Prediction model for an early revision for dislocation after primary total hip arthroplasty

Dislocation is one of the most common complications after primary total hip arthroplasty (THA). Several patient-related risk factors for dislocation have been reported in the previous literature, but only few prediction models for dislocation have been made. Our aim was to build a prediction model f...

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Main Authors: Oskari Pakarinen, Mari Karsikas, Aleksi Reito, Olli Lainiala, Perttu Neuvonen, Antti Eskelinen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462822/?tool=EBI
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author Oskari Pakarinen
Mari Karsikas
Aleksi Reito
Olli Lainiala
Perttu Neuvonen
Antti Eskelinen
author_facet Oskari Pakarinen
Mari Karsikas
Aleksi Reito
Olli Lainiala
Perttu Neuvonen
Antti Eskelinen
author_sort Oskari Pakarinen
collection DOAJ
description Dislocation is one of the most common complications after primary total hip arthroplasty (THA). Several patient-related risk factors for dislocation have been reported in the previous literature, but only few prediction models for dislocation have been made. Our aim was to build a prediction model for an early (within the first 2 years) revision for dislocation after primary THA using two different statistical methods. The study data constituted of 37 pre- or perioperative variables and postoperative follow-up data of 16 454 primary THAs performed at our institution in 2008–2021. Model I was a traditional logistic regression model and Model II was based on the elastic net method that utilizes machine learning. The models’ overall performance was measured using the pseudo R2 values. The discrimination of the models was measured using C-index in Model I and Area Under the Curve (AUC) in Model II. Calibration curves were made for both models. At 2 years postoperatively, 95 hips (0.6% prevalence) had been revised for dislocation. The pseudo R2 values were 0.04 in Model I and 0.02 in Model II indicating low predictive capability in both models. The C-index in Model I was 0.67 and the AUC in Model II was 0.73 indicating modest discrimination. The prediction of an early revision for dislocation after primary THA is difficult even in a large cohort of patients with detailed data available because of the reasonably low prevalence and multifactorial nature of dislocation. Therefore, the risk of dislocation should be kept in mind in every primary THA, whether the patient has predisposing factors for dislocation or not. Further, when conducting a prediction model, sophisticated methods that utilize machine learning may not necessarily offer significant advantage over traditional statistical methods in clinical setup.
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spelling doaj.art-69d14f0a3f4b427fb0a3a7b5c8527e282022-12-22T04:26:11ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01179Prediction model for an early revision for dislocation after primary total hip arthroplastyOskari PakarinenMari KarsikasAleksi ReitoOlli LainialaPerttu NeuvonenAntti EskelinenDislocation is one of the most common complications after primary total hip arthroplasty (THA). Several patient-related risk factors for dislocation have been reported in the previous literature, but only few prediction models for dislocation have been made. Our aim was to build a prediction model for an early (within the first 2 years) revision for dislocation after primary THA using two different statistical methods. The study data constituted of 37 pre- or perioperative variables and postoperative follow-up data of 16 454 primary THAs performed at our institution in 2008–2021. Model I was a traditional logistic regression model and Model II was based on the elastic net method that utilizes machine learning. The models’ overall performance was measured using the pseudo R2 values. The discrimination of the models was measured using C-index in Model I and Area Under the Curve (AUC) in Model II. Calibration curves were made for both models. At 2 years postoperatively, 95 hips (0.6% prevalence) had been revised for dislocation. The pseudo R2 values were 0.04 in Model I and 0.02 in Model II indicating low predictive capability in both models. The C-index in Model I was 0.67 and the AUC in Model II was 0.73 indicating modest discrimination. The prediction of an early revision for dislocation after primary THA is difficult even in a large cohort of patients with detailed data available because of the reasonably low prevalence and multifactorial nature of dislocation. Therefore, the risk of dislocation should be kept in mind in every primary THA, whether the patient has predisposing factors for dislocation or not. Further, when conducting a prediction model, sophisticated methods that utilize machine learning may not necessarily offer significant advantage over traditional statistical methods in clinical setup.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462822/?tool=EBI
spellingShingle Oskari Pakarinen
Mari Karsikas
Aleksi Reito
Olli Lainiala
Perttu Neuvonen
Antti Eskelinen
Prediction model for an early revision for dislocation after primary total hip arthroplasty
PLoS ONE
title Prediction model for an early revision for dislocation after primary total hip arthroplasty
title_full Prediction model for an early revision for dislocation after primary total hip arthroplasty
title_fullStr Prediction model for an early revision for dislocation after primary total hip arthroplasty
title_full_unstemmed Prediction model for an early revision for dislocation after primary total hip arthroplasty
title_short Prediction model for an early revision for dislocation after primary total hip arthroplasty
title_sort prediction model for an early revision for dislocation after primary total hip arthroplasty
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462822/?tool=EBI
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