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.
The symptoms of ankylosing spondylitis are caused by inflammation of parts of the lower spine. This inflammation can lead to damage and fusion-through the growth of new bone-in the spine, hips, and the joints between the two (the sacroiliac joints).lthough lower back pain is a key symptom of ankylosing spondylitis, the inflammation is not confined to the lumbar spine-it is systemic-meaning that pain can also arise in other parts of the body, such as: 2,5. 1  In other joints (arthritis and synovitis symptoms).