Dynamic in-vivo tibio-femoral and bearing motions in mobile bearing knee arthroplasty

To determine the tibio-femoral and bearing motions in well functioning mobile bearing total knee arthroplasties, a quantitative analysis by means of fluoroscopy was carried out during stair ascending, chair rising-sitting and step up-down motor tasks. Femoral and tibial component positions were obta...

Full description

Saved in:
Bibliographic Details
Published inKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA Vol. 12; no. 2; pp. 144 - 151
Main Authors Fantozzi, S, Leardini, A, Banks, S A, Marcacci, M, Giannini, S, Catani, F
Format Journal Article
LanguageEnglish
Published Germany Springer Nature B.V 01.03.2004
Subjects
Activities of Daily Living
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee
Biomechanical Phenomena
Female
Femur - physiology
Fluoroscopy
Humans
Imaging, Three-Dimensional
Joint surgery
Knee
Knee Prosthesis
Male
Prosthesis Design
Rotation
Task Performance and Analysis
Tibia - physiology
Weight-Bearing - physiology
Online AccessGet full text

Cover

More Information
Summary:To determine the tibio-femoral and bearing motions in well functioning mobile bearing total knee arthroplasties, a quantitative analysis by means of fluoroscopy was carried out during stair ascending, chair rising-sitting and step up-down motor tasks. Femoral and tibial component positions were obtained using a CAD-model-based shape matching technique. Direct measurement of mobile bearing motion was carried out by tracking previously inserted tantalum beads. A relatively small motion of the bearing was observed. The advantage of self-alignment claimed for the mobile bearing arthroplasty seems to be confirmed by subject-specific ranges of motion exhibited by these patients. It has also been demonstrated that these total knee arthroplasties, which are not fully conforming in flexion, provide little constraint to antero-posterior motion, leading to a kinematic pattern very similar to an ACL deficient knee.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0942-2056
1433-7347
DOI:10.1007/s00167-003-0384-5