Abstract
OBJECTIVE: To determine the minimal clinically important difference (MCID) for the Victorian Institute of Sport Assessment-Achilles (VISA-A) score in patients with midportion Achilles tendinopathy (AT).
DESIGN: Prospective cohort study.
METHODS: We included physically active patients with midportion AT who received exercises and an injection. We measured the VISA-A score (ranging from 0 to 100 points, where 100 points represents a healthy tendon) at baseline and at 12 weeks and 24 weeks after treatment, and the 7-point Global Assessment Scale (ranging from “worse than ever” to “completely recovered”) at 12 weeks and 24 weeks after treatment. We dichotomized the Global Assessment Scale to not improved (“worse than ever” to “unchanged”) or improved (“moderately improved” to “completely recovered”). The area under the curve and the Youden’s index value closest to 1 were determined for both MCIDs (12 and 24 weeks), with corresponding sensitivity and specificity. U RESULTS: Sixty-four patients were included, and 61 patients (95%) completed the 24-week follow-up. The MCID was 14 points (95% confidence interval [CI]: 3, 19) over a 12-week period, corresponding to 57% sensitivity and 88% specificity. The MCID was 7 points (95% CI: –10, 28) over a 24-week period, with 85% sensitivity and 62% specificity. U CONCLUSION: A change in VISA-A score of at least 14 points after 12 weeks or at least 7 points after 24 weeks of exercise therapy and an injection reflects a meaningful change for physically active patients with midportion AT.
| Original language | English |
|---|---|
| Pages (from-to) | 510-516 |
| Number of pages | 7 |
| Journal | Journal of Orthopaedic and Sports Physical Therapy |
| Volume | 51 |
| Issue number | 10 |
| Early online date | 30 Sept 2021 |
| DOIs | |
| Publication status | Published - Oct 2021 |
Bibliographical note
Funding Information:1Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands. 2Department of Sports Medicine, Haaglanden Medical Center, The Hague, the Netherlands. This research is funded by the Dutch Arthritis Association and the Anna Foundation. Both are noncommercial organizations and were not involved in the content of this publication. The views expressed in the submitted article are our own and not an official position of the institution or funder. The High-volume image-guided injection in chronic midportion Achilles Tendinopathy study was approved by the Medical Research Ethics Committee of Southwest Holland, the Netherlands (MEC-14-100). The trial was registered with the Netherlands Trial Register (number NL4686) and with www.clinicaltrials.gov (NCT02996409). The authors certify that they have no affiliations with or financial involvement in any organization or entity with a direct financial interest in the subject matter or materials discussed in the article. Address correspondence to Dr Iris Femmigje Lagas, Erasmus University Medical Center, Department of Orthopaedics and Sports Medicine, Doctor Molewaterplein 40, 3015 GD Rotterdam, the Netherlands. E-mail: [email protected] U Copyright 2021 JOSPT ®, Inc
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