Document Detail


Joint stiffness of the ankle during walking after successful mobile-bearing total ankle replacement.
MedLine Citation:
PMID:  17462899     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: It has been shown that walking kinematics remain near to normal after mobile bearing total ankle replacement (TAR). However, no information is available on mechanical joint loading. The purpose of this study was to determine whether mechanical load and 'quasi-stiffness' of the ankle joint after TAR differs from the normal load and stiffness of a healthy ankle joint during walking. METHODS: Ten TAR patients and 10 age-matched healthy control subjects (CO) participated in this study. Participants walked barefooted on an indoor track at self-selected walking speed. 3D ankle kinematics and ground reaction force were measured and used for the calculation of 3D net joint moments, joint quasi-stiffness coefficients and internal net joint ankle work. RESULTS: Between patients and control subjects no differences were observed in peak moments and stiffness coefficient at the ankle. Internal work at the ankle during the step differed however, significantly (-0.078 (0.088) J kg(-1) versus 0.005 (0.048) J kg(-1) for TAR versus CO, p=0.02), although it could be argued that this difference was due to a minor difference in walking speed between both groups (1.02 (0.07) versus 1.09 (0.07) for TAR versus CO, p=0.02). CONCLUSION: Despite the small difference in internal work at the ankle, there was no significant difference in mechanical loading of the ankle after TAR compared to normal.
Authors:
Han Houdijk; H Cornelis Doets; Marienke van Middelkoop; H E J Dirkjan Veeger
Related Documents :
9184689 - Balance control during walking in the older adult: research and its implications.
19856549 - Population representative gait speed and its determinants.
2754159 - The effect of visual deprivation and proprioceptive change on postural sway in healthy ...
1827539 - Variations in balance and body sway in middle-aged adults. subjects with healthy backs ...
20859069 - The relationships among gait and mobility under single and dual task conditions in comm...
14969989 - An analysis of sap flow in mountain ash (eucalyptus regnans) forests of different age.
24271419 - Mercury in bats from the northeastern united states.
18408349 - Evaluation of the effects of shift work on nutrient intake: a cross-sectional study.
22888369 - Linking process and outcome in the study of emotion and aging.
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2007-04-25
Journal Detail:
Title:  Gait & posture     Volume:  27     ISSN:  0966-6362     ISO Abbreviation:  Gait Posture     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2007-12-18     Completed Date:  2008-04-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9416830     Medline TA:  Gait Posture     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  115-9     Citation Subset:  IM    
Affiliation:
Institute for Fundamental and Clinical Movement Sciences, and MOVE Interdepartmental Research Initiative, Vrije Universiteit, Amsterdam, The Netherlands. h.houdijk@fbw.vu.nl
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Ankle Joint / physiology,  surgery*
Arthritis / surgery
Arthritis, Rheumatoid / surgery
Arthroplasty, Replacement*
Biomechanics
Case-Control Studies
Female
Gait / physiology
Humans
Imaging, Three-Dimensional
Joint Prosthesis
Male
Middle Aged
Range of Motion, Articular / physiology
Rotation
Walking / physiology*
Weight-Bearing / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Mutation of Drosophila Lsd1 disrupts H3-K4 methylation, resulting in tissue-specific defects during ...
Next Document:  Terminal syringomyelia communicating with a spinal dermal sinus.