Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data
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 severa...
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| Format: | Article |
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MDPI AG
2023-07-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/14/6500 |
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| author | Constanze Neupetsch Eric Hensel Andreas Heinke Tom Stapf Nico Stecher Hagen Malberg Christoph-Eckhard Heyde Welf-Guntram Drossel |
| author_facet | Constanze Neupetsch Eric Hensel Andreas Heinke Tom Stapf Nico Stecher Hagen Malberg Christoph-Eckhard Heyde Welf-Guntram Drossel |
| author_sort | Constanze Neupetsch |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T00:40:31Z |
| format | Article |
| id | doaj.art-e144de6d3e524cbfba76f867ba8d1a55 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T00:40:31Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-e144de6d3e524cbfba76f867ba8d1a552023-11-18T21:18:35ZengMDPI AGSensors1424-82202023-07-012314650010.3390/s23146500Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational DataConstanze Neupetsch0Eric Hensel1Andreas Heinke2Tom Stapf3Nico Stecher4Hagen Malberg5Christoph-Eckhard Heyde6Welf-Guntram Drossel7Fraunhofer Institute for Machine Tools and Forming Technology, 09126 Chemnitz, GermanyFraunhofer Institute for Machine Tools and Forming Technology, 09126 Chemnitz, GermanyInstitute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology, 09126 Chemnitz, GermanyInstitute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, GermanyInstitute of Biomedical Engineering, Dresden University of Technology, 01307 Dresden, GermanyDepartment of Orthopaedic, Trauma and Plastic Surgery, University of Leipzig Medical Center, 04103 Leipzig, GermanyFraunhofer Institute for Machine Tools and Forming Technology, 09126 Chemnitz, GermanyThe 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.https://www.mdpi.com/1424-8220/23/14/6500socket fitlower-limb prosthesistransfemoral amputationresidual limblocal pressure markstructural dynamics |
| spellingShingle | Constanze Neupetsch Eric Hensel Andreas Heinke Tom Stapf Nico Stecher Hagen Malberg Christoph-Eckhard Heyde Welf-Guntram Drossel Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data Sensors socket fit lower-limb prosthesis transfemoral amputation residual limb local pressure mark structural dynamics |
| title | Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data |
| title_full | Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data |
| title_fullStr | Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data |
| title_full_unstemmed | Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data |
| title_short | Approach for Non-Intrusive Detection of the Fit of Orthopaedic Devices Based on Vibrational Data |
| title_sort | approach for non intrusive detection of the fit of orthopaedic devices based on vibrational data |
| topic | socket fit lower-limb prosthesis transfemoral amputation residual limb local pressure mark structural dynamics |
| url | https://www.mdpi.com/1424-8220/23/14/6500 |
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