Robot-aided in vitro measurement of patellar stability with consideration to the influence of muscle loading.

Journal: Biomedical engineering online
Published Date: Jul 23, 2015

Abstract

BACKGROUND: Anterior knee pain is often associated with patellar maltracking and instability. However, objective measurement of patellar stability under clinical and experimental conditions is difficult, and muscular activity influences the results. In the present study, a new experimental setting for in vitro measurement of patellar stability was developed and the mediolateral force-displacement behavior of the native knee analyzed with special emphasis on patellar tilt and muscle loading.

Authors

  • Andrea Lorenz
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. andrea.lorenz@med.uni-tuebingen.de.
  • Evgenij Bobrowitsch
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. evgenij.bobrowitsch@med.uni-tuebingen.de.
  • Markus Wünschel
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. Markus.Wuenschel@uni-tuebingen.de.
  • Christian Walter
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. christian.walter@med.uni-tuebingen.de.
  • Nikolaus Wülker
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. wuelker@med.uni-tuebingen.de.
  • Ulf G Leichtle
    Department of Orthopaedic Surgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany. ulf.leichtle@med.uni-tuebingen.de.

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