ICON 2020—International Scientific Tendinopathy Symposium Consensus: A Systematic Review of Outcome Measures Reported in Clinical Trials of Achilles Tendinopathy

Karin Grävare Silbernagel*, Peter Malliaras, Robert Jan de Vos, Shawn Hanlon, Mitchel Molenaar, Håkan Alfredson, Inge van den Akker-Scheek, Jarrod Antflick, Mathijs van Ark, Kenneth Färnqvist, Zubair Haleem, Jean Francois Kaux, Paul Kirwan, Bhavesh Kumar, Trevor Lewis, Adrian Mallows, Lorenzo Masci, Dylan Morrissey, Myles Murphy, Richard Newsham-WestRichard Norris, Seth O’Neill, Koen Peers, Igor Sancho, Kayla Seymore, Patrick Vallance, Arco van der Vlist, Bill Vicenzino

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review

16 Citations (Scopus)

Abstract

Background: Nine core domains for tendinopathy have been identified. For Achilles tendinopathy there is large variation in outcome measures used, and how these fit into the core domains has not been investigated. Objective: To identify all available outcome measures outcome measures used to assess the clinical phenotype of Achilles tendinopathy in prospective studies and to map the outcomes measures into predefined health-related core domains. Design: Systematic review. Data Sources: Embase, MEDLINE (Ovid), Web of Science, CINAHL, The Cochrane Library, SPORTDiscus and Google Scholar. Eligibility Criteria for Selecting Studies: Clinical diagnosis of Achilles tendinopathy, sample size ≥ ten participants, age ≥ 16 years, and the study design was a randomized or non-randomized clinical trial, observational cohort, single-arm intervention, or case series. Results: 9376 studies were initially screened and 307 studies were finally included, totaling 13,248 participants. There were 233 (177 core domain) different outcome measures identified across all domains. For each core domain outcome measures were identified, with a range between 8 and 35 unique outcome measures utilized for each domain. The proportion of studies that included outcomes for predefined core domains ranged from 4% for the psychological factors domain to 72% for the disability domain. Conclusion: 233 unique outcome measures for Achilles tendinopathy were identified. Most frequently, outcome measures were used within the disability domain. Outcome measures assessing psychological factors were scarcely used. The next step in developing a core outcome set for Achilles tendinopathy is to engage patients, clinicians and researchers to reach consensus on key outcomes measures. Prospero Registration: CRD42020156763.

Original languageEnglish
Pages (from-to)613-641
Number of pages29
JournalSports Medicine
Volume52
Issue number3
DOIs
Publication statusPublished - Mar 2022

Bibliographical note

Acknowledgements
The authors wish to thank W.M. Bramer from the Erasmus MC Medical Library for developing and updating the search strategies. This research was supported by the National Institutes of Health under award number R01AR07203401A1 for SH and KS.

Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

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