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Title: Study protocol: a double blind randomised control trial of high volume image guided injections in achilles and patellar tendinopathy in a young active population
Authors: Barker-Davies, Robert M.
Nicol, Alastair
McCurdie, I.
Watson, James
Baker, Polly
Wheeler, Patrick C.
Fong, Daniel Tik-Pui
Lewis, Mark P.
Bennett, Alexander N.
Issue Date: 2017
Publisher: © The Authors. Published by Biomed Central.
Citation: BARKER-DAVIES, R.M. ...et al., 2017. Study protocol: a double blind randomised control trial of high volume image guided injections in achilles and patellar tendinopathy in a young active population. BMC Musculoskeletal Disorders, 18:204.
Abstract: Background: Chronic tendinopathy is a significant problem particularly in active populations limiting sporting and occupational performance. The prevalence of patellar tendinopathy in some sports is near 50% and the incidence of lower limb tendinopathy is 1.4% p.a. in the UK Military. Management includes isometric, eccentric, heavy slow resistance exercises and extracorporeal shockwave therapy (ESWT). Often these treatments are inadequate yet there is no good evidence for injection therapies and success rates from surgery can be as low as 50%. High Volume Image Guided Injection (HVIGI) proposes to strip away the neovascularity and disrupt the nerve ingrowth seen in chronic cases and has shown promising results in case series. This study aims to investigate the efficacy of HVIGI in a randomised controlled trial (RCT). Methods: RCT comparing 40ml HVIGI, with or without corticosteroid, with a 3ml local anaesthetic sham-control injection. Ninety-six participants will be recruited. Inclusion criteria: male, 18–55 years old, chronic Achilles or patellar tendinopathy of at least 6 months, failed conservative management including ESWT, and Ultrasound (US) evidence of neovascularisation, tendon thickening and echogenic changes. Outcome measures will be recorded at baseline, 6 weeks, 3, 6 and 12 months. Primary outcome measures include The Victoria Institute of Sport Assessments for Achilles and patellar tendinopathy (VISA-A and VISA-P) and VAS pain. Secondary outcome measures include Modified Ohberg score, maximum tendon diameter and assessment of hypoechoic appearance on US, and Functional Activity Assessment. Discussion: Despite previous interventional trials and reviews there is still insufficient evidence to guide injectable therapy for chronic tendinopathy that has failed conservative treatment. The scant evidence available suggests HVIGI has the greatest potential however there is no level one RCT evidence to support this. Investigating the efficacy of HVIGI against control in a RCT and separating the effect of HVIGI and corticosteroid will add high level evidence to the management of chronic tendinopathy resistant to conservative treatment.
Description: This is an Open Access Article. It is published by BioMed Central under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/
Sponsor: This study has attracted funding through Loughborough University from the Higher Education Funding Council for England and a PhD Studentship.
Version: Published
DOI: 10.1186/s12891-017-1564-7
URI: https://dspace.lboro.ac.uk/2134/25251
Publisher Link: http://dx.doi.org/10.1186/s12891-017-1564-7
ISSN: 1471-2474
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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