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Correction to: Treatment of acute Achilles tendon rupture - a multicentre, non-inferiority analysis

BMC Musculoskeletal Disorders volume 22, Article number: 193 (2021) Cite this article

The Original Article was published on 08 June 2020

Correction to: BMC Musculoskelet Disord 21, 358 (2020)

https://doi.org/10.1186/s12891-020-03320-3

Following publication of this article [1], the authors report the following Corrections to the main text:

  1. i)

    The authors noticed that the reported number of patients that were treated surgically were too many (n = 363) and have corrected the numbers (n = 337). Patients from the cohort Nilsson-Helander et al. [2] were incorrectly labeled as surgically treated when they had received non-surgical treatment. In view of this database mix up, the statistical analysis was re-performed with the correct database and the results changed accordingly.

  2. ii)

    With updated guidelines on how to perform non-inferiority studies having been published in the New England Journal of Medicine [3], since the original analysis was published, the statistical method have accordingly been changed to using Fisher’s Non-parametric Permutation Test. The limb symmetry index for total work is inconclusive. The main conclusion, however, is unchanged that there is no significant difference between the surgery and non-surgery.

References

  1. Westin O, Sjogren T, Svedman S, Horvath A, Hamrin Senorski E, Samuelsson K, Ackermann P. Treatment of acute Achilles tendon rupture - a multicentre, non-inferiority analysis. BMC Musculoskelet Disord. 2020;21(1):358.

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  2. Nilsson-Helander K, Sward L, Silbernagel KG, Thomee R, Eriksson BI, Karlsson J. A new surgical method to treat chronic ruptures and reruptures of the Achilles tendon. Knee Surg Sports Traumatol Arthrosc. 2008;16(6):614–20.

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  3. Mauri L, D'Agostino RB Sr. Challenges in the design and interpretation of noninferiority trials. N Engl J Med. 2017;377(14):1357–67.

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Author information

Authors and Affiliations

  1. Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

    Olof Westin, Tony Sjögren & Kristian Samuelsson

  2. Department of Orthopaedics, Sahlgrenska University Hospital, Mölndal, Sweden

    Olof Westin & Kristian Samuelsson

  3. Department of Molecular Medicine and Surgery, Karolinska Institutet, Integrative Orthopedic Laboratory, Stockholm, Sweden

    Simon Svedman & Paul Ackermann

  4. Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

    Alexandra Horvath

  5. Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden

    Eric Hamrin Senorski

  6. Department of Orthopedic Surgery, Karolinska University Hospital, Stockholm, Sweden

    Paul Ackermann

Authors
  1. Olof Westin
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  2. Tony Sjögren
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  3. Simon Svedman
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  4. Alexandra Horvath
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  5. Eric Hamrin Senorski
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  6. Kristian Samuelsson
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  7. Paul Ackermann
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Corresponding author

Correspondence to Olof Westin.

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Westin, O., Sjögren, T., Svedman, S. et al. Correction to: Treatment of acute Achilles tendon rupture - a multicentre, non-inferiority analysis. BMC Musculoskelet Disord 22, 193 (2021). https://doi.org/10.1186/s12891-021-04045-7

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  • DOI: https://doi.org/10.1186/s12891-021-04045-7

BMC Musculoskeletal Disorders

ISSN: 1471-2474

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