Osteoarthritis
The other condition that is often present in senior pets is osteoarthritis – in fact studies have shown that 90% of cats over 12 years old have signs of osteoarthritis on X-rays. (see below for xrays comparing an affected and unaffected cat) It is a slow progressive disease of one or more of the joints, resulting in changes in the joint and the development of clinical signs. Cats hide illness very well, so signs of osteoarthritis such as becoming unwilling to jump up onto high surfaces and reduced activity, often get put down to old age. Cats don’t usually limp with osteoarthritis, as it often affects both sides of the body. Other signs are listed below.
- Sleeping in different places that are easier to access
- Difficulty using a cat door
- Stiff, particularly after rising
- Litter tray accidents, often urinating or defecating just outside the tray or missing the tray, due to reluctance to climb into high sided trays and difficulty crouching to urinate or defecate
- Decreased grooming, resulting in a matted, scurfy coat
- Reduced interaction and reduced enjoyment of patting
- Playing and going outside less frequently
- Overgrown claws due to decreased activity
Treatment for osteoarthritis is multi-faceted. There are non-steroidal anti-inflammatory drugs (NSAID’s) such as meloxicam, which provide good pain relief but may not be suitable for all cats. Regular blood and urine tests are recommended during use of these medications, to ensure adequate kidney function. There is also gabapentin and tramadol, which can be used in conjunction with NSAID’s, or as a standalone drug in those cats where NSAID’s are unsuitable. There are injectable drugs that can be given regularly in clinic, including Zydax (Cartrophen) which is a disease modifying osteoarthritis drug, which acts on the underlying disease process, preserving joint cartilage and health. This is usually given as a course of injections, once a week for four weeks, then at regular intervals, between every four weeks and three months, depending on the disease state and progression in your cat. A newer option is Solensia, which works like your cats naturally made antibodies to reduce pain signals. It is given as an injection in clinic once a month. Over 75% of owners noticed an improvement in their cat’s pain levels in a three-month study on Solensia.
Another newer option for arthritis in cats is the use of Cannabidiol (CBD) oil. This is used to help decrease inflammation pain, and allows our pets to have a better quality of life. It is also thought to slow the progression of joint degeneration through it’s anti-inflammatory effects, therefore keeping the joint healthier for longer. We are finding that lots of owners are seeing benefits to their cats using CBD oil, with minimal side effects. This is a prescription only medication, therefore not available over the counter. Maintaining an appropriate weight is really important when managing arthritis symptoms. If your cat is overweight, it puts increased pressure on their joints, leading to more pain. At the opposite end of the spectrum, cats who have decreased muscle mass are also going to have increased difficulty getting around. Please contact us for a weight check and advice in a healthy weight for your cat.
There are many supplements for arthritis as well – 4cyte, PAW osteosupport, Joint Guard, Antinol Plus – please let us know if you need more information on these. These products need time to work, so trialling them for 4-6 weeks is necessary before evaluating their effectiveness. Alternative treatments such as acupuncture can also provide some relief from osteoarthritis.
We find that the best therapy for arthritis in cats is multi-modal – meaning that there are many different components to it. Using a combination of prescription medication, supplements and environmental changes give your cat the best chance to live a comfortable and pain free life