High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients

Background and purpose — Most often, the goal of non-geriatric femoral neck fracture surgery is to preserve the native hip joint. However, reoperations for painful implants, osteonecrosis, and nonunion are common. We determined the reoperation rate and time-to-reoperation following internal fixation...

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Main Authors: David J Stockton, Lyndsay M O’Hara, Nathan N O’Hara, Kelly A Lefaivre, Peter J O’Brien, Gerard P Slobogean
Format: Article
Language:English
Published: Medical Journals Sweden 2019-01-01
Series:Acta Orthopaedica
Online Access:http://dx.doi.org/10.1080/17453674.2018.1558380
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author David J Stockton
Lyndsay M O’Hara
Nathan N O’Hara
Kelly A Lefaivre
Peter J O’Brien
Gerard P Slobogean
author_facet David J Stockton
Lyndsay M O’Hara
Nathan N O’Hara
Kelly A Lefaivre
Peter J O’Brien
Gerard P Slobogean
author_sort David J Stockton
collection DOAJ
description Background and purpose — Most often, the goal of non-geriatric femoral neck fracture surgery is to preserve the native hip joint. However, reoperations for painful implants, osteonecrosis, and nonunion are common. We determined the reoperation rate and time-to-reoperation following internal fixation of these fractures in a large population cohort. Patients and methods — This retrospective cohort study included patients between the ages of 18 and 50 years old who underwent internal fixation for a femoral neck fracture during 1997–2013. Patients were followed until December 2013. Primary outcomes were reoperation rate and time-to-reoperation. Time-to-event analysis was performed to estimate the rate of any reoperation and for THA specifically, while testing the dependency of time-to-reoperation on secondary variables. Results — 796 young femoral neck fracture patients were treated with internal fixation during the study period (median age 43 years, 39% women). Median follow-up was 8 years (IQR 4–13). One-third underwent at least 1 reoperation at a median 16 months after the index surgery (IQR 8–31). Half of reoperations were for implant removal, followed by conversion to total hip arthroplasty. 14% of the cohort were converted to THA. The median time to conversion was 2 years (IQR 1–4). Neither female sex nor older age had a statistically significant effect on time-to-reoperation or time-to-THA conversion. Interpretation — Following internal fixation of young femoral neck fracture, 1 in 3 patients required a reoperation, and 1 in 7 were converted to THA. These data should be considered by patients and surgeons during treatment decision-making.
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spelling doaj.art-4fbe38cad789477aacc50e91d7acf5222022-12-22T04:13:47ZengMedical Journals SwedenActa Orthopaedica1745-36741745-36822019-01-01901212510.1080/17453674.2018.15583801558380High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patientsDavid J Stockton0Lyndsay M O’Hara1Nathan N O’Hara2Kelly A Lefaivre3Peter J O’Brien4Gerard P Slobogean5University of British ColumbiaUniversity of MarylandUniversity of Maryland, R Adams Cowley Shock Trauma CenterUniversity of British ColumbiaUniversity of British ColumbiaUniversity of Maryland, R Adams Cowley Shock Trauma CenterBackground and purpose — Most often, the goal of non-geriatric femoral neck fracture surgery is to preserve the native hip joint. However, reoperations for painful implants, osteonecrosis, and nonunion are common. We determined the reoperation rate and time-to-reoperation following internal fixation of these fractures in a large population cohort. Patients and methods — This retrospective cohort study included patients between the ages of 18 and 50 years old who underwent internal fixation for a femoral neck fracture during 1997–2013. Patients were followed until December 2013. Primary outcomes were reoperation rate and time-to-reoperation. Time-to-event analysis was performed to estimate the rate of any reoperation and for THA specifically, while testing the dependency of time-to-reoperation on secondary variables. Results — 796 young femoral neck fracture patients were treated with internal fixation during the study period (median age 43 years, 39% women). Median follow-up was 8 years (IQR 4–13). One-third underwent at least 1 reoperation at a median 16 months after the index surgery (IQR 8–31). Half of reoperations were for implant removal, followed by conversion to total hip arthroplasty. 14% of the cohort were converted to THA. The median time to conversion was 2 years (IQR 1–4). Neither female sex nor older age had a statistically significant effect on time-to-reoperation or time-to-THA conversion. Interpretation — Following internal fixation of young femoral neck fracture, 1 in 3 patients required a reoperation, and 1 in 7 were converted to THA. These data should be considered by patients and surgeons during treatment decision-making.http://dx.doi.org/10.1080/17453674.2018.1558380
spellingShingle David J Stockton
Lyndsay M O’Hara
Nathan N O’Hara
Kelly A Lefaivre
Peter J O’Brien
Gerard P Slobogean
High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
Acta Orthopaedica
title High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
title_full High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
title_fullStr High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
title_full_unstemmed High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
title_short High rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures: a population-based study of 796 patients
title_sort high rate of reoperation and conversion to total hip arthroplasty after internal fixation of young femoral neck fractures a population based study of 796 patients
url http://dx.doi.org/10.1080/17453674.2018.1558380
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