Contribution à l'étude des paraplégies pottiques.

The author studied forty cases of Pott's paraplegia at the maritime hospital of Berck and its annex. During that time the number of cases of Pott's disease treated in the hospital was approximately 500, giving 8 per cent with paraplegia. In thirty-two of these forty cases, Pott's disease was dorsal in location. Pott's paraplegia occurred as often in children as in adults; it was usually due to medullary compression, rarely to radicular compression. It was found that paraplegia might occur early in the course of Pott's disease, toward the end of the first year, at which time symptoms develop rapidly, or late in the course of Pott's disease, perhaps several years after the Pott's disease which has been imperfectly treated; in such cases, symptoms develop slowly and insidiously. In cases examined pathologically, the author found that Pott's paraplegia was due rarely to compression by bone; very frequently to an intraspinal