Ankylosing spondylitis is a type of inflammatory arthritis that affects the spine and sacroiliac joints (hip).
Ankylosing = fusing
Spondylitis = inflammation of the spine
This is caused by the body's immune system attacking the ligaments and tendons, causing erosion of the bones. To repair themselves, the body builds new bone resulting in the fusion of the bones. This causes the spine to become stiff, inflexible, and painful. Fusion of the spine can result in a hunched over posture.
This condition affects:
Men more often than women
3.5 to 13 individuals per 1000
Symptoms of ankylosing spondylitis include:
Pain and stiffness in the lower back and hips
Pain and stiffness is worse in the morning and after periods of rest