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Response to: ‘Correspondence on ‘Non-surgical and surgical treatments for rotator cuff disease: a pragmatic randomised clinical trial with 2-year follow-up after initial rehabilitation’’ by Randelli et al
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  1. Sanna Cederqvist1,
  2. Tapio Flinkkilä2,
  3. Jari Ylinen3,
  4. Hannu Kautiainen4,5,
  5. Antti Tuominen6,
  6. Ilkka Kiviranta7,8,
  7. Juha Paloneva9,10
  8. the Surgery for rotator cuff disease Finland (SURFIN) Investigators
    1. 1Orthopaedics and Traumatology, Tampere University Hospital, Tampere, Finland
    2. 2Department of Orthopedics and Traumatology, Oulu University Hospital, Oulu, Finland
    3. 3Department of Physical Medicine and Rehabilitation, Central Finland Central Hospital, Jyvaskyla, Central Finland, Finland
    4. 4Primary Health Care Unit, Kuopio University Hospital, Kuopio, Finland
    5. 5Research Center, Folkhälsan, Helsinki, Finland
    6. 6Department of Surgery, Central Finland Hospital Nova, Jyvaskyla, Finland
    7. 7Department of Orthopaedics and Traumatology, Helsinki University Central Hospital, Helsinki, Finland
    8. 8Department of Orthopedics and Traumatology, University of Helsinki, Helsinki, Finland
    9. 9Department of Surgery, Central Finland Hospital Nova, Jyväskylä, Finland
    10. 10Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
    1. Correspondence to Dr Sanna Cederqvist, Orthopaedics and Traumatology, Tampere University Hospital, 33520 Tampere, Finland; sanna.cederqvist{at}icloud.com

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    We warmly thank Randelli and coworkers for their interest in our work.1 Our randomised, pragmatic, controlled trial compared surgical and non-surgical treatments for rotator cuff disease (RCD) with or without full-thickness tendon tears after unsuccessful initial rehabilitation.2

    Randelli and coworkers commented that the power of our study lies in the fact that potential eligible patients underwent a systematic, adequately performed 3-month rehabilitation, after which only patients who remained symptomatic were randomised; we agree. Symptoms alleviated in 102 of the 417 shoulders with chronic RCD (mean duration of symptoms 9 months before recruitment) during the 3 month, pragmatic nonoperative treatment. This indicates that conservative management should be carried out in all patients with chronic RCD before considering surgical treatment for full-thickness rotator cuff tear.

    Randelli and coworkers criticised us for not reporting baseline characteristics of the prespecified subgroups (RCD with and without full-thickness tendon rupture). They also noted that while 25% of shoulders were not treated per protocol, the number of those with a full-thickness rupture was unreported. Randelli and coworkers find interpreting our results based on the intention-to-treat principle difficult. We deliberately chose this approach for the following reasons. RCD and its surgical treatment are common.3 4 Our primary aim was to answer a question frequently asked by many GPs, rheumatologists and orthopaedic surgeons: How should I treat a patient with RCD? At the time our trial was registered (2008), these two types of RCD were considered clinically different conditions by many physicians, although it is not possible to reliably distinguish these two forms of RCD by clinical examination. The initial nonsurgical treatment of RCD with or without a full-thickness lesion is largely identical. Due to stratification, the numbers of non-full-thickness and full-thickness lesions are equal. We applied the intention-to-treat principle in all primary analyses. We, therefore, consider it logical to report the baseline characteristics of the whole study population, one of which was the presence of full-thickness tendon lesion.

    Randelli and coworkers emphasised that a longer follow-up is needed to further clarify the relative superiority of nonsurgical and surgical RCD treatments; we totally agree on this. Our 5-year follow-up results will be reported later.

    Fine characterisation of tendon lesions and surgical techniques were called for. Due to our pragmatic approach, MRI arthrographies were performed using different MRI machines, hence the scanning protocols varied slightly. Thus, we did not aim to perform a detailed evaluation of rotator cuff tear sizes. We believe that the presence of a full-thickness tear (yes/no) and its operability (fatty infiltration, tendon retraction) are more important than tear size when considering treatment options in clinical practice. Furthermore, dividing tears into different (arbitrary) size groups would have reduced the power of the study. According to the previous literature, differences in outcome between open and arthroscopic rotator cuff procedures have not been demonstrated.5 6 In our study, we observed no obvious difference. Also, the subgroups were too small for detailed analyses. Moreover, this was not a question registered in our trial protocol.

    Acknowledgments

    We wish to thank the whole SURFIN study group and all of the participants in the trial, the organisations and personnel. The research group thanks our study physiotherapists Saara-Maija Hinkkanen and Nina Sevander-Kreus for their support.

    References

    Footnotes

    • Handling editor Josef S Smolen

    • Collaborators The Surgery for rotator cuff disease Finland (SURFIN) Investigators: Markus Sormaala; Tero Irmola; Heidi Lehtokangas; Juho Liukkonen; Konsta Pamilo; Tero Ridanpää; Kai Sirniö; Juhana Leppilahti.

    • Contributors Concept and design: JP, IK, HK, JY. Acquisition analysis or data interpretation: SC, TF, JY, HK, AT, IK, JP. SC and JP had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.Drafting the manuscript: SC, TF, JY, HK, AT, IK, JP. Critical revision of the manuscript for important intellectual content: SC, TF, JY, HK, AT, IK, JP. Statistical analysis: HK, SC, JP. Funding procurement: JP, IK, JL. Supervision: JP, IK, HK.

    • Funding This work was supported by grants from the Academy of Finland (grant 12321/13 September 2007) 265646/17 April 2013) and National Competitive Research Funding of the University of Eastern Finland. None of the writers has any conflicts of interest relevant to this article.

    • Competing interests None declared.

    • Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

    • Patient consent for publication Not required.

    • Ethics approval The Ethics Committee of the Central Finland Health Care District approved the trial on May 23, 2007.

    • Provenance and peer review Not commissioned; externally peer reviewed.

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