The effect of using different coordinate systems on in-vivo hip angles can be estimated from computed tomography images.

ABSTRACT: Measurements of hip kinematics inherently depend on the coordinate system in which they are derived, yet the effect of the coordinate system definition on calculations of hip angles is not well-understood. Herein, hip angles calculated during dynamic activities were compared using coordinate systems described in the literature. In-vivo kinematic data of 24 participants (13 males) were analyzed during gait and the anterior impingement test using dual fluoroscopy and model-based tracking. Two coordinate systems for the pelvis (anterior pelvic plane, International Society of Biomechanics [ISB]) and three coordinate systems for the femur (table top plane with two definitions of the superior-inferior axis, ISB) were evaluated. Bony landmarks visible on computed tomography (CT) images were ident

SUBMITTER: Uemura K 

PROVIDER: S-EPMC6800649 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature