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http://hdl.handle.net/10397/88327
Title: | The bench-top accuracy of the VerteTrack spinal stiffness assessment device | Authors: | Young, A Swain, MS Kawchuk, GN Wong, AYL Downie, AS |
Issue Date: | 2020 | Source: | Chiropractic and manual therapies, 2020, v. 28, no. 1, 42, p. 1-9 | Abstract: | BACKGROUND: The assessment of spinal stiffness by manual palpation in clinical settings has demonstrated both poor accuracy and reliability. More recently, mechanical methods for assessment of spinal stiffness have demonstrated superior accuracy and reliability. However, mechanical methods of spinal stiffness assessment can be expensive, time consuming and/or unsuited to clinical practice. While a new device has been designed to address these issues (VerteTrack), its benchtop performance remains unknown. AIM: To measure the bench-top performance of VerteTrack. METHODS: A series of laboratory-based experiments were conducted in February 2018 to investigate the accuracy (precision and bias) of load and displacement measurements obtained by VerteTrack and then were compared against an appropriate reference standard. Measurements of both multiple-level continuous assessment (multiple spinal levels measured), and single-level assessment (single spinal level measured) were performed on a viscoelastic foam medium (AIREX® balance beam, Switzerland) and the resulting stiffness calculated. RESULTS: VerteTrack demonstrated high precision at all loads and displacements. There was minimal systematic measurement bias identified for applied versus reference load (mean bias = - 0.123 N; 95%CI - 0.182 to 0.428 N, p < .001), and no systematic measurement bias for measured versus reference displacement (mean difference = 0.02 mm; 95%CI - 0.09 to 0.14 mm, p < .001). The magnitude of stiffness obtained during multiple-level continuous assessment was on average 0.25 N/mm (2.79%) less than that for single-level assessment (95%CI - 0.67 to 0.17 N/mm, p < .001). CONCLUSIONS: VerteTrack demonstrated high accuracy (high precision, low bias) under bench-top conditions. The difference in stiffness found between multiple versus single spinal levels should be considered in the research context, but is unlikely to be clinically relevant. The results of this study demonstrate that VerteTrack may be suitable for both single and multi-level spinal stiffness measurements in-vivo. |
Keywords: | Mechanical spinal stiffness device Spinal stiffness Spinal stiffness assessment VerteTrack and instrumented spinal stiffness measurements |
Publisher: | BioMed Central | Journal: | Chiropractic and manual therapies | EISSN: | 2045-709X | DOI: | 10.1186/s12998-020-00331-8 | Rights: | © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ttp://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. The following publication Young, A., Swain, M.S., Kawchuk, G.N. et al. The bench-top accuracy of the VerteTrack spinal stiffness assessment device. Chiropr Man Therap 28, 42 (2020), is available at https://doi.org/10.1186/s12998-020-00331-8 |
Appears in Collections: | Journal/Magazine Article |
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Young_bench-top_accuracy.pdf | 1.62 MB | Adobe PDF | View/Open |
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