Parametric modelling of a knee joint prosthesis.
This paper presents an approach for the establishment of a parametric model of knee joint prosthesis. Four different sizes of a commercial prosthesis are used as an example in the study. A reverse engineering technique was employed to reconstruct the prosthesis on CATIA, a CAD (computer aided design) system. Parametric models were established as a result of the analysis. Using the parametric model established and the knee data obtained from a clinical study on 21 pairs of cadaveric Asian knees, the development of a prototype prosthesis that suits a patient with a very small knee joint is presented. However, it was found that modification to certain parameters may be inevitable due to the uniqueness of the Asian knee. An avenue for rapid modelling and eventually economical production of a customized knee joint prosthesis for patients is proposed and discussed.
Khoo
L P
LP
School of Mechanical and Production Engineering, Nanyang Technological University, Singapore.
Goh
J C
JC
Chow
S L
SL
D044466:Asian People; D017076:Computer-Aided Design; D006801:Humans; D007719:Knee Joint / Q000033:anatomy & histology; D007720:Knee Prosthesis; D008954:Models, Biological; D011474:Prosthesis Design; D012984:Software