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Osteoarthritis in Dogs

Osteoarthritis or degenerative joint disease is a painful condition of the joints seen frequently in small animals, especially in older pets. Arthritis is an inflammation of the joints and may be of a degenerative or inflammatory type. Osteoarthritis is probably the most common skeletal disease of dogs. This article is concerned with osteoarthritis but there are other types of arthritis which may affect dogs; these are covered elsewhere.

Osteoarthritis is by far the most common type of arthritis seen in small animal practice. It is properly known as degenerative joint disease (DJD), and involves a progressive deterioration of the articular cartilage in moveable joints. It is mainly a problem affecting older animals. Osteoarthritis is a disease which results in changes in the joints leading to pain, stiffness and a reduction in joint flexibility. The cartilage of movable joints changes and deteriorates especially as the animal ages and there are areas of erosion of cartilage together with areas of abnormal deposition of bone.

Osteoarthritis may be primary (idiopathic) or secondary in nature. Primary osteoarthritis is rare and is due to some inherited predisposition towards the problem. Certain breeds of dog have a tendency to develop arthritis because of some inherited anatomical problem. For example some breed lines of the German Shepherd are prone to hip dysplasia with the subsequent development of osteoarthritis. If you are purchasing a new pedigree dog it would be worth asking the breeder if they have any problems with osteoarthritis in their breed line. In the case of breeds with a tendency towards hip dysplasia always ask if the parents of your puppy have been hip scored and only buy pups whose parents have good hips!

Secondary osteoarthritis is very common and tends to occur following a preceding problem or injury to the joint such as an infection, a fracture, trauma or abnormal stress during movement of the joint.

Osteoarthritis is often noticed when the dog becomes lame. This is much easier to spot when only one joint is affected because the gait will become noticeably abnormal with the "favoring" of a limb, expressed as a dropping of a hip or the nodding of the head when walking. If more than one joint is affected the dog may just walk more carefully and slowly or may just become less active altogether; in this case the problem is considerably more difficult to spot. One of the most classic signs of osteoarthritic conditions is that the animal will be very stiff and find movement difficult following rest or sleep but will improve once they start to move around. Sometimes the problem comes to light when a dog is less able to jump into the car or go up stairs, even their favorite chair may become a struggle to reach. Dogs do not often cry out in pain when affected with arthritis but they may become irritable, nervous and less active generally because they are in chronic pain. If your dog shows any of these signs or just seems to be slowing down and getting old arthritis is a likely cause.

Vets will examine your pet for signs of arthritis if it is suspected and can often diagnose it without x-rays or further tests. We manipulate the joints gently to check for swellings, heat, evidence of pain, range of movement and crepitus (a grating feeling when the joint is manipulated). Sometimes it is necessary to take an x-ray to find out what is going on in the joints, although often the extent of damage seen on an x-ray does not correlate with the signs of pain expressed by the animal! Occasionally it is necessary to take a sample of the fluid within the joint to check for infection.

If your dog has osteoarthritis it is important that it does not become plump, since fat dogs have much more stress on their joints due to this extra weight. Also the dog should have a moderate amount of exercise. These two things are extremely helpful but initially may be difficult for the owner to encourage. A dog in pain with arthritis probably wants to rest much of the time and will probably be carrying too much weight as a result of its inactive lifestyle. Cut back on food first to promote weight loss and then as movement naturally becomes easier encourage exercise. Walks should be short and easy, on a level non-slippery surface. Short, frequent walks every day are best; don't take your arthritic dog on a long hike at the weekend!

Osteoarthritis may be treated with medication. This will only control the signs of the condition, it cannot be cured.
Most of the drugs used in osteoarthritis are analgesics (pain killers), which help the animal to function more normally but do not change the underlying pathology of the joint. Various pain control regimes can be tried and the drug most effective for your pet can be found.

Therapy for osteoarthritis often involves the use of NSAIDS or non-steroidal anti-inflammatory drugs. Long term use of NSAIDS may cause problems such as gastrointestinal upsets. They are usually given long term by mouth and should be given with food. Injections can be given but this is only really practical for short term use. Care should be taken with these drugs and the risk versus benefits carefully weighed up. If your dog has kidney, liver or heart problems, a blood clotting disorder or a gastric ulcer these drugs may need to be avoided. NSAIDS should not be given with steroids.

Steroids are sometimes used to alleviate inflammatory erosive osteoarthritis. They help by suppressing the inflammatory changes on the cartilage of the joint. Long term use of corticosteroids should be avoided if possible. Again the benefits of the drugs should be weighed against the risks and an assessment made for each individual animal.

Polysulphated glycosaminoglycans (PSGAGs) and hyaluronic acid derivatives may also be used in osteoarthritic conditions. These may help to protect the joint and provide substances needed for joint repair.

Sometimes surgical treatment is possible but this only applies to specific conditions and where the arthritis is limited to a particular joint. Surgery can be particularly successful in the treatment of severe arthritic conditions of the hip joint. It may also be possible to fuse the bones of a joint together surgically (arthrodesis); this works particularly well in the carpal joint. Surgery would be an unlikely first line of treatment but is usually considered in suitable cases where other methods of treatment have failed.


There are alternative complementary therapies available for osteoarthritis. Nutraceuticals are very often used in this condition. These will be covered in the alternative medicine section of the web site.

Osteoarthritis is unfortunately a progressive condition and the severity of symptoms are likely to increase over time.


















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All Rights Reserved | Content is provided for information only. All content on vetbase.co.uk is protected by copyright and therefore may not be copied without specific written permission from the author. Disclaimer: The content of this website is based upon the opinions of Samantha Coe, unless otherwise stated. Individual articles, extracts, and any links to external sites are based upon the opinions of the respective author(s), who may retain copyright. The information on this website is not intended to replace a consultation with a qualified veterinary professional and is not intended as medical advice. The purpose of this site is the sharing of knowledge and information - Samantha Coe encourages you to make informed healthcare decisions for animals in your care based upon your research and in consultation with your vet.