Flexion following hip resurfacing and factors that influence it.

Flexion following arthroplasty of the hip is important for activities of daily living. Studies have highlighted a possible reduction in flexion following Metal-on-Metal Hip Resurfacing Arthroplasty (MoMHRA) but failed to account for inter-subject variability and the possible etiology for this reduct...

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Main Authors: Grammatopoulos, G, Philpott, A, Reilly, K, Pandit, H, Barker, K, Murray, D, Gill, H
Format: Journal article
Language:English
Published: 2012
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author Grammatopoulos, G
Philpott, A
Reilly, K
Pandit, H
Barker, K
Murray, D
Gill, H
author_facet Grammatopoulos, G
Philpott, A
Reilly, K
Pandit, H
Barker, K
Murray, D
Gill, H
author_sort Grammatopoulos, G
collection OXFORD
description Flexion following arthroplasty of the hip is important for activities of daily living. Studies have highlighted a possible reduction in flexion following Metal-on-Metal Hip Resurfacing Arthroplasty (MoMHRA) but failed to account for inter-subject variability and the possible etiology for this reduction. This in vivo study aims to determine whether flexion is restored following MoMHRA and identify factors that influence it. Charnley Class A patients (n=112) that underwent MoMHRA were reviewed in a dedicated clinic assessing flexion (resurfaced and contra-lateral hips) and outcome. The difference in flexion between both hips was defined as flexion deficit (δflexion). Various patient (age, gender, BMI) and surgical (component orientation, size, head-neck-ratio, offset) factors were examined in terms of their effect on δflexion. MoMHRA-hips had significantly reduced flexion as compared to the native hips. This flexion-deficit correlated with contra-lateral maximum flexion, component size, head-neck-ratio and component orientation. The findings demonstrate that flexion following MoMHRA is strongly correlated to but is reduced in comparison to the native, disease-free, hip flexion. Surgical practice can minimise flexion-deficit and optimise function.
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spelling oxford-uuid:86799911-d3a2-415f-b936-fc6c19ff6ed12022-03-26T22:04:14ZFlexion following hip resurfacing and factors that influence it.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:86799911-d3a2-415f-b936-fc6c19ff6ed1EnglishSymplectic Elements at Oxford2012Grammatopoulos, GPhilpott, AReilly, KPandit, HBarker, KMurray, DGill, HFlexion following arthroplasty of the hip is important for activities of daily living. Studies have highlighted a possible reduction in flexion following Metal-on-Metal Hip Resurfacing Arthroplasty (MoMHRA) but failed to account for inter-subject variability and the possible etiology for this reduction. This in vivo study aims to determine whether flexion is restored following MoMHRA and identify factors that influence it. Charnley Class A patients (n=112) that underwent MoMHRA were reviewed in a dedicated clinic assessing flexion (resurfaced and contra-lateral hips) and outcome. The difference in flexion between both hips was defined as flexion deficit (δflexion). Various patient (age, gender, BMI) and surgical (component orientation, size, head-neck-ratio, offset) factors were examined in terms of their effect on δflexion. MoMHRA-hips had significantly reduced flexion as compared to the native hips. This flexion-deficit correlated with contra-lateral maximum flexion, component size, head-neck-ratio and component orientation. The findings demonstrate that flexion following MoMHRA is strongly correlated to but is reduced in comparison to the native, disease-free, hip flexion. Surgical practice can minimise flexion-deficit and optimise function.
spellingShingle Grammatopoulos, G
Philpott, A
Reilly, K
Pandit, H
Barker, K
Murray, D
Gill, H
Flexion following hip resurfacing and factors that influence it.
title Flexion following hip resurfacing and factors that influence it.
title_full Flexion following hip resurfacing and factors that influence it.
title_fullStr Flexion following hip resurfacing and factors that influence it.
title_full_unstemmed Flexion following hip resurfacing and factors that influence it.
title_short Flexion following hip resurfacing and factors that influence it.
title_sort flexion following hip resurfacing and factors that influence it
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AT reillyk flexionfollowinghipresurfacingandfactorsthatinfluenceit
AT pandith flexionfollowinghipresurfacingandfactorsthatinfluenceit
AT barkerk flexionfollowinghipresurfacingandfactorsthatinfluenceit
AT murrayd flexionfollowinghipresurfacingandfactorsthatinfluenceit
AT gillh flexionfollowinghipresurfacingandfactorsthatinfluenceit