DISH

What is DISH (diffuse idiopathic skeletal hyperostosis)?

Diffuse idiopathic skeletal hyperostosis (“DΙSΗ”) is a condition that causes bone to form in places where it is not usually found. It is often found in patients who also have osteoarthritis (see our osteoarthritis explanations for the knee which is applicable to the spine too). 

DΙЅΗ affects bones in the back (or spine). New bone growths form along the ligaments that join the bones of the back together. The new bone growths are called bone spurs. 

Bone spurs can also form in other parts of the body, where ligaments and tendons (strong bands of tissue that connect muscles to bones) attach to bones. This can happen on the ankles, heels, knees, hips, shoulders, elbows, or hands.

Doctors don’t know what causes DIЅΗ.

It is more common as we get older, and more common in men than women. Approximately 1 in 20 people may be affected over the age of 70. It is more common in those who are overweight and in those with high blood pressure and/or adult onset diabetes.