An experimental comparative study between polypropylene and laminated lower limb prosthetic socket
Abstract
Most researchers concentrate their studies on the design, stress and pressure distributions of the prosthetic socket. A little attention is considered for the stiffness of the various materials of the prosthetic sockets. Prosthetic laminated sockets in Iraq are costly to be manufactured while polypropylene socket is relatively cheap in comparing with the laminates.
Experimental study is conducted to compare the stiffness of five prosthetic sockets made of different materials. Compression, three point flexural and tensile tests are implemented by the Testometric machine. The laminate sockets give better results in compression than polypropylene. Polypropylene gives good results in bending compared with the laminate sockets. When the socket loads are mainly in compression i.e. the low activity level patients, it seems that any of the tested sockets could be used, however, when the load will be not only in compression but in flexion as well i.e. high activity patients, socket No.1 and 5 could be used.
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References
[2] Bielefeldt and Schreck; "The Altered Alignment Influence on above Knee Prosthesis Socket Pressure Distribution";
International Series on Biomechanics VIIa; 1981: 387-393.
[3] Joshua S. Rovick & Dudley S. Childress;" An Additive Fabrication Technique for the CAM of Prosthetic Sockets"; (VA Project Number: A711-DA); 1995.
[4] Matt Flamming;" Clinical Evaluation of Trans-tibial Suspension System"; Monash Rehabilitation Technology Research Unit; 1998.
[5] Ross Stewart;" Tran-tibial Syspension System", Monash Rehabilitation Technology Research Unit; 1998.
[6] Arthur F.T. Mak,PhD,Ming Zhang,PhD & David A.Boon,"State-of-the-are research in lower limb prosthetic biomechanics socket interface",JRRD,Vol.38 No.2 March/April 2003.
[7] Winson C.C.Lee,BSc,Ming Zhang,PhD,"Finite element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket", JRRD,Vol.41,No.6A,Nov.2004.
[8] R.C. Hibbler;" Mechanics of Materials"; Prentice Hall International, Inc.
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