title: Reliability and validity of 4D rasterstereography under dynamic conditions.
abstract: Purpose of this study was to evaluate the reliability and validity of 4D rasterstereography under dynamic conditions. Therefore simulated anatomical fixed points on a wooden plate were measured during different movements. Seven different motion patterns in all three angles of space were evaluated. The simulated parameter trunk length was measured with an accuracy of 3.58 mm (SD±3.29 mm) and the dimple distance was detected with an accuracy of 0.88 mm (SD±1.04 mm). With this rasterstereographic prototype it is possible to examine dynamically the spinal posture with adequate accuracy.
authors.affiliation: Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany.
authors.forename: Marcel
authors.initials: M
authors.lastname: Betsch
authors.forename: Michael
authors.initials: M
authors.lastname: Wild
authors.forename: Pascal
authors.initials: P
authors.lastname: Jungbluth
authors.forename: Mohssen
authors.initials: M
authors.lastname: Hakimi
authors.forename: Joachim
authors.initials: J
authors.lastname: Windolf
authors.forename: Bart
authors.initials: B
authors.lastname: Haex
authors.forename: Thomas
authors.initials: T
authors.lastname: Horstmann
authors.forename: Walter
authors.initials: W
authors.lastname: Rapp
mesh_terms: D001415:Back / Q000033:anatomy & histology*; D006801:Humans; D008954:Models, Biological; D010780:Photogrammetry / Q000295:instrumentation* / Q000379:methods*; D011187:Posture / Q000502:physiology*; D015203:Reproducibility of Results