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Bracing Adolescent Idiopathic Scoliosis (BASIS) study ? night-time versus full-time bracing in adolescent idiopathic scoliosis: study protocol for a multicentre, randomized controlled trial

Swaby, Lizzie, Perry, Daniel C., Walker, Kerry, Hind, Daniel, Mills, Andrew, Jayasuriya, Raveen, Totton, Nikki, Desoysa, Lauren, Chatters, Robin, Young, Bridget, Sherratt, Frances, Latimer, Nick, Keetharuth, Anju, Kenison, Laura, Walters, Stephen, Gardner, Adrian, Ahuja, Sashin, Campbell, Laura, Greenwood, Sarah, Cole, Ashley, Turtle, Chris, Waterhouse, Simon, Davidson, Neil, Shafafy, Masood, Marjoram, Tom, Oxborrow, Neil, Sedra, Fady, Harris, Mark, Leong, Julian, Lucas, Jonathan, Lui, Darren, Isaacson, Antonia, Bowey, Andy, Harding, Ian, Davies, Evan, Jasani, Vinay, Khan, Almas, Thorpe, Paul, Tsirikos, Thanos and Sloan, Sam 2023. Bracing Adolescent Idiopathic Scoliosis (BASIS) study ? night-time versus full-time bracing in adolescent idiopathic scoliosis: study protocol for a multicentre, randomized controlled trial. Bone and Joint Open 4 (11) , pp. 873-880. 10.1302/2633-1462.411.BJO-2023-0128

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Aims Scoliosis is a lateral curvature of the spine with associated rotation, often causing distress due to appearance. For some curves, there is good evidence to support the use of a spinal brace, worn for 20 to 24 hours a day to minimize the curve, making it as straight as possible during growth, preventing progression. Compliance can be poor due to appearance and comfort. A night-time brace, worn for eight to 12 hours, can achieve higher levels of curve correction while patients are supine, and could be preferable for patients, but evidence of efficacy is limited. This is the protocol for a randomized controlled trial of ‘full-time bracing’ versus ‘night-time bracing’ in adolescent idiopathic scoliosis (AIS). Methods UK paediatric spine clinics will recruit 780 participants aged ten to 15 years-old with AIS, Risser stage 0, 1, or 2, and curve size (Cobb angle) 20° to 40° with apex at or below T7. Patients are randomly allocated 1:1, to either full-time or night-time bracing. A qualitative sub-study will explore communication and experiences of families in terms of bracing and research. Patient and Public Involvement & Engagement informed study design and will assist with aspects of trial delivery and dissemination. Discussion The primary outcome is ‘treatment failure’ (Cobb angle progression to 50° or more before skeletal maturity); skeletal maturity is at Risser stage 4 in females and 5 in males, or ‘treatment success’ (Cobb angle less than 50° at skeletal maturity). The comparison is on a non-inferiority basis (non-inferiority margin 11%). Participants are followed up every six months while in brace, and at one and two years after skeletal maturity. Secondary outcomes include the Scoliosis Research Society 22 questionnaire and measures of quality of life, psychological effects of bracing, adherence, anxiety and depression, sleep, satisfaction, and educational attainment. All data will be collected through the British Spine Registry.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Medicine
Publisher: British Editorial Society of Bone and Joint Surgery
ISSN: 2633-1462
Date of First Compliant Deposit: 15 March 2024
Last Modified: 15 Mar 2024 11:02

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