Mechanical Testing of a Novel Fastening Device to Improve Scoliosis Bracing Biomechanics for Treating Adolescent Idiopathic Scoliosis

Applied Bionics and Biomechanics
Chloe L ChungDenis J DiAngelo

Abstract

Velcro fastening straps are commonly used to secure a scoliosis brace around the upper body and apply corrective forces to the spine. However, strap loosening and tension loss have been reported that reduce spinal correction and treatment efficacy. A novel fastening device, or controlled tension unit (CTU), was designed to overcome these limitations. A scoliosis analog model (SAM) was used to biomechanically compare the CTU fasteners and posterior Velcro straps on a conventional brace (CB) as well as on a modified brace (MB) that included a dynamic cantilever apical pad section. Brace configurations tested were (1) CB with posterior Velcro straps, (2) CB with posterior CTU fasteners, (3) MB with posterior Velcro straps, and (4) MB with posterior CTU fasteners. MB configurations were tested with 0 N, 35.6 N, and 71.2 N CTU fasteners applied across the apical pad flap. Three-dimensional forces and moments were measured at both ends of the SAM. The CTU fasteners provided the same corrective spinal loads as Velcro straps when tensioned to the same level on the CB configuration and can be used as an alternative fastening system. Dynamically loading the apical flap increased the distractive forces applied to the spine without affecti...Continue Reading

References

May 30, 1998·Prosthetics and Orthotics International·M S Wong, J H Evans
May 6, 2008·Lancet·Stuart L WeinsteinJose A Morcuende
Jul 9, 2008·Prosthetics and Orthotics International·V M PhamA Thevenon
Jun 3, 2010·The Journal of Bone and Joint Surgery. American Volume·Donald E KatzJohn G Birch
Nov 30, 2010·Medical Engineering & Physics·Edmond LouJim Raso
Oct 1, 2011·Prosthetics and Orthotics International·Ioannis LoukosNicolaos Efstathopoulos
May 2, 2013·BMJ : British Medical Journal·Farhaan AltafHilali Noordeen
Sep 21, 2013·The New England Journal of Medicine·Stuart L WeinsteinMatthew B Dobbs

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Citations

May 2, 2019·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Claudio VergariWafa Skalli
May 22, 2021·Computer Methods and Programs in Biomedicine·Christos KoutrasMiguel A Otaduy

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Software Mentioned

Velcro
LabVIEW

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