Influence of static alignment of the knee, range of tibial rotation and tibial plateau geometry on the dynamic alignment of "knee-in" and tibial rotation during single limb drop landing
Deutscher übersetzter Titel: | Einfluss der statischen Gelenkstellung des Knies, des Ausmaßes der Tibiarotation und der Geometrie des Tibiaplateaus auf die dynamische Gelenkstellung des Knie-Valgus und Tibiarotation bei einer einbeinigen Landung |
---|---|
Autor: | Arai, Takahiro; Miaki, Hiroichi |
Erschienen in: | Clinical biomechanics |
Veröffentlicht: | 28 (2013), 6, S. 642-648, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0268-0033, 1879-1271 |
DOI: | 10.1016/j.clinbiomech.2013.05.003 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201311007440 |
Quelle: | BISp |
Abstract
Background: Dynamic alignment of “knee-in & toe-out” is a risk factor for anterior cruciate ligament injury and is possibly influenced by static knee alignment, range of tibial rotation and tibial plateau geometry.Methods: Twenty-eight healthy women were classified into valgus, neutral and varus groups based on static alignment of their knees. A 3-dimensional motion analysis was carried out for a single limb drop landing. The range of tibial rotation and posterior tibial slope angle was measured by MRI. Comparison among the 3 groups and correlation between the angles was analyzed during motion. Findings: The differences between the medial and lateral posterior tibial slope angles were greater (P=0.019), also range of internal tibial rotation for the valgus group (P=0.017) and, for the varus group, the “knee-in” angle (P=0.048). The “knee-in” angle correlated significantly with the tibial rotation angle (R=−0.39, P=0.038), and the range of tibial rotation correlated with the variations between the medial and lateral posterior tibial slope angles (R=0.90, P=0.003). Interpretation: The range of tibial rotation, posterior tibial slope and “knee-in” angle varied according to whether the knee was in valgus or varus with the range of tibial rotation dependent on the posterior tibial slope angle. The greater the “knee-in” angle became, the smaller the internal tibial rotation was, acting in a kinetic chain. The results suggest that static alignment of the knee may be utilized as a predictor for potential problems that occur during motion. Verf.-Referat