Arthritis and osteoarthritis – joint diseases in dogs

Is your dog moving more stiffly, reluctant to go down stairs or jump into the car? Is he limping or does he have a swollen joint? Around 20% of all dogs develop joint diseases such as arthritis and osteoarthritis during their lifetime. But what is the difference between them?

INHALT
Arthritis or osteoarthritis Causes Symptoms Diagnosis Treatment Forecast Prophylaxis
Arthritis or osteoarthritis

Arthritis is an inflammation of the joints that causes pain. It can affect one or more joints. If left untreated, arthritis can become chronic and lead to osteoarthritis.

Osteoarthritis is the progressive wear and tear of joints due to aging and wear and tear. The joint cartilage loses its elasticity, begins to rub or tear, and becomes increasingly thin and rough. Impacts are then absorbed by the joint capsule, which thickens and stiffens due to the strain. The composition of the joint fluid changes. In addition, less of it is produced. This reduces the lubricating and cartilage-nourishing function of the joint fluid. The bone beneath the cartilage now bears the load and expands its surface area with bony growths (exostoses). These rub against the joint and damage the cartilage even further. This results in severe joint pain.

Healthy joints, arthritis, osteoarthritis
Healthy joint: 1 bone | 2 joint capsule | 3 synovial membrane | 4 joint cartilage | 5 joint cavity with joint fluid ; Arthritis: 6 thickened synovial membrane | 7 inflamed joint ; Osteoarthritis: 8 thickened joint capsule | 9 destroyed joint cartilage | 10 broken-off cartilage fragments | 11 bony growths
Causes

Sterile arthritis is triggered by injuries, such as twisting, bruising or contusion, as well as excessive strain during sports or obesity. Deep, open wounds that extend into a joint can lead to infectious arthritis. This can also occur in people with poor dental health, as germs from the tooth root can enter the bloodstream. Some infectious diseases such as Lyme disease, ehrlichiosis, or leishmaniasis (see corresponding articles) trigger arthritis. Rheumatoid arthritis, which usually affects several joints, is an autoimmune disease. The body attacks its own joint cartilage.

Arthrosis is caused by excessive or incorrect strain. This can be due to misaligned limbs or incorrectly formed joints, such as in elbow and hip joint dysplasia (see corresponding articles). Arthrosis can also develop after strains, sprains, bone fractures, or arthritis. Lack of exercise and obesity also contribute to its development. Older and large dogs are particularly affected. Arthrosis occurs more frequently in Golden Retrievers, Labrador Retrievers, German Shepherds, Bernese Mountain Dogs, and Great Danes.

Symptoms

Arthritis is characterized by the typical signs of inflammation: the joint is swollen, reddened, painful, warm, and has limited function. The dog relieves the affected limb, limps, or does not want to move.

Osteoarthritis is a gradual process. Little by little, the dog becomes less playful, has difficulty getting up, climbing stairs or jumping into the car, and becomes stiff or lame. In most cases, the dog will warm up after a while.

Diagnosis

Based on your preliminary report, your veterinary practice will first conduct a clinical and orthopedic examination. They may also perform flexion tests on the joints. An X-ray can be used to distinguish between arthritis and osteoarthritis. In some cases, an ultrasound, CT scan (computed tomography), MRI (magnetic resonance imaging), or endoscopic examination of the joint (arthroscopy) may be necessary for a more accurate diagnosis (see relevant articles). A blood test detects the increased number of inflammatory cells associated with arthritis. Another test is a joint puncture, in which joint fluid is removed using a cannula and examined for inflammatory parameters.

Treatment

If your dog has arthritis, they will be given anti-inflammatory and pain-relieving medication. If there is a bacterial infection, your vet will also prescribe antibiotics. You can speed up the healing process with cooling and physiotherapy. You must take care of your dog until they have fully recovered. If your dog is overweight, you should make sure they lose weight, regardless of whether they have arthritis or osteoarthritis.

The aim in osteoarthritis is to relieve your dog's pain and slow down the progression of the disease. Painkillers and anti-inflammatory medication are also used here. In particularly severe cases, surgery such as joint stiffening or joint replacement may be necessary. However, as a pet owner, you can make a big contribution yourself by controlling your dog's weight, optimizing their diet, and ensuring they get adequate exercise. Special foods and supplements support joint health. Regular light exercise maintains the muscles and mobility of the joints. Dog swimming is particularly gentle on the joints and strengthens them. In addition to reducing pain, additional physiotherapy achieves even more targeted improvement in mobility. There are also exercises you can do at home with your dog.

Forecast

If arthritis is treated early, the chances of recovery are generally good. If the condition is already chronic or rheumatoid arthritis, the prognosis is less favorable.

Osteoarthritis cannot be cured. However, you can improve your dog's quality of life with the treatment mentioned above.

Prophylaxis

The most important thing is to avoid obesity and ensure your dog has a diet that is appropriate for its needs and age. Make sure your dog is at the right weight from puppyhood onwards. Your vet will be able to provide professional support (see article on ideal dog weight). The petsXL health passport shows you all your dog's weight data at a glance. This gives you a complete overview of your dog's weight development at all times.

Also avoid strenuous activities such as constantly climbing stairs or jumping in and out of the car. Long walks are not recommended, especially when your dog is still a puppy. Only let your dog run alongside your bike once it is fully grown.

Dog and car ramp
A ramp makes it easier to jump into the car