Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis

Background and purpose — Femoral neck fractures (FNFs) are commonly treated with some kind of arthroplasty, but evidence on whether to use hemiarthroplasty (HA) or total hip arthroplasty (THA) is lacking. HA reduces the risk of dislocation, but may lead to acetabular erosion. THA implies longer surg...

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Main Authors: Susanne Hansson, Szilard Nemes, Johan Kärrholm, Cecilia Rogmark
Format: Article
Language:English
Published: Medical Journals Sweden 2017-09-01
Series:Acta Orthopaedica
Online Access:http://dx.doi.org/10.1080/17453674.2017.1348095
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author Susanne Hansson
Szilard Nemes
Johan Kärrholm
Cecilia Rogmark
author_facet Susanne Hansson
Szilard Nemes
Johan Kärrholm
Cecilia Rogmark
author_sort Susanne Hansson
collection DOAJ
description Background and purpose — Femoral neck fractures (FNFs) are commonly treated with some kind of arthroplasty, but evidence on whether to use hemiarthroplasty (HA) or total hip arthroplasty (THA) is lacking. HA reduces the risk of dislocation, but may lead to acetabular erosion. THA implies longer surgery and increased bleeding. THA may result in better function and health-related quality of life, but evidence is contradictory. We compared HA and THA and in terms of revision, reoperation and death. Patients and methods — Data were extracted from the Swedish Hip Arthroplasty Register for 11,253 patients with acute FNF receiving cemented HA or THA during 2008–2012. 2,902 patients with THA were matched by propensity score matching with as many patients with HA based on age, sex, BMI, and ASA classification. We used competing risks survival regression with reoperation or death and revision or death as endpoints. Results — THA patients had significantly reduced risk of revision (absolute risk reduction 0.51; 95% CI 0.39–0.67) and reoperation (0.58; 0.46–0.74). THA was associated with an almost 50% reduced mortality (risk ratio as competing risk for reoperation 0.51; 0.46–0.57). Interpretation — In our national register study of femoral neck fractures, THA had a lower risk than HA for further surgical procedures related to the hip. The reasons for lower mortality after THA are not known. Despite matching, there might be a selection of more healthy patients for this procedure, and other factors unknown to us, with or without relation to the choice of implant.
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spelling doaj.art-4c2b491cac494ac3a57b5ada133bdf902022-12-22T00:15:10ZengMedical Journals SwedenActa Orthopaedica1745-36741745-36822017-09-0188550050410.1080/17453674.2017.13480951348095Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysisSusanne Hansson0Szilard Nemes1Johan Kärrholm2Cecilia Rogmark3Lund University, Skåne University HospitalThe Swedish Hip Arthroplasty Register, Registercentrum VGRThe Swedish Hip Arthroplasty Register, Registercentrum VGRLund University, Skåne University HospitalBackground and purpose — Femoral neck fractures (FNFs) are commonly treated with some kind of arthroplasty, but evidence on whether to use hemiarthroplasty (HA) or total hip arthroplasty (THA) is lacking. HA reduces the risk of dislocation, but may lead to acetabular erosion. THA implies longer surgery and increased bleeding. THA may result in better function and health-related quality of life, but evidence is contradictory. We compared HA and THA and in terms of revision, reoperation and death. Patients and methods — Data were extracted from the Swedish Hip Arthroplasty Register for 11,253 patients with acute FNF receiving cemented HA or THA during 2008–2012. 2,902 patients with THA were matched by propensity score matching with as many patients with HA based on age, sex, BMI, and ASA classification. We used competing risks survival regression with reoperation or death and revision or death as endpoints. Results — THA patients had significantly reduced risk of revision (absolute risk reduction 0.51; 95% CI 0.39–0.67) and reoperation (0.58; 0.46–0.74). THA was associated with an almost 50% reduced mortality (risk ratio as competing risk for reoperation 0.51; 0.46–0.57). Interpretation — In our national register study of femoral neck fractures, THA had a lower risk than HA for further surgical procedures related to the hip. The reasons for lower mortality after THA are not known. Despite matching, there might be a selection of more healthy patients for this procedure, and other factors unknown to us, with or without relation to the choice of implant.http://dx.doi.org/10.1080/17453674.2017.1348095
spellingShingle Susanne Hansson
Szilard Nemes
Johan Kärrholm
Cecilia Rogmark
Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
Acta Orthopaedica
title Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
title_full Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
title_fullStr Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
title_full_unstemmed Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
title_short Reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty: A matched pair analysis
title_sort reduced risk of reoperation after treatment of femoral neck fractures with total hip arthroplasty a matched pair analysis
url http://dx.doi.org/10.1080/17453674.2017.1348095
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