAQs
  • Preparing for Your Dog’s Euthanasia: 10 Thoughts for Peace
  • Dog Euthanasia: Knowing When to Say Goodbye
  • How Will You Know When It’s Time to Euthanize Your Dog? 5 Caring, Heartfelt Messages

Final thoughts of hope

Wherever you are in your dog’s osteoarthritis journey, I want you to know that you are not alone. There are countless other dog parents who are going through the same things with their dogs. And your veterinarian can help you find the right combination of therapies for your pup. There are many options that can potentially keep your dog happy, comfortable, and active for some period of time.

Yes for some dogs, osteoarthritis does eventually get to the point where you may decide that euthanasia is the right choice. And I understand it isn’t easy to think about eventually having to say goodbye to your sweet pup. But until that day comes, keep on living and loving with your dear dog. Make memories and treasure the days.

Does your dog have osteoarthritis?

Please share his or her story and any tips you have learned along the way.

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Filed Under: Dog Mobility, Our Blog: The Buzby Bark

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Comments

  1. Judith B. Gibson says

    October 15, 2021 at 1:30 pm

    GReat reference! …..TY !!!!❤️

    Reply
    • Dr. Julie Buzby says

      October 15, 2021 at 6:35 pm

      You are very welcome Judith! Helping senior dogs live longer, healthier, and more comfortable lives is a big passion of mine. It is my pleasure to share this important information about arthritis with dog parents!

      Reply

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About Dr. Buzby

Dr. Julie Buzby has been an integrative veterinarian for twenty years and has earned certification by the American Veterinary Chiropractic Association in 1998, and by the International Veterinary Acupuncture Society in 2002.
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