title: Motor cortex extirpation (1886-1950): the influence of Sir Victor Horsley.
abstract: OBJECTIVE
  To delineate Sir Victor Horsley's influence on neurosurgeons who subsequently reported (through 1950) on the effects of motor cortex extirpation surgery.
  
  
  METHODS
  We used the available literature to divide Horsley's influence into five categories, i.e., direct trainee, via a trainee or colleague, via personal contact and publications, via publications only, and no evidence of influence.
  
  
  RESULTS
  Of 15 later neurosurgeons who reported results through 1950, the numbers corresponding to the five categories were 1, 6, 2, 3, and 3, respectively.
  
  
  CONCLUSIONS
  Horsley's influence on neurosurgeons who performed motor cortex extirpation surgery was primarily indirect, with most influence occurring via trainees of his students or colleagues. Although indirectly associated with Horsley, Paul Bucy was his truest disciple.
authors.affiliation: Department of Anatomy, Indiana University School of Medicine, Fort Wayne, Indiana 46805, USA. vilensky@ipfw.edu
authors.forename: Joel A
authors.initials: JA
authors.lastname: Vilensky
authors.forename: Sid
authors.initials: S
authors.lastname: Gilman
mesh_terms: D049673:History, 20th Century; D006761:Hospitals / Q000266:history; D006801:Humans; D008131:London; D009044:Motor Cortex / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000266:history*