1. The bench-top accuracy of the VerteTrack spinal stiffness assessment device
- Author
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Anika Young, Michael S. Swain, Gregory N. Kawchuk, Arnold Y. L. Wong, and Aron S. Downie
- Subjects
Spinal stiffness ,Spinal stiffness assessment ,Mechanical spinal stiffness device ,VerteTrack and instrumented spinal stiffness measurements ,Chiropractic ,RZ201-275 ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
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
- Published
- 2020
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