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The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture

INTRODUCTION: The Olerud Molander Ankle Score (OMAS) is a widely used validated Patient Reported Outcome Measure (PROM). For clinical research, it is important to determine the Minimal Clinically Important Difference (MCID). The objective of this study was to determine the MCID of the OMAS at severa...

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Autores principales: Penning, Diederick, Kleipool, Suzanne, van Dieren, Susan, Dingemans, Siem M., Schepers, Tim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10192184/
https://www.ncbi.nlm.nih.gov/pubmed/35821429
http://dx.doi.org/10.1007/s00402-022-04533-y
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author Penning, Diederick
Kleipool, Suzanne
van Dieren, Susan
Dingemans, Siem M.
Schepers, Tim
author_facet Penning, Diederick
Kleipool, Suzanne
van Dieren, Susan
Dingemans, Siem M.
Schepers, Tim
author_sort Penning, Diederick
collection PubMed
description INTRODUCTION: The Olerud Molander Ankle Score (OMAS) is a widely used validated Patient Reported Outcome Measure (PROM). For clinical research, it is important to determine the Minimal Clinically Important Difference (MCID). The objective of this study was to determine the MCID of the OMAS at several moments in the follow-up, in a cohort of patients that underwent open reduction and internal fixation of unstable ankle fractures with syndesmotic injury. MATERIALS AND METHODS: Data for this descriptive study were extracted from a prospective randomized controlled trial, the RODEO trial. The Dutch version of the OMAS was completed at 3, 6 and 12-month follow-up and estimated at baseline. The used anchor-based methods were: mean change and ROC curve. The distribution-based methods were: 0.5SD and minimal detectable change (MDC). RESULTS: This cohort included 148 patients. The mean OMAS score in the group with minimal improvement between 3 and 6 months was 15.0 (SD 17.5, 95%CI 9.4–20.6) and between 6 and 12 months 9.5 (SD 17.1, 95% CI 3.1–15.9). The ROC curve between 3 and 6 months resulted in a MCID of 12.5 (AUC 0.72) and between 6 and 12 months, the MCID was 7.5 (AUC 0.78). Using 0.5 SD, the MCID was 10.52 (SD 21.04) at 3 months, 11.37 (SD 22.73) at 6 months and 10.47 (SD 20.94) at 12 months. The MDC was 4.72 at 3 months, 5.20 at 6 months and 4.71 at 12 months. CONCLUSIONS: The calculated MCID in patients following surgery for unstable ankle fractures ranges from 10.5 to 15.0 at 3–6-month follow-up and from 7.5 to 11.4 at 6–12-month follow-up, depending on moment and method.
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spelling pubmed-101921842023-05-19 The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture Penning, Diederick Kleipool, Suzanne van Dieren, Susan Dingemans, Siem M. Schepers, Tim Arch Orthop Trauma Surg Trauma Surgery INTRODUCTION: The Olerud Molander Ankle Score (OMAS) is a widely used validated Patient Reported Outcome Measure (PROM). For clinical research, it is important to determine the Minimal Clinically Important Difference (MCID). The objective of this study was to determine the MCID of the OMAS at several moments in the follow-up, in a cohort of patients that underwent open reduction and internal fixation of unstable ankle fractures with syndesmotic injury. MATERIALS AND METHODS: Data for this descriptive study were extracted from a prospective randomized controlled trial, the RODEO trial. The Dutch version of the OMAS was completed at 3, 6 and 12-month follow-up and estimated at baseline. The used anchor-based methods were: mean change and ROC curve. The distribution-based methods were: 0.5SD and minimal detectable change (MDC). RESULTS: This cohort included 148 patients. The mean OMAS score in the group with minimal improvement between 3 and 6 months was 15.0 (SD 17.5, 95%CI 9.4–20.6) and between 6 and 12 months 9.5 (SD 17.1, 95% CI 3.1–15.9). The ROC curve between 3 and 6 months resulted in a MCID of 12.5 (AUC 0.72) and between 6 and 12 months, the MCID was 7.5 (AUC 0.78). Using 0.5 SD, the MCID was 10.52 (SD 21.04) at 3 months, 11.37 (SD 22.73) at 6 months and 10.47 (SD 20.94) at 12 months. The MDC was 4.72 at 3 months, 5.20 at 6 months and 4.71 at 12 months. CONCLUSIONS: The calculated MCID in patients following surgery for unstable ankle fractures ranges from 10.5 to 15.0 at 3–6-month follow-up and from 7.5 to 11.4 at 6–12-month follow-up, depending on moment and method. Springer Berlin Heidelberg 2022-07-11 2023 /pmc/articles/PMC10192184/ /pubmed/35821429 http://dx.doi.org/10.1007/s00402-022-04533-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Trauma Surgery
Penning, Diederick
Kleipool, Suzanne
van Dieren, Susan
Dingemans, Siem M.
Schepers, Tim
The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title_full The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title_fullStr The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title_full_unstemmed The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title_short The minimal clinically important difference (MCID) of the Olerud Molander Ankle Score (OMAS) in patients with unstable ankle fracture
title_sort minimal clinically important difference (mcid) of the olerud molander ankle score (omas) in patients with unstable ankle fracture
topic Trauma Surgery
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10192184/
https://www.ncbi.nlm.nih.gov/pubmed/35821429
http://dx.doi.org/10.1007/s00402-022-04533-y
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