Der Orthopäde

, Volume 41, Issue 4, pp 252–259 | Cite as

Muskuloskelettale Modellierung des patellofemoralen Gelenks

Dynamische Analyse der patellaren Führung
  • S. Herrmann
  • R. Lenz
  • A. Geier
  • S. Lehner
  • R. Souffrant
  • C. Woernle
  • T. Tischer
  • R. Bader
Leitthema
First Online:

Zusammenfassung

Numerische Simulationen leisten einen erheblichen Beitrag zum Verständnis von Erkrankungen des patellofemoralen Gelenks. Während experimentelle Arbeiten Limitationen hinsichtlich der Reproduzierbarkeit von Ergebnissen haben, können auf Modellbasis die Auswirkungen verschiedener operativer Verfahren systematisch evaluiert werden. Ziel dieser Arbeit war es, ein muskuloskelettales Modell vorzustellen, das in der Lage ist, die dynamischen Wechselwirkungen im patellofemoralen Gelenk wiederzugeben. Das Modell beinhaltet relevante Knochen- und Weichteilstrukturen des rechten Beins, darunter auch das mediale patellofemorale Ligament (MPFL). Ausgehend von diesem Modell wurden beispielhaft die Auswirkungen von 2 operativen Eingriffen bei aktiver Flexionsbewegung im Kniegelenk verdeutlicht: Zum einen der Einfluss verschiedener femoraler Ansatzpunkte bei der MPFL-Rekonstruktion auf die Belastung des medialen Bandes und zum anderen die Unterschiede in der Patellakinematik zwischen natürlichen und endoprothetisch versorgten Kniegelenken. Abschließend werden Möglichkeiten der muskuloskelettalen Modellierung dargelegt.

Schlüsselwörter

Muskuloskelettale Modellierung Patellofemoralgelenk Patellakinematik Mediales patellofemorales Ligament Knieendoprothese 

Musculoskeletal modeling of the patellofemoral joint

Dynamic analysis of patellar tracking

Abstract

Numerical simulations contribute to the understanding of patellofemoral diseases. Whereas cadaveric studies are limited with respect to reproducibility of results, the impact of different operative approaches can be systematically evaluated based on mathematical models. The objective of this study was to introduce a musculoskeletal model which is capable of describing the dynamic interactions within the patellofemoral joint. It contains major bony and soft tissue structures of the right leg including the medial patellofemoral ligament (MPFL). Two operative approaches were considered based on the model to illustrate the effect on patellofemoral biomechanics during active knee flexion: On the one hand the effect of femoral insertion during MPFL reconstruction on medial soft tissue tension, and on the other hand the difference in patella kinematics before and after total knee arthroplasty. Finally, the potential of musculoskeletal models is discussed.

Keywords

Musculoskeletal modeling Patellofemoral joint Patella kinematics Medial patellofemoral ligament Knee endoprosthesis 
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Notes

Interessenkonflikt

Der korrespondierende Autor gibt für sich und seine Koautoren an, dass kein Interessenkonflikt besteht.

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • S. Herrmann
    • 1
  • R. Lenz
    • 1
  • A. Geier
    • 1
  • S. Lehner
    • 2
  • R. Souffrant
    • 1
  • C. Woernle
    • 3
  • T. Tischer
    • 1
  • R. Bader
    • 1
  1. 1.Orthopädische Klinik und PoliklinikUniversität RostockRostockDeutschland
  2. 2.Lehrstuhl für ErgonomieTechnische Universität MünchenMünchenDeutschland
  3. 3.Lehrstuhl für Technische Mechanik/DynamikUniversität RostockRostockDeutschland

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