title: [Evaluation of the usefulness of the EOS 2D/3D system for the measurement of lower limbs anatomical and biomechanical parameters in children].
abstract: BACKGROUND
  Lower limbs anatomical and biomechanical parameters are essential in several paediatric orthopaedic disease, which makes their exact measurement necessary.
  
  
  OBJECTIVE
  The aim of the author was to evaluate the reliability of the EOS 2D/3D System, a 3D reconstruction capable imaging device in children.
  
  
  METHODS
  3D reconstructions were performed in 523 cases aged between 2 and 16 years in whom no abnormality influencing lower limbs biomechanics was observed. For statistical analysis intraclass correlation, paired-samples t-test, Spearman-correlation and Welch-test were used.
  
  
  RESULTS
  Excellent results were found for all parameters in reliability test used by the operator. The step-forward position used during the examination influenced the sagittal tibiofemoral angle only. All examined parameters showed significant correlation with age and gender. Height correlated with neck-shaft angle, hip-knee shift, femoral and tibial torsion only.
  
  
  CONCLUSIONS
  The EOS technology proved to be an appropriate method to measure lower limbs anatomical parameters in children. Changes in these parameters during development correlated with age and gender.
authors.affiliation: Pécsi Tudományegyetem, Klinikai Központ MSI Ortopédiai Klinikai Tanszék Pécs Akác u. 1. 7632.
authors.forename: Adám Tibor
authors.initials: AT
authors.lastname: Schlégl
authors.affiliation: Pécsi Tudományegyetem, Klinikai Központ MSI Ortopédiai Klinikai Tanszék Pécs Akác u. 1. 7632.
authors.forename: Kinga
authors.initials: K
authors.lastname: Szuper
authors.affiliation: Pécsi Tudományegyetem, Klinikai Központ MSI Ortopédiai Klinikai Tanszék Pécs Akác u. 1. 7632.
authors.forename: Szabolcs
authors.initials: S
authors.lastname: Somoskeöy
authors.affiliation: Pécsi Tudományegyetem, Klinikai Központ MSI Ortopédiai Klinikai Tanszék Pécs Akác u. 1. 7632.
authors.forename: Péter
authors.initials: P
authors.lastname: Than
mesh_terms: D000293:Adolescent; D000375:Aging; D001696:Biomechanical Phenomena; D002648:Child; D002675:Child, Preschool; D005260:Female; D005269:Femur / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology*; D005360:Fibula / Q000033:anatomy & histology / Q000502:physiology; D006801:Humans; D021621:Imaging, Three-Dimensional; D007719:Knee Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology*; D035002:Lower Extremity / Q000033:anatomy & histology / Q000502:physiology; D008297:Male; D011859:Radiography / Q000295:instrumentation; D012016:Reference Values; D015203:Reproducibility of Results; D012727:Sex Characteristics; D013977:Tibia / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology*
keywords: EOS 2D/3D; alsó végtagi paraméter; gender specific differences; lower limbs parameter; megbízhatósági vizsgálat; nemi különbségek; reliability study