Authors: Jefferson Walter Daniel; Ricardo Vieira Botelho; Jerônimo Buzetti Milano; Fernando Rolemberg Dantas; Franz Jooji Onishi; Eloy Rusafa Neto; Eduardo de Freitas Bertolini; Marcelo Antonio Duva Borgheresi; Andrei Fernandes Joaquim Journal: Spine (Phila Pa 1976) Date: 2018-08 Impact factor: 3.468