Disorder - Spondylosis deformans

Organ Systems Involved
Musculoskeletal

Alternative disorders described within LIDA

Hip dysplasia

Alternative Names
Spinal osteoarthritis; Spondylitis deformans

Presenting Signs

Spondylosis deformans is caused when the joints of the spinal column become inflamed. This causes bony spurs called osteophytes to grow outwards from the spinal bones, or vertebrae. The spurs occur on the ends of the vertebral bodies and vary in size depending on the severity and progression of the disease. In advanced disease the spurs may completely bridge the space between two vertebrae, locking the particular vertebral joint and making the vertebral column less mobile. Any of the vertebrae can be affected but most commonly the problem is found in the last two to three thoracic (chest) vertebrae and any of the lumbar (behind the hips) vertebrae. Most pets don't exhibit clinical signs but when they do these include lameness, back pain and muscle wastage caused by compression of the spinal cord.

Cats at Risk

No particular sex incidence. Primary a problem of middle aged to older animals, but clinical signs can first be seen at two to four years of age.

Breeds Affected
Persian
Siamese


Treatment

Surgical and medical

PubMed References
Spondylosis deformans

Contributor
Miriam Boe