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|Tuberculosis of the spine in an Egyptian mummy|
Pott disease, or Pott's disease, is a form of tuberculosis that occurs outside the lungs whereby disease is seen in the vertebrae. Tuberculosis can affect several tissues outside the lungs including the spine, a kind of tuberculous arthritis of the intervertebral joints. The disease is named after Percivall Pott (1714–1788), a British surgeon. The lower thoracic and upper lumbar vertebrae are the areas of the spine most often affected. The formal name for the disease is tuberculous spondylitis.
Pott’s disease results from haematogenous spread of tuberculosis from other sites, often the lungs. The infection then spreads from two adjacent vertebrae into the adjoining intervertebral disc space. If only one vertebra is affected, the disc is normal, but if two are involved, the disc, which is avascular, cannot receive nutrients and collapses. In a process called caseous necrosis the disc tissue dies leading to vertebral narrowing and eventually to vertebral collapse and spinal damage. A dry soft tissue mass often forms and superinfection is rare.
- – Tuberculin skin test (purified protein derivative [PPD]) results are positive in 84–95% of patients with Pott disease who are not infected with HIV.
- Radiographs of the spine
- – Radiographic changes associated with Pott disease present relatively late. The following are radiographic changes characteristic of spinal tuberculosis on plain radiography:
- – Additional radiographic findings may include the following:
- Vertebral end plates are osteoporotic.
- Intervertebral disks may be shrunk or destroyed.
- Vertebral bodies show variable degrees of destruction.
- Fusiform paravertebral shadows suggest abscess formation.
- Bone lesions may occur at more than one level.
Controlling the spread of tuberculosis infection can prevent tuberculous spondylitis and arthritis. Patients who have a positive PPD test (but not active tuberculosis) may decrease their risk by properly taking medicines to prevent tuberculosis. To effectively treat tuberculosis, it is crucial that patients take their medications exactly as prescribed.
- Non-operative – antituberculous drugs
- Immobilization of the spine region using different types of braces and collars
- Surgery may be necessary, especially to drain spinal abscesses or debride bony lesions fully or to stabilize the spine. A 2007 review found just two randomized clinical trials with at least one year-follow up found which compared chemotherapy plus surgery with chemotherapy alone for treating people diagnosed with active tuberculosis of the spine. As such there is no high grade evidence but the results of this study indicates that surgery should not be recommended routinely and clinicians have to selectively judge and decide on which patients to operate.
- Thoracic spinal fusion with or without instrumentation as a last resort
- Physical therapy for pain-relieving modalities, postural education and teaching a home exercise program for strength and flexibility
- Vertebral collapse resulting in kyphosis
- Spinal cord compression
- Sinus formation
- Paraplegia (so called Pott's paraplegia)
- In Pulitzer Prize-winning novel His Family, young Johnny Geer has a terminal case of Pott's Disease.
- The Passionist saint Gemma Galgani had tuberculosis of the spine.
- The fictional Hunchback of Notre Dame has a gibbus deformity similar to the type caused by tuberculosis.
- In Henrik Ibsen's play A Doll's House, Dr. Rank has "consumption of the spine".
- Jocelin, the Dean who wanted a spire on his cathedral in William Golding's The Spire probably had and died as a result of this disease.
- English poets Alexander Pope and William Ernest Henley both had Pott's disease.
- Anna Roosevelt Cowles, sister of president Theodore Roosevelt, had Pott's disease.
- Søren Kierkegaard may have died from Pott disease, according to professor Kaare Weismann and literature scientist Jens Staubrand
- Chick Webb, swing era drummer and band leader, was afflicted with tuberculosis of the spine as a child, which left him hunchbacked.
- The Sicilian mafia boss Luciano Leggio had Pott's disease and wore a brace.
- Morton, the railroad magnate in Once Upon a Time in the West, has the disease and needs crutches to walk.
- Writer Max Blecher had Pott's disease. His story is portrayed in the 2016 film Scarred Hearts.
- Marxist thinker and Communist leader Antonio Gramsci had Pott's disease, probably due to the bad conditions of his incarceration in fascist Italy during the 1930s.
- Italian writer, poet and philosopher Giacomo Leopardi had this disease.
- It features prominently in the book This Is a Soul, which chronicles the work of American physician Rick Hodes in Ethiopia.
- Imogen in the novella "The Princess with the Golden Hair", part of Memoirs of Hecate County by Edmund Wilson (1946) has Pott's disease.
- Jane Addams, social activist and Nobel Peace Prize winner, had Pott's disease.
- Gavrilo Princip, who assassinated Archduke Franz Ferdinand of Austria, leading to World War I, died in prison of bone tuberculosis.
- Saint Bernadette of Lourdes had tuberculosis of the bone in her right knee
- In the story Two Gentlemen of Verona, written by A.J. Cronin, Lucia had tuberculosis of spine.
- Willem Ten Boom, brother of Corrie Ten Boom, died of tuberculosis of the spine in December 1946
- English writer Denton Welch (1915–1948) died of spinal tuberculosis after being involved in a motor accident (1935) that irreparably damaged his spine.
- Louis Joseph, Dauphin of France 
- "Extrapulmonary Tuberculosis". TB Symptoms. 2013-01-18. Archived from the original on 2013-10-31. Retrieved 2013-07-11.
- Jutte PC, van Loenhout-Rooyackers JH. Routine surgery in addition to chemotherapy for treating spinal tuberculosis. Cochrane Database of Systematic Reviews 2006, Issue 1. Art. No.: CD004532. DOI: 10.1002/14651858.CD004532.pub2. http://onlinelibrary.wiley.com/doi/10.1002/14651858.CD004532.pub2/abstract
- Krasnik, Benjamin (2013). "Kierkegaard døde formentlig af Potts sygdom" (in Danish). Kristeligt Dagblad. Archived from the original on 2016-10-13. Retrieved 2016-10-02.
- The Hiding Place, Chapter: "Since Then"
- Covington, Richard. "Marie Antoinette". Smithsonian. Retrieved 2019-08-18.