title: ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION USING THE DOUBLE-BUNDLE TECHNIQUE - EVALUATION IN THE BIOMECHANICS LABORATORY.
abstract: OBJECTIVE
  The objective of this study was to describe the methodology of knee rotation analysis using biomechanics laboratory instruments and to present the preliminary results from a comparative study on patients who underwent anterior cruciate ligament (ACL) reconstruction using the double-bundle technique.
  
  
  METHODS
  The protocol currently used in our laboratory was described. Three-dimensional kinematic analysis was performed and knee rotation amplitude was measured on eight normal patients (control group) and 12 patients who were operated using the double-bundle technique, by means of three tasks in the biomechanics laboratory.
  
  
  RESULTS
  No significant differences between operated and non-operated sides were shown in relation to the mean amplitudes of gait, gait with change in direction or gait with change in direction when going down stairs (p > 0.13).
  
  
  CONCLUSIONS
  The preliminary results did not show any difference in the double-bundle ACL reconstruction technique in relation to the contralateral side and the control group.
authors.affiliation: Master's Degree in Sciences, Orthopedic Doctor at the Instituto Vita, SP.
authors.forename: Caio Oliveira
authors.initials: CO
authors.lastname: D'Elia
authors.affiliation: Master's Degree in Sciences, Orthopedic Doctor at the Instituto Vita, SP.
authors.forename: Alexandre Carneiro
authors.initials: AC
authors.lastname: Bitar
authors.affiliation: Master's Degree and PhD in Sciences, Orthopedist at the Instituto Vita, SP.
authors.forename: Wagner
authors.initials: W
authors.lastname: Castropil
authors.affiliation: Orthopedic Doctor at the Instituto Vita, SP.
authors.forename: Antônio Guilherme Padovani
authors.initials: AG
authors.lastname: Garofo
authors.affiliation: Physiotherapist at the Instituto Vita, SP.
authors.forename: Anita Lopes
authors.initials: AL
authors.lastname: Cantuária
authors.affiliation: Master's Degree in Sciences; Instituto de Física da USP, SP.
authors.forename: Maria Isabel Veras
authors.initials: MI
authors.lastname: Orselli
authors.affiliation: Master's Degree in Human Anatomy from USP, Researcher at the Instituto Vita, SP.
authors.forename: Isabela Ugo
authors.initials: IU
authors.lastname: Luques
authors.affiliation: Doctorate Professor at the School of Physical Education and Sport, USP, SP.
authors.forename: Marcos
authors.initials: M
authors.lastname: Duarte
keywords: Anterior Cruciate Ligament; Biomechanics; Reconstruction; Rotation