The comparison of strain distribution on Thai normal, varus and total knee arthroplasty inserted femoral bone

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Published: Oct 7, 2018
Keywords:
Total knee arthroplasty equivalent of total strain finite element analysis varus femoral bone

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C. Somtua
Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakhonpathom, Thailand
P. Aroonjarattham
Department of Mechanical Engineering, Faculty of Engineering, Mahidol University, Nakhonpathom, Thailand
K. Aroonjarattham
Department of Orthopaedic, Faculty of Medicine, Burapha University, Chonburi, Thailand

Abstract

Knee is the largest joint in the human body and it has been heavily used, caused to the osteoarthritis. When the knee is more degenerate, it cause pain in every movement. The treatment has several methods such as Knee Arthroscopic Surgery, High Tibial Osteotomy and Total Knee Arthroplasty. This research aims to evaluate the strain distribution on the Thai femoral bone with the normal leg, bow-leg and inserted total knee prosthesis under the daily activities, as walking and stair-climbing by finite element analysis. The results were compared the maximum equivalent of total strain on the medial and lateral side in three cases. The results showed that the ratio of strain distribution between medial and lateral side on Thai femur with normal bone, varus bone and bone inserted TKA under walking condition are 67.27%, 84.01% and 70.68% respectively; and 60.96%, 82.74% and 68.19% respectively under stair-climbing condition. After the surgery, the ratio of strain distribution on the varus femoral bone decreased and approached that of normal femoral bone.

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How to Cite
Somtua, C., Aroonjarattham, P., & Aroonjarattham, K. (2018). The comparison of strain distribution on Thai normal, varus and total knee arthroplasty inserted femoral bone. Journal of Research and Applications in Mechanical Engineering, 2(1), 42–50. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/149428
Issue
Vol. 2 No. 1 (2014)
Section
RESEARCH ARTICLES

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