Define interface: a surface forming a common boundary of two bodies, spaces, or phases â interface in a sentence a surface forming a common boundary of two bodies, spaces, or phasesâ¦ See the full definition
Ankylosing Spondylitis (AS) is a type of progressive arthritis that leads to chronic inflammation of the spine and sacroiliac joints. It can also affect other joints and organs in the body, such as the eyes, lungs, kidneys, shoulders, knees, hips, heart, and ankles.
1 Ankylosing spondylitis belongs to a group of arthritis conditions that tend to cause chronic inflammation of the spine (spondyloarthropathies). 2  Ankylosing spondylitis affects males two to three times more commonly than females. 3  Ankylosing spondylitis is a cause of back pain in adolescents and young adults.nkylosing spondylitis is considered one of the many rheumatic diseases because it can cause symptoms involving muscles and joints. Ankylosing spondylitis is two to three times more common in men than in women. In women, joints away from the spine are more frequently affected than in men.