UKSTAR Trial Collaborators (Including: Costa, Matthew L., Achten, Juul, Marian, Ioana, Dutton, Susan J., Lamb, Sally, Ollivere, Benjamin, Maredza, Mandy, Petrou, Stavros and Kearney, Rebecca S.). (2020) Plaster cast versus functional brace for non-surgical treatment of Achilles tendon rupture (UKSTAR) : a multicentre randomised controlled trial and economic evaluation. The Lancet, 395 (10222). pp. 441-448. doi:10.1016/S0140-6736(19)32942-3

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Abstract

Background
Patients with Achilles tendon rupture who have non-operative treatment have traditionally been treated with immobilisation of the tendon in plaster casts for several weeks. Functional bracing is an alternative non-operative treatment that allows earlier mobilisation, but evidence on its effectiveness and safety is scarce. The aim of the UKSTAR trial was to compare functional and quality-of-life outcomes and resource use in patients treated non-operatively with plaster cast versus functional brace.
Methods
UKSTAR was a pragmatic, superiority, multicentre, randomised controlled trial done at 39 hospitals in the UK. Patients (aged ≥16 years) who were being treated non-operatively for a primary Achilles tendon rupture at the participating centres were potentially eligible. The exclusion criteria were presenting more than 14 days after injury, previous rupture of the same Achilles tendon, or being unable to complete the questionnaires. Eligible participants were randomly assigned (1:1) to receive a plaster cast or functional brace using a centralised web-based system. Because the interventions were clearly visible, neither patients nor clinicians could be masked. Participants wore the intervention for 8 weeks. The primary outcome was patient-reported Achilles tendon rupture score (ATRS) at 9 months, analysed in the modified intention-to-treat population (all patients in the groups to which they were allocated, excluding participants who withdrew or died before providing any outcome data). The main safety outcome was the incidence of tendon re-rupture. Resource use was recorded from a health and personal social care perspective. The trial is registered with ISRCTN, ISRCTN62639639.
Findings
Between Aug 15, 2016, and May 31, 2018, 1451 patients were screened, of whom 540 participants (mean age 48·7 years, 79% male) were randomly allocated to receive plaster cast (n=266) or functional brace (n=274). 527 (98%) of 540 were included in the modified intention-to-treat population, and 13 (2%) were excluded because they withdrew or died before providing any outcome data. There was no difference in ATRS at 9 months post injury (cast group n=244, mean ATRS 74∙4 [SD 19∙8]; functional brace group n=259, ATRS 72∙8 [20∙4]; adjusted mean difference –1∙38 [95% CI –4∙9 to 2∙1], p=0·44). There was no difference in the rate of re-rupture of the tendon (17 [6%] of 266 in the plaster cast group vs 13 [5%] of 274 in the functional brace group, p=0·40). The mean total health and personal social care cost was £1181 for the plaster cast group and £1078 for the functional bract group (mean between-group difference –£103 [95% CI –289 to 84]).
Interpretation
Traditional plaster casting was not found to be superior to early weight-bearing in a functional brace, as measured by ATRS, in the management of patients treated non-surgically for Achilles tendon rupture. Clinicians may consider the use of early weight-bearing in a functional brace as a safe and cost-effective alternative to plaster casting.

Item Type:	Journal Article
Divisions:	Faculty of Medicine > Warwick Medical School > Health Sciences > Clinical Trials Unit Faculty of Medicine > Warwick Medical School > Health Sciences Faculty of Medicine > Warwick Medical School
Journal or Publication Title:	The Lancet
Publisher:	Lancet Publishing Group
ISSN:	0140-6736
Official Date:	8 February 2020
Dates:	Date Event 8 February 2020 Published 13 December 2019 Available 21 November 2019 Accepted
Volume:	395
Number:	10222
Page Range:	pp. 441-448
DOI:	10.1016/S0140-6736(19)32942-3
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access
Related URLs:	Publisher

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