Surface profile of laminated transfemoral socket fabricated with different types of reinforcement materials
Document Type
Article
Publication Date
6-1-2023
Abstract
Composite materials used in the prosthetic and orthotic fields have helped improve the fabrication of sockets. Laminated sockets proved to be stronger than conventional thermoplastic sockets. The internal surface of a laminated socket plays an important role in patient comfort and is influenced by the material used to fabricate the socket. This study analyzes the internal surface profile of five different materials, that is, Dacron felt, fiberglass, Perlon stockinette, polyester stockinette, and elastic stockinette. All sockets were fabricated using an acrylic resin mix with hardener powder at a ratio of 100:3. The internal surface of the sockets was tested using the Mitutoyo SurfTest SJ-210 series for 20 trials. The overall R-a values were 2.318, 2.380, 2.682, 2.722, and 3.750 mu m for fiberglass, polyester, Perlon, elastic stockinette, and Dacron felt. Dacron felt yielded the lowest R-a value, thus, producing the smoothest internal surface but requiring high skill and the correct technique during the fabrication of a laminated socket. Fiberglass is considered the best material for the internal surface despite not producing the lowest value individually but overall is the lowest and most consistent, indicating that it is easy to use to laminate prosthetic sockets.
Keywords
Lamination, prosthetics, orthotics, surface roughness
Divisions
biomedengine,mechanical
Funders
Universiti Malaya (KTP2020-A)
Publication Title
Proceedings of the Institution of Mechanical Engineers Part H-Journal of Engineering in Medicine
Volume
237
Issue
6
Publisher
SAGE Publications
Publisher Location
1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND