Definition : The form of rheumatoid arthritis affecting the spine. It occurs predominantly in young
males and produces pain and stiffness as a result of inflammation of the sacroiliac,
intervertebral, and costovertebral joints. Etiology is unknown. [MeSH];
The form of rheumatoid arthritis affecting the spine. It occurs predominantly in young
males and produces pain and stiffness as a result of inflammation of the sacroiliac,
intervertebral, and costovertebral joints. Etiology is unknown. [MeSH]