Technical note: validation of a motion analysis system for measuring the relative motion of the intermediate component of a tripolar total hip arthroplasty prosthesis.

Détails

ID Serval
serval:BIB_0CD89B62C9B0
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Technical note: validation of a motion analysis system for measuring the relative motion of the intermediate component of a tripolar total hip arthroplasty prosthesis.
Périodique
Medical Engineering and Physics
Auteur(s)
Chen Q., Lazennec J.Y., Guyen O., Kinbrum A., Berry D.J., An K.N.
ISSN
1350-4533 (Print)
ISSN-L
1350-4533
Statut éditorial
Publié
Date de publication
2005
Volume
27
Numéro
6
Pages
505-512
Langue
anglais
Notes
Publication types: Evaluation Studies ; Journal Article ; Research Support, Non-U.S. Gov't ; Validation StudiesPublication Status: ppublish
Résumé
Tripolar total hip arthroplasty (THA) prosthesis had been suggested as a method to reduce the occurrence of hip dislocation and microseparation. Precisely measuring the motion of the intermediate component in vitro would provide fundamental knowledge for understanding its mechanism. The present study validates the accuracy and repeatability of a three-dimensional motion analysis system to quantitatively measure the relative motion of the intermediate component of tripolar total hip arthroplasty prostheses. Static and dynamic validations of the system were made by comparing the measurement to that of a potentiometer. Differences between the mean system-calculated angle and the angle measured by the potentiometer were within +/-1 degrees . The mean within-trial variability was less than 1 degrees . The mean slope was 0.9-1.02 for different angular velocities. The dynamic noise was within 1 degrees . The system was then applied to measure the relative motion of an eccentric THA prosthesis. The study shows that this motion analysis system provides an accurate and practical method for measuring the relative motion of the tripolar THA prosthesis in vitro, a necessary first step towards the understanding of its in vivo kinematics.
Mots-clé
Algorithms, Equipment Failure Analysis/methods, Hip Joint/pathology, Hip Joint/physiopathology, Hip Prosthesis, Humans, Image Interpretation, Computer-Assisted/methods, Movement, Range of Motion, Articular, Reproducibility of Results, Sensitivity and Specificity
Pubmed
Web of science
Création de la notice
26/08/2014 19:59
Dernière modification de la notice
20/08/2019 13:34
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