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Calot's spinal surgery, 19th-century artwork. This operation is being carried out by the French surgeon Jean-Francois Calot (1861-1944) on a condition known as Pott's disease. This curvature of the spine is also known as tuberculous spondylitis, and is caused by tuberculosis (TB). Calot's technique was described in 1896 in a paper he read to the Academy of Medicine in Paris, and the operation is named after him. An orthopaedic institute he founded is also now named after him. Artwork from the 19th volume (first period of 1897) of the French popular science weekly 'La Science Illustree'.
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