A case study on the value of in-socket force measurements in gait monitoring of lower-limb prosthesis users

Jamshidi, M Amin; Esmaili, Siavash; Azhari, Fae

doi:10.1109/embc48229.2022.9871480

Cited by 2 publications

(1 citation statement)

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“…Wax along the sensor leads fixed them on the socket. Similar sensor placement can be found in [ 23 , 24 ]. These zones were anatomically associated with the most pressure-tolerant and pressure-sensitive regions.…”

Section: Materials and Methodsmentioning

confidence: 84%

Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data

Neupetsch,

Hensel,

Heinke

et al. 2023

Sensors

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The soft tissues of residual limb amputees are subject to large volume fluctuations over the course of a day. Volume fluctuations in residual limbs can lead to local pressure marks, causing discomfort, pain and rejection of prostheses. Existing methods for measuring interface stress encounter several limitations. A major problem is that the measurement instrumentation is applied in the sensitive interface between the prosthesis and residual limb. This paper presents the principle investigation of a non-intrusive technique to evaluate the fit of orthopaedic prosthesis sockets in transfemoral amputees based on experimentally obtained vibrational data. The proposed approach is based on changes in the dynamical behaviour detectable at the outer surface of prostheses; thus, the described interface is not affected. Based on the experimental investigations shown and the derived results, it can be concluded that structural dynamic measurements are a promising non-intrusive technique to evaluate the fit of orthopaedic prosthesis sockets in transfemoral amputee patients. The obtained resonance frequency changes of 2% are a good indicator of successful applicabilityas these changes can be detected without the need for complex measurement devices.

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Section: Materials and Methodsmentioning

confidence: 84%