Reliability and validity of 4D rasterstereography under dynamic conditions

  • Authors:

  • Marcel Betsch;Michael Wild;Pascal Jungbluth;Mohssen Hakimi;Joachim Windolf;Bart Haex;Thomas Horstmann;Walter Rapp

  • Affiliations:

  • Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany;Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany;Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany;Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany;Heinrich Heine University Hospital, Department of Trauma and Hand Surgery, Moorenstrasse 5, D-40225 Düsseldorf, Germany;Division of Biomechanics and Engineering Design, K.U. Leuven, Celestijnenlaan 300C, 3001 Heverlee, Belgium;Medical Park St. Hubertus, Department of Orthopedics, Bad Wiessee, Germany;Eberhard Karls University Hospital, Department of Sports Medicine, Tuebingen, Germany

  • Venue:
  • Computers in Biology and Medicine
  • Year:
  • 2011

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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 3.58mm (SD+/-3.29mm) and the dimple distance was detected with an accuracy of 0.88mm (SD+/-1.04mm). With this rasterstereographic prototype it is possible to examine dynamically the spinal posture with adequate accuracy.