Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study
Purpose. To evaluate risk factors for early dislocation after primary total hip arthroplasty (THA). Methods. Records of 175 cases with dislocation during hospitalisation after THA and 651 controls without dislocation were reviewed. Cases and controls were matched for age, gender, body mass index cla...
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doaj-59abe6e0608345b985733e971d8cdd9e2020-11-25T03:15:36ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902010-08-011810.1177/230949901001800209Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control StudyMarcel Dudda0A Gueleryuez1E Gautier2A Busato3C Roeder4 Department of Orthopaedic Surgery, Inselspital Berne, University of Berne, Switzerland Orthopaedic Department, Hopital cantonal Fribourg, Fribourg, Switzerland Orthopaedic Department, Hopital cantonal Fribourg, Fribourg, Switzerland Maurice E Mueller Research Centre in Orthopaedic Surgery, Institute for Evaluative Research in Orthopaedic Surgery, University of Berne, Switzerland Maurice E Mueller Research Centre in Orthopaedic Surgery, Institute for Evaluative Research in Orthopaedic Surgery, University of Berne, SwitzerlandPurpose. To evaluate risk factors for early dislocation after primary total hip arthroplasty (THA). Methods. Records of 175 cases with dislocation during hospitalisation after THA and 651 controls without dislocation were reviewed. Cases and controls were matched for age, gender, body mass index classification, primary diagnosis, cup design, hospital, and year of intervention. Version and inclination of the acetabular component and version of the femoral component were assessed intra- and post-operatively. Various risk factors were analysed, including surgical approach, cup positioning, combined cup and stem positioning, and femoral head size. Results. The posterior approach was 6 fold more prone to dislocation (odds ratio [OR]=6.3, p<0.018) than the anterolateral or straight lateral approach. With regard to combined cup and stem positioning, the acceptable position was at significantly higher risk of dislocation than the ideal position (OR=2.59, p=0.033). Larger femoral head sizes were associated with significantly lower risk of dislocation (OR=0.84, p=0.02). Conclusion. Surgical approach, combined cup and stem positioning, and femoral head size were significant risk factors for dislocation during hospitalisation.https://doi.org/10.1177/230949901001800209 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marcel Dudda A Gueleryuez E Gautier A Busato C Roeder |
spellingShingle |
Marcel Dudda A Gueleryuez E Gautier A Busato C Roeder Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study Journal of Orthopaedic Surgery |
author_facet |
Marcel Dudda A Gueleryuez E Gautier A Busato C Roeder |
author_sort |
Marcel Dudda |
title |
Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study |
title_short |
Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study |
title_full |
Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study |
title_fullStr |
Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study |
title_full_unstemmed |
Risk Factors for Early Dislocation after Total Hip Arthroplasty: A Matched Case-Control Study |
title_sort |
risk factors for early dislocation after total hip arthroplasty: a matched case-control study |
publisher |
SAGE Publishing |
series |
Journal of Orthopaedic Surgery |
issn |
2309-4990 |
publishDate |
2010-08-01 |
description |
Purpose. To evaluate risk factors for early dislocation after primary total hip arthroplasty (THA). Methods. Records of 175 cases with dislocation during hospitalisation after THA and 651 controls without dislocation were reviewed. Cases and controls were matched for age, gender, body mass index classification, primary diagnosis, cup design, hospital, and year of intervention. Version and inclination of the acetabular component and version of the femoral component were assessed intra- and post-operatively. Various risk factors were analysed, including surgical approach, cup positioning, combined cup and stem positioning, and femoral head size. Results. The posterior approach was 6 fold more prone to dislocation (odds ratio [OR]=6.3, p<0.018) than the anterolateral or straight lateral approach. With regard to combined cup and stem positioning, the acceptable position was at significantly higher risk of dislocation than the ideal position (OR=2.59, p=0.033). Larger femoral head sizes were associated with significantly lower risk of dislocation (OR=0.84, p=0.02). Conclusion. Surgical approach, combined cup and stem positioning, and femoral head size were significant risk factors for dislocation during hospitalisation. |
url |
https://doi.org/10.1177/230949901001800209 |
work_keys_str_mv |
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