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Analysis of trans tibial prosthetic socket materials using finite element method

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DOI: 10.4236/jbise.2011.412094    5,926 Downloads   11,520 Views   Citations


The objective of this work was to analyze in a parametric study for optimum design solution of prosthetic socket material by finite element method. A realistic three-dimensional finite element model of the PTB socket was developed to find out the stress distribution pattern under physiologically relevant loading condition during normal walking. The CAD model of the rectified socket was collected from a CMET 250 non-tactile high accuracy (0.06 mm) white light scanner and analyses were carried out using finite element Method in ANSYS®. All structural materials used in the analysis were assumed to be linearly elastic, homogeneous and isotropic. Different materials were used for socket and only polypropylene was used for socket adopter. Analysis was prepared at 2 mm, 3 mm, 4 mm, 5 mm & 6 mm thickness of socket in different materials commonly used in developing countries. The bottom line of socket was made to zero displacement constraints and vertical loads in relation to stance phase of gait cycle were applied under static condition at the patella tendon brim. The 3 mm laminated composite sockets was found to be optimum in terms of strength, weight and factor of safety.

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Lenka, P. and Choudhury, A. (2011) Analysis of trans tibial prosthetic socket materials using finite element method. Journal of Biomedical Science and Engineering, 4, 762-768. doi: 10.4236/jbise.2011.412094.


[1] Radcliff, C.W. and Foort, J. (1961) The patellar-tendon-bearing below-knee prosthesis. Biomechanics laboratory, University of California, Berkeley.
[2] Radcliff C.W. (1955) Functional considerations in the fitting of above-knee prostheses. Artificial Limb, 2, 35-60.
[3] Jia, X., Zhang, M. and Lee, W.C.C. (2004) Load transfer mechanics between trans-tibial prosthetic socket and residual limb—dynamic effects. Journal of Biomechanics, 37, 1371-1377. doi:10.1016/j.jbiomech.2003.12.024
[4] Lee, W.C.C., Zhang, M., Jia, X.H. and Cheung J.T.M. (1961) Finite element modelling of the contact interface between trans-tibial residual limb and prosthetic socket. Medical Engineering & Physics, 26, 655-662. doi:10.1016/j.medengphy.2004.04.010
[5] Faustini, M.C., Neptune, R.R. and Crawford, R.H. (2006) The quasisstatic response of compliant prosthetic sockets for transtibial amputees using finite element methods. Medical Engineering & Physics, 28, 114-121. doi:10.1016/j.medengphy.2005.04.019
[6] Saunders, M.M., Schwentker, E.P., Kay, DB, Bennett, G., Jacobs, C.R., Verstraete, M.C. and Njus, G.O. (2003) Finite element analysis as a tool for parametric prosthetic foot design and evaluation. Technique development in the solid ankle cushioned heel (SACH). Computer Methods in Biomechics and Biomedical Engineering, 6, 75-87. doi:10.1080/1025584021000048974
[7] Geil, M.D. (2002) An iterative method for viscoelastic modeling of prosthetic feet. Journal of Biomechanics, 35, 1405-1410. doi:10.1016/S0021-9290(02)00169-0
[8] Zhang, M. and Roberts, V.C. (1993) Development of a nonlinear finite element model for analysis of stump/ socket interface stresses in below-knee amputee. In: Held, K.D., Brebbia, C.A., Ciskowski, R.D. and Power, H., Eds., Computational biomedicine, Computational Mechanics Pub., Southampton, 209-214.
[9] Steege, J.W. and Childress, DS. (1988) Finite element prediction of pressure at the below-knee socket interface. Report of ISPO Workshop on CAD/CAM in Prosthetics and Orthotics, 71-82.
[10] Silver-Thorn, M.B. and Childress, D.C. (1996) Parametric analysis using the finite element method to investigate prosthetic interface stresses for persons with trans-tibia amputation. Journal of Rehabilitation Research and Develomet, 33, 227-238.
[11] Zhang, M., Mak, A., Roberts VC. (1998) Finite element modeling of residual lower-limb in a prosthetic socket: a survey of the development in the first decade. Medical Engineering & Physics, 20, 360-373. doi:10.1016/S1350-4533(98)00027-7
[12] Zhang, M., Lord, M., Turner-Smith, A.R. and Roberts, V.C. (1995) Development of a non linear finite element modeling of the below-knee prosthetic socket interface. Medical Engineering & Physics, 17, 559-566. doi:10.1016/1350-4533(95)00002-5
[13] Zachariah, S.G. and Sanders, J.E. (2000) Finite element estimates of interface stress in the trans-tibial prosthesis using gap elements are different from those using automated contact. Journal of Biomechanics, 33, 895-904. doi:10.1016/S0021-9290(00)00022-1
[14] Torres-Moreno, R., Jones, D., Solomonidis, S.E. and Mackie, H. (1999) Magnetic resonance imaging of residual soft tissues for computer-aided technology applications in prosthetics—A case study. Journal of Prosthet Orthot, 11, 6-11. doi:10.1097/00008526-199901110-00003
[15] Lee, V.S.P., Solomonidis, S.E., Spence, W.D. and Paul, J.P. (1994) A study of the biomechanics of the residual limb/prosthesis interface in trans-femoral amputees. Proceedings of 8th Word Congress of ISPO, Melbourne, 79.
[16] Zhang, M. and Mak, A.F.T. (1996) A finite element analysis of the load transfer between an above-knee residual limb and its prosthetic socket-roles of interfacial friction and distal-end boundary conditions. IEEE Transactions on Rehabilitation Engineering, 4, 337-346. doi:10.1109/86.547935
[17] Zhang, M. and Roberts, C. (2000) Comparison of computational analysis with clinical measurement of stresses on below-knee residual limb in a prosthetic socket. Medical Engineering & Physics, 22, 607-612. doi:10.1016/S1350-4533(00)00079-5
[18] Lee, W.C.C., Zhang, M. and Mak, A.F. (1961) Regional differences in pain threshold and tolerance of the transtibial residual limb: Including the effects of age and interface material. Archives of Physical Medicine and Rehabilitation, 86, 641-650. doi:10.1016/j.apmr.2004.08.005
[19] Faustini, M.C., Crawford, R.H. and Neptune, R.R.J. (2005) Design and analysis of orthogonally compliant features for local contact pressure relief in transtibial prostheses. Journa of Biomedical Engineering, 127, 946-955. doi:10.1115/1.2049331
[20] Portnoy, S., Yarnitzky, G., Yizhar, Z., Kristal, A., Oppenheim, U., Siev-Ner, I. and Gefen, A. (2007) Real-time patient-specific finite element analysis of internal stresses in the soft tissues of a residual limb: A new tool for prosthetic fitting. Annals of Biomedical Engineering, 35, 120- 135.
[21] Sewell, P., Vinney, J., Noroozi, S., Amali, R. and Andrews, S. (2005) A photoelastic clinical study of the static load distributionat the stump/socket interface of PTB sockets. Prosthetics and Orthotics International, 29, 291-302. doi:10.1080/03093640500465153
[22] Chen, N.Z., Lee, W.C.C. and Zhang, M. (2006) A robust design procedure for improvement of quality of lower- limb prosthesis. Bio-Medical Materials and Engineering, 16, 309-318.
[23] Faustini, M.C., Neptune, R.R., Crawford R.H., Rogers W.E. and Bosker G. (2006) An experimental and theoretical framework for manufacturing prosthetic sockets for transtibial amputees. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 14, 304-310.
[24] Mtalo, L.B. (2000) Appropriate prosthetic prescription. The ISPO Consensus Conference on Appropriate Ortho- paedic Technology for Low-Income Countries, Moshi, 18-22 September 2000.
[25] National Institute for the Orthopaedically Handicapped, Kolkata, India.
[26] Jensen, J.S., Craig, J.G., Mtalo, L.B. and Zelaya, C.M. (2004) Clincial field follow up of high density polyethylene (HDPE)-Jaipur Prosthesis technology for transfe-moral amputtee. Journal of Prosthetics and Orthotics, 28, 152-166. doi:10.1080/03093640408726700
[27] COMET 250, QC Inspection Services, Incl (HQ). Burnsville, USA.
[28] Central Mechanical Engineering Research Institute, Durgapur, India.
[29] Kalen, V., Adler, N. and Bleck, E.E. (1986) Electromyography of idiopathic toe walking. Journal of Pediatric Orthopaedics, 6, 31-33. doi:10.1097/01241398-198601000-00006
[30] Lyons, K., Perry, J., Gronley, J., Barnes, L. and Antonelli, D. (1983) Timing and relative intensity of hip extensor and abductor muscle action during level and stair ambulation: an EMG Study. Journal of the American Physical Therrpy Association, 63, 1597-1605.
[31] Mann, R.A.and Inman, V.T. (1964) Phasic activity of intrinsic muscles of the foot. Journal of Bone and Joint Surgery, 46, 469-481.
[32] Moxham, J., Edwards, R.H.T., Aubier, M, DeTroyer, A, Farkas, G., Macklem, P.T. and Roussos, C. (1982) Changes in EMG power spectrum (high-to-low ratio) with force fatigue in humans. Journal of Applied Physiology, 53, 1094-1099.
[33] Hahl, J. and Taya, M. (2000) Experimental and numerical predictions of the ultimate strength of a low-cost composite transtibial prosthesis. Journal of Rehabilitation Research and Developemt, 37, 405-413.
[34] Silver-Thron, M.B. (1991) Prediction and experimental verification of residual limb/prosthetic socket interface pressure for below knee amputees (Dissertation). Northwestern University, Evanstoon.
[35] Zhang, M., Turner-Smith, A.R., Tanner, A. and Robert, V.C. (1998) Clinical investigation of a pressure and shear stress on the transtibial stump with prosthesis. Medical Engineering & Physics, 20, 188-198. doi:10.1016/S1350-4533(98)00013-7
[36] Buis, A.W.P. and Convery, P. (1998) Conventional patellar-tendon-bearing (PTB) socket/stump interface dynamic pressure distribution recorded during the prosthetic stance phase of gait of a trans-tibial amputee. Prosthetic Orthotic International, 22, 193-198.
[37] Zahedi, S. (year) Atlas of prosthetics. 3rd Edition, Lower Limb Prosthetic Research in 21st Century.
[38] Gibson, R.F. (1994) Principles of composite materials mechanics. McGraw-Hill, New York.
[39] Hamill, J. and Knutzen, C.N. (1961) Biomechanical basis of human movement. 2nd Edition, William & Wilkins Publisher, Philadelphia, 237.
[40] Lee, W.C.C., Zhang, M., Boone, D.A. and Contoyannis, B. (2004) Finite-element analysis to determine effect of monolimb flexibility on structural strength and interaction between residual limb and prosthetic socket. Journal of Rehabilitation Research & Develomet, 41, 775-786. doi:10.1682/JRRD.2004.01.0003
[41] Giancoli, D. (2000) Physics for scientists & engineers. 3rd Edition, Prentice Hall, Upper Saddle River.

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