Methode zur Messung, Bestätigung und Lokalisierung von Gelenkdysfunktionen und ihren Auswirkungen auf den Knorpel

Zusammenfassung

Der Beitrag stellt eine geometrische Methode zur Bestimmung der momentanen Bewegungsachsen (Zentroden) auf Röntgenbildern vor, mit der sich Bewegungsstörungen erfassen und messen lassen. Dies eröffnet insbesondere in der Forschung, aber auch in der Diagnose interessante Möglichkeiten. Die Messung der Lage von Zentroden bei normaler und pathologischer Gelenkfunktion sowie anormaler Zentroden in degenerierten oder traumatisierten Gelenken, die unterschiedlichen Zentrodenpositionen in belasteten und unbelasteten Gelenken sowie die Bedeutung der translatorischen im Vergleich zur passiven rotatorischen Bewegung mit dem Ziel der Normalisierung der Zentrodenpositionen werden erläutert.

Abstract

The article portrays a geometric method to determine the instantaneous motion axes (centrodes) on x-rays which allow detection and measurement of movement dysfunction. This provides interesting opportunities predominantly in research but also in diagnosis. Assessment of centrode position in normal and pathologic joint function as well as abnormal centrodes in degenerated or traumatic joints, variable centrode positions in loaded and unloaded joints and importance of translational in comparison to passive rotatory movement aiming at normalisation of centrode position are described.

Schlüsselwörter

Biomechanik - momentane Bewegungsachse - Zentrode - Oberflächengeschwindigkeit - Knorpeldegeneration - Radiologie

Key words

biomechanics - instantaneous motion axis - centrode - surface velocity - cartilage degeneration - radiology

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