[Atlanto-epistropheal subluxation].

Subluxations of the cervical vertebrae were first described in this country in 1889 by Walton,1 who devised the method of manipulative reduction that bears his name. In 1907 Corner 2 reported twenty cases of atlanto-epistropheal subluxations and dislocations, all of traumatic origin, and gave what is probably the best account of the mechanism of their production. The first report of a case of distention subluxation, i. e., subluxation probably due to effusion in the joints concerned,