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Arthroscopic partial meniscectomy for the degenerative meniscus tear : a comparison of patients included in RCTs and prospective cohort studies

Wijn, Stan R.W. ; Hannink, Gerjon ; Thorlund, Jonas B. ; Sihvonen, Raine ; Englund, Martin LU orcid and Rovers, Maroeska M. (2023) In Acta Orthopaedica 94. p.570-576
Abstract

Background and purpose — Concerns exist regarding the generalizability of results from randomized controlled trials (RCTs) evaluating arthroscopic partial meniscectomy (APM) to treat degenerative meniscus tears. It has been suggested that study populations are not representative of subjects selected for surgery in daily clinical practice. There-fore, we aimed to compare patients included in trials and prospective cohort studies that received APM for a degenerative meniscus tear. Patients and methods — Individual participant data from 4 RCTs and 2 cohort studies undergoing APM were collected. 1,970 patients were analyzed: 605 patients included in RCTs and 1,365 included in the cohorts. We compared patient and disease characteristics,... (More)

Background and purpose — Concerns exist regarding the generalizability of results from randomized controlled trials (RCTs) evaluating arthroscopic partial meniscectomy (APM) to treat degenerative meniscus tears. It has been suggested that study populations are not representative of subjects selected for surgery in daily clinical practice. There-fore, we aimed to compare patients included in trials and prospective cohort studies that received APM for a degenerative meniscus tear. Patients and methods — Individual participant data from 4 RCTs and 2 cohort studies undergoing APM were collected. 1,970 patients were analyzed: 605 patients included in RCTs and 1,365 included in the cohorts. We compared patient and disease characteristics, knee pain, overall knee function, and health-related quality of life at baseline between the RCT and cohort groups using standardized differences, ratios comparing the variance of continuous covariates, and graphical methods such as quantile–quantile plots, side-by-side boxplots, and non-parametric density plots. Results — Differences between RCT and the cohort were observed primarily in age (younger patients in the cohort; standardized difference: 0.32) and disease severity, with the RCT group having more severe symptoms (standardized difference: 0.38). While knee pain, overall knee function, and quality of life generally showed minimal differences between the 2 groups, it is noteworthy that the largest observed difference was in knee pain, where the cohort group scored 7 points worse (95% confidence interval 5–9, standardized difference: 0.29). Conclusion — Patients in RCTs were largely representative of those in cohort studies regarding baseline scores, though variations in age and disease severity were observed. Younger patients with less severe osteoarthritis were more common in the cohort; however, trial participants still appear to be broadly representative of the target population.

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type
Contribution to journal
publication status
published
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in
Acta Orthopaedica
volume
94
pages
7 pages
publisher
Taylor & Francis
external identifiers
  • pmid:38037388
  • scopus:85178929803
ISSN
1745-3674
DOI
10.2340/17453674.2023.24576
language
English
LU publication?
yes
id
4d1f6a9b-b9f9-438d-8459-221f206b68e6
date added to LUP
2024-01-11 13:39:21
date last changed
2024-04-12 07:29:26
@article{4d1f6a9b-b9f9-438d-8459-221f206b68e6,
  abstract     = {{<p>Background and purpose — Concerns exist regarding the generalizability of results from randomized controlled trials (RCTs) evaluating arthroscopic partial meniscectomy (APM) to treat degenerative meniscus tears. It has been suggested that study populations are not representative of subjects selected for surgery in daily clinical practice. There-fore, we aimed to compare patients included in trials and prospective cohort studies that received APM for a degenerative meniscus tear. Patients and methods — Individual participant data from 4 RCTs and 2 cohort studies undergoing APM were collected. 1,970 patients were analyzed: 605 patients included in RCTs and 1,365 included in the cohorts. We compared patient and disease characteristics, knee pain, overall knee function, and health-related quality of life at baseline between the RCT and cohort groups using standardized differences, ratios comparing the variance of continuous covariates, and graphical methods such as quantile–quantile plots, side-by-side boxplots, and non-parametric density plots. Results — Differences between RCT and the cohort were observed primarily in age (younger patients in the cohort; standardized difference: 0.32) and disease severity, with the RCT group having more severe symptoms (standardized difference: 0.38). While knee pain, overall knee function, and quality of life generally showed minimal differences between the 2 groups, it is noteworthy that the largest observed difference was in knee pain, where the cohort group scored 7 points worse (95% confidence interval 5–9, standardized difference: 0.29). Conclusion — Patients in RCTs were largely representative of those in cohort studies regarding baseline scores, though variations in age and disease severity were observed. Younger patients with less severe osteoarthritis were more common in the cohort; however, trial participants still appear to be broadly representative of the target population.</p>}},
  author       = {{Wijn, Stan R.W. and Hannink, Gerjon and Thorlund, Jonas B. and Sihvonen, Raine and Englund, Martin and Rovers, Maroeska M.}},
  issn         = {{1745-3674}},
  language     = {{eng}},
  pages        = {{570--576}},
  publisher    = {{Taylor & Francis}},
  series       = {{Acta Orthopaedica}},
  title        = {{Arthroscopic partial meniscectomy for the degenerative meniscus tear : a comparison of patients included in RCTs and prospective cohort studies}},
  url          = {{http://dx.doi.org/10.2340/17453674.2023.24576}},
  doi          = {{10.2340/17453674.2023.24576}},
  volume       = {{94}},
  year         = {{2023}},
}