Louis Théophile Joseph Landouzy
Louis Théophile Joseph Landouzy (27 March 1845 – 10 May 1917) was a French neurologist from Reims, and whose father and grandfather were also physicians.
His name is associated with the "Landouzy-Dejerine syndrome", a type of muscular dystrophy with atrophic changes to the facial muscles and scapulo-humeral region. It is named along with neurologist Joseph Jules Dejerine, who was a colleague and close friend. Landouzy was a witness at the wedding of Dejerine to Augusta Marie Klumpke (1859–1927) in 1888.
Landouzy's primary area of interest dealt with tuberculosis, and he was a major figure involving education of the public for its eradication. He was a member of several international committees in regards to tuberculosis.
He is credited with coining the word "camptodactyly" to describe a flexion deformity of the finger(s) at the proximal interphalangeal joint (1906). With neurologist Joseph Grasset (1849–1918), his name is associated with the "Landouzy-Grasset Law". This law states that in lesions concerning one hemisphere of the brain, a patient will turn his head to the side of affected muscles if there is spasticity, and to the side of the cerebral lesion if there is paralysis.