title: ENTRY POINT FOR THE ANTEGRADE FEMORAL INTRAMEDULLARY NAIL: A CADAVER STUDY.
abstract: OBJECTIVE
  To analyze the natural exit of the wire guides in major trochanter through retrograde femoral approach, in cadaver specimens.
  
  
  METHODS
  100 femurs had been perforated between the femoral condyles, at 1.2 cm of the intercondylar region. A 3-mm straight wire guide was introduced, through retrograde approach, until the proximal extremity of femur was reached. Femurs were assessed for posterosuperior and anterosuperior portions of major trochanter, pear-shaped cavity, and upper median line between the head-neck and the major trochanter.
  
  
  RESULTS
  in 62%, the straight wire guides exited at the anterior surface of major trochanter. In the pear-shaped cavity, the median distance found was 1.0 cm and the interquartile range was 0.5 cm, initially expressing, in relation to pear-shaped cavity, better accuracy.
  
  
  CONCLUSIONS
  the central axis of the medullar canal, at coronal plane, projected better accuracy in the region of the pear-shaped cavity.
authors.affiliation: Doctor's degree in Medicine, Universidade Federal de São Paulo - Paulista School of Medicine; Head, Prof. Dr. Donato D'Angelo Orthopedics and Traumatology Clinic, Hospital Santa Teresa, Petrópolis, RJ, Brazil.
authors.forename: Pedro José
authors.initials: PJ
authors.lastname: Labronici
authors.affiliation: Resident in Orthopedics and Traumatology, Prof. Dr. Donato D'Angelo Orthopedics and Traumatology Clinic, Hospital Santa Teresa, Petrópolis, RJ, Brazil.
authors.forename: Luiz
authors.initials: L
authors.lastname: Galeno
authors.affiliation: Resident in Orthopedics and Traumatology, Prof. Dr. Donato D'Angelo Orthopedics and Traumatology Clinic, Hospital Santa Teresa, Petrópolis, RJ, Brazil.
authors.forename: Thiago Martins
authors.initials: TM
authors.lastname: Teixeira
authors.affiliation: Associate Professor, Department of Orthopedics and Traumatology, School of Medicine, Universidade Federal do Rio de Janeiro, RJ, Brazil.
authors.forename: José Sergio
authors.initials: JS
authors.lastname: Franco
authors.affiliation: Physician, Prof. Dr. Donato D'Angelo Orthopedics and Traumatology Clinic, Hospital Santa Teresa, Petrópolis, RJ, Brazil.
authors.forename: Rolix
authors.initials: R
authors.lastname: Hoffmann
authors.affiliation: Physician responsible for the Trauma Group, Hospital de Ipanema, Rio de Janeiro, RJ, Brazil.
authors.forename: Paulo Roberto Barbosa
authors.initials: PR
authors.lastname: de Toledo Lourenço
authors.affiliation: Coordinator, Residency Program, Hospital Municipal Miguel Couto, Rio de Janeiro, RJ, Brazil.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Giordano
authors.affiliation: Orthopedist, Orthopedics and Traumatology Clinic, Hospital Municipal Miguel Couto, Rio de Janeiro, RJ, Brazil.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Pallottino
authors.affiliation: Head, Orthopedics and Traumatology Clinic, Hospital Municipal Miguel Couto, Rio de Janeiro, RJ, Brazil.
authors.forename: Ney Pecegueiro
authors.initials: NP
authors.lastname: do Amaral
keywords: Cadaver; Femur; Fracture fixation; intramedullary