Spondylitis deformans
It refers to the inflammation of the vertebral joints resulting in the outgrowth of bone-like deposits on the vertebrae, which may fuse and cause rigid and distorted spine.
Tuberculous spondylitis
Tuberculous spondylitis is also known as Pott's disease. It refers to the infection of the vertebrae of the spine caused by miliary (disseminated) tuberculosis. About 1% to 3% of patients with tuberculosis have infections in the bone; the spine is the most common site. Organisms spread from the site of primary infection through the blood. Once established in the spine, the infection moves through the intervertebral discs to multiple vertebrae. When it extends into the surrounding soft tissue, abscesses may be created. Symptoms: Patients report pain when they move their back. Signs include a low-grade fever, weight loss, and local tenderness. When several upper vertebrae are involved, compression fractures, curvature of the spine (kyphosis), or nerve injury may occur.
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