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...
Main Authors: | , , , , , , |
---|---|
Format: | Journal article |
Language: | English |
Published: |
2012
|
_version_ | 1797079818856038400 |
---|---|
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. |
first_indexed | 2024-03-07T00:51:14Z |
format | Journal article |
id | oxford-uuid:86799911-d3a2-415f-b936-fc6c19ff6ed1 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T00:51:14Z |
publishDate | 2012 |
record_format | dspace |
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 |
work_keys_str_mv | AT grammatopoulosg flexionfollowinghipresurfacingandfactorsthatinfluenceit AT philpotta flexionfollowinghipresurfacingandfactorsthatinfluenceit AT reillyk flexionfollowinghipresurfacingandfactorsthatinfluenceit AT pandith flexionfollowinghipresurfacingandfactorsthatinfluenceit AT barkerk flexionfollowinghipresurfacingandfactorsthatinfluenceit AT murrayd flexionfollowinghipresurfacingandfactorsthatinfluenceit AT gillh flexionfollowinghipresurfacingandfactorsthatinfluenceit |