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Hip arthroplasty for acute hip fracture in patients with neurological disorders : A report Of 9,702 cases from the Swedish arthroplasty register

Wojtowicz, Alex L. ; Al-Azzani, Waheeb ; Nåtman, Jonatan ; Rolfson, Ola ; Rogmark, Cecilia LU and Cnudde, Peter H.J. (2022) In Injury 53(3). p.1202-1208
Abstract

Introduction: The purpose of this study was to investigate neurological disorder as a risk factor for dislocation following arthroplasty for acute hip fractures. We also analysed medical and surgical adverse events (AE), readmission, reoperation, revision, and mortality as secondary outcomes. Methods: A longitudinal cohort study using prospectively collected and aggregated data from the Swedish Hip Arthroplasty Register (SHAR) and the Swedish national patient register. All patients presenting with an acute hip fracture and treated with an arthroplasty in the period from 2005 to 2014 from the SHAR were identified. Patients in receipt of bilateral arthroplasties were excluded. Patients with a relevant pre-existing and diagnosed... (More)

Introduction: The purpose of this study was to investigate neurological disorder as a risk factor for dislocation following arthroplasty for acute hip fractures. We also analysed medical and surgical adverse events (AE), readmission, reoperation, revision, and mortality as secondary outcomes. Methods: A longitudinal cohort study using prospectively collected and aggregated data from the Swedish Hip Arthroplasty Register (SHAR) and the Swedish national patient register. All patients presenting with an acute hip fracture and treated with an arthroplasty in the period from 2005 to 2014 from the SHAR were identified. Patients in receipt of bilateral arthroplasties were excluded. Patients with a relevant pre-existing and diagnosed neurological disorder, as defined by ICD-10 codes, were identified (n = 9,702). All other cases (n = 29,411) were available for logistic regression propensity score matching. Patients were 1:1 matched on age, sex, Charlson comorbidity index, total versus hemiarthroplasty, head size, surgical approach, and year of surgery. Dislocations, adverse events, readmission, reoperation, revision, and mortality were studied using Kaplan-Meier analysis and Cox regression. Results: The risk of dislocations was higher for patients with neurological disorder (HR=1.19, CI 1.03- 1.39, p<0.05). Neurological disorder was associated with increased risk of encountering an adverse event (p<0.001 at 90-days); these patients were at higher risk of dying (HR=1.51, CI 1.47–1.56, p<0.001) however they were less likely to be readmitted (HR=0.73, CI 0.70- 0.76, p<0.001). No excess risks of reoperation (HR=1.02, CI 0.90–1.17; p = 0.73) or revision (HR=1.00, CI 0.86–1.17; p = 0.99) were identified in the study group. Discussion: Compared to matched controls, individuals with a preoperatively identified neurological diagnosis had higher rates of mortality, dislocations, and adverse events, but this cohort was not at increased risk of reoperation or revision. This study highlights an area of focus for future research to improve the long-term outcomes in patients with neurological disease undergoing arthroplasty for an acute hip fracture.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Arthroplasty, Dislocation, Hip fracture, Neurological disorder, Outcome, Register
in
Injury
volume
53
issue
3
pages
1202 - 1208
publisher
Elsevier
external identifiers
  • scopus:85116076753
  • pmid:34602245
ISSN
0020-1383
DOI
10.1016/j.injury.2021.09.028
language
English
LU publication?
no
additional info
Publisher Copyright: © 2021 Elsevier Ltd
id
cd0123b7-bd12-4f9e-aacb-e57754f4dec7
date added to LUP
2021-10-22 15:17:35
date last changed
2024-06-15 19:00:15
@article{cd0123b7-bd12-4f9e-aacb-e57754f4dec7,
  abstract     = {{<p>Introduction: The purpose of this study was to investigate neurological disorder as a risk factor for dislocation following arthroplasty for acute hip fractures. We also analysed medical and surgical adverse events (AE), readmission, reoperation, revision, and mortality as secondary outcomes. Methods: A longitudinal cohort study using prospectively collected and aggregated data from the Swedish Hip Arthroplasty Register (SHAR) and the Swedish national patient register. All patients presenting with an acute hip fracture and treated with an arthroplasty in the period from 2005 to 2014 from the SHAR were identified. Patients in receipt of bilateral arthroplasties were excluded. Patients with a relevant pre-existing and diagnosed neurological disorder, as defined by ICD-10 codes, were identified (n = 9,702). All other cases (n = 29,411) were available for logistic regression propensity score matching. Patients were 1:1 matched on age, sex, Charlson comorbidity index, total versus hemiarthroplasty, head size, surgical approach, and year of surgery. Dislocations, adverse events, readmission, reoperation, revision, and mortality were studied using Kaplan-Meier analysis and Cox regression. Results: The risk of dislocations was higher for patients with neurological disorder (HR=1.19, CI 1.03- 1.39, p&lt;0.05). Neurological disorder was associated with increased risk of encountering an adverse event (p&lt;0.001 at 90-days); these patients were at higher risk of dying (HR=1.51, CI 1.47–1.56, p&lt;0.001) however they were less likely to be readmitted (HR=0.73, CI 0.70- 0.76, p&lt;0.001). No excess risks of reoperation (HR=1.02, CI 0.90–1.17; p = 0.73) or revision (HR=1.00, CI 0.86–1.17; p = 0.99) were identified in the study group. Discussion: Compared to matched controls, individuals with a preoperatively identified neurological diagnosis had higher rates of mortality, dislocations, and adverse events, but this cohort was not at increased risk of reoperation or revision. This study highlights an area of focus for future research to improve the long-term outcomes in patients with neurological disease undergoing arthroplasty for an acute hip fracture.</p>}},
  author       = {{Wojtowicz, Alex L. and Al-Azzani, Waheeb and Nåtman, Jonatan and Rolfson, Ola and Rogmark, Cecilia and Cnudde, Peter H.J.}},
  issn         = {{0020-1383}},
  keywords     = {{Arthroplasty; Dislocation; Hip fracture; Neurological disorder; Outcome; Register}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{1202--1208}},
  publisher    = {{Elsevier}},
  series       = {{Injury}},
  title        = {{Hip arthroplasty for acute hip fracture in patients with neurological disorders : A report Of 9,702 cases from the Swedish arthroplasty register}},
  url          = {{http://dx.doi.org/10.1016/j.injury.2021.09.028}},
  doi          = {{10.1016/j.injury.2021.09.028}},
  volume       = {{53}},
  year         = {{2022}},
}