ANALYSE OF SOCKET-PROSTHESIS-BLUNT COMPLEX FOR LOWER LIMB AMPUTEE USING OBJECTIVE MEASURE OF PATIENT’S GAIT CYCLE

Authors

  • Mariana ROTARIU University of Medicine and Pharmacy”Grigore T. Popa”- Iasi
  • R. FILEP OrtoProfil, Tg. Mureş, Romania
  • M. TURNEA University of Medicine and Pharmacy”Grigore T. Popa”- Iasi
  • M. ILEA University of Medicine and Pharmacy”Grigore T. Popa”- Iasi
  • D. AROTARITEI University of Medicine and Pharmacy”Grigore T. Popa”- Iasi
  • Marilena POPESCU Secondary School of Balţati, Iaşi

Abstract

The prosthetic application is a highly complex process. Modeling and simulation of biomechanics processes in orthopedics is a certainly field of interest in current medical research .Optimization of socket in order to improve the quality of patient’s life is a major objective in prosthetic rehabilitation. A variety of numerical methods for prosthetic application have been developed and studied. Material and methods: An objective method is proposed to evaluate the performance of a prosthetic patient according to surface pressure map over the residual limb.The friction coefficient due to various liners used in transtibial and transfemoral prosthesis is taken into account also. Results: Creation of a bio-based modeling and mathematical simulation allows the design, construction and optimization of contact between the prosthesis cup and lack of functionality of the patient amputated considering the data collected and processed in real time and non-invasively. The von Mises stress distribution in muscle flap tissue at the bone ends shows a larger region subjected to elevated von Mises stresses in the muscle tissue underlying longer truncated bones. Conclusions: Finite element method was used to conduct a stress analysis and show the force distribution along the device. The results contribute to a better understanding the design of an optimized prosthesis that increase the patient’s performance along with a god choice of liner, made by an appropriate material that fit better to a particular blunt. The study of prosthetic application is an exciting and important topic in research and will profit considerably from theoretical input. Interpret these results to be a permanent collaboration between math’s and medical orthopedics.

Author Biographies

  • Mariana ROTARIU, University of Medicine and Pharmacy”Grigore T. Popa”- Iasi

    Faculty of Medical Bioengineering
    Department of Biomedical Sciences

  • M. TURNEA, University of Medicine and Pharmacy”Grigore T. Popa”- Iasi

    Faculty of Medical Bioengineering
    Department of Biomedical Sciences

  • M. ILEA, University of Medicine and Pharmacy”Grigore T. Popa”- Iasi

    Faculty of Medical Bioengineering
    Department of Biomedical Sciences

  • D. AROTARITEI, University of Medicine and Pharmacy”Grigore T. Popa”- Iasi

    Faculty of Medical Bioengineering
    Department of Biomedical Sciences

References

1. Ali S., Clinical investigation of the interface pressure in the trans-tibia socket with Dermo and Seal-in X5 liner during walking and their effect on patient satisfaction, Clin Biom, 2012; 27 : 943–948.
2. Xiaohong J. , Ming Zhang, Winson C. C. Lee, Load Transfer Mechanics Between Trans-Tibial Pros-thetic Socket and Residual Limb — Dynamic Effects, J Biom,2003;37:1371-1377.
3. Portnoy, S., Internal mechanical conditions in the soft tissues of a residual limb of a trans-tibial ampu-tee, J Biom, 2008; 41:1897–1909.
4. Portnoy S., Real-time subject-specific analyses of dynamic internal tissue loads in the residual limb of transtibial amputees, Med Eng Phys, 2010; 32: 312–323.
5. Ventura J. D., Segal A. D., Klute G. K, Neptune R. R, Compensatory mechanisms of transtibial am-putees during circular turning, Gait Posture , 2011; 34:307–312.
6. Lacroix D., Patin J.F.R., Finite Element Analysis of Donning Procedure of a Prosthetic Transfemoral Socket, Ann Biomed Eng, 2011; 39: 2972–2983.
7. Zhang M., Mak A. F., A Finite Element Analysis of the Load Transfer Between an Above-Knee Residual Limb and its Prosthetic Socket-Roles of Interface Friction and Distal-End Boundary Condi-tions, IEEE Transact Rehabil Eng, 1996; 4: 337-346.
8. Mooney, M. A theory of large elastic deformation, J Appl Phys, 1940; 11:582–592.
9. Portnoy S., Siev-Ner I.,Yizar Z., Kristal A., Shabshin N.,Gefen A., Surgical and Morphological Fac-tors that Affect Internal Mechanical Loads in Soft Tissues of the Transtibial Residuum, Ann Biomed Engi, 2009;. 37: 2583–2605.
10. Rozumalski A.,Schwartz M. H, The GDI-Kinetic: A new index for quantifying kinetic deviations from normal gait, Gait Posture ,2011;33: 730–732.
11. Schwartz M.H.,Rozumalski A., The gait deviation index: A new comprehensive index of gait pathol-ogy, Gait & Posture, 2008;28 : 351–357.
12. Silverman A. K., Compensatory mechanisms in below-knee amputee gait in response to increasing steady-state walking speeds, Gait Posture, 2008; 28: 602–609.
13. Zhang M. Mak A. F., A finite element analysis of the load transfer between an above-knee residual limb and its prosthetic socket – Roles of interface friction and distal-end boundary conditions, IEEE Transact Rehabil Eng, 1996; 4: 337-346.

Additional Files

Published

2015-03-31

Issue

Section

MEDICAL BIOENGINEERING