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Hip rotation during standing and dynamic activities and the compensatory effect of femoral anteversion: An in-vivo analysis of asymptomatic young adults using three-dimensional computed tomography models and dual fluoroscopy.


ABSTRACT: BACKGROUND:Individuals are thought to compensate for femoral anteversion by altering hip rotation. However, the relationship between hip rotation in a neutral position (i.e. static rotation) and dynamic hip rotation is poorly understood, as is the relationship between anteversion and hip rotation. RESEARCH OBJECTIVE:Herein, anteversion and in-vivo hip rotation during standing, walking, and pivoting were measured in eleven asymptomatic, morphologically normal, young adults using three-dimensional computed tomography models and dual fluoroscopy. METHODS:Using correlation analyses, we: 1) determined the relationship between hip rotation in the static position to that measured during dynamic activities, and 2) evaluated the association between femoral anteversion and hip rotation during dynamic activities. Hip rotation was calculated while standing (static-rotation), throughout gait, as a mean during gait (mean gait rotation), and as a mean (mid-pivot rotation), maximum (max-rotation) and minimum (min-rotation) during pivoting. RESULTS:Static-rotation (mean?±?standard deviation; 11.3°?±?7.3°) and mean gait rotation (7.8°?±?4.7°) were positively correlated (r?=?0.679, p?=?0.022). Likewise, static-rotation was strongly correlated with mid-pivot rotation (r?=?0.837, p?=?0.001), max-rotation (r?=?0.754, p?=?0.007), and min-rotation (r?=?0.835, p?=?0.001). Strong positive correlations were found between anteversion and hip internal rotation during all of the stance phase (0-60% gait) and during mid- and terminal-swing (86-100% gait) (all r?>?0.607, p?

SUBMITTER: Uemura K 

PROVIDER: S-EPMC6599491 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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Hip rotation during standing and dynamic activities and the compensatory effect of femoral anteversion: An in-vivo analysis of asymptomatic young adults using three-dimensional computed tomography models and dual fluoroscopy.

Uemura Keisuke K   Atkins Penny R PR   Fiorentino Niccolo M NM   Anderson Andrew E AE  

Gait & posture 20180131


<h4>Background</h4>Individuals are thought to compensate for femoral anteversion by altering hip rotation. However, the relationship between hip rotation in a neutral position (i.e. static rotation) and dynamic hip rotation is poorly understood, as is the relationship between anteversion and hip rotation.<h4>Research objective</h4>Herein, anteversion and in-vivo hip rotation during standing, walking, and pivoting were measured in eleven asymptomatic, morphologically normal, young adults using th  ...[more]

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