Force analysis and experiment on ACL in the knee

Author

Hu Yan ; Wei Jun ; Feng, Feng ; Zong Xiju ; Li Shi

Author_Institution

Control Sci. & Eng. Dept., Univ. of Jinan, Jinan, China

fYear

2011

fDate

22-24 July 2011

Firstpage

3878

Lastpage

3881

Abstract

Aiming at the problems of the anterior cruciate ligament (ACL) reconstruction in knee joint, such as deficiency in effective effect evaluation and insufficiency in operation safety, a zero gravity based force-measuring robot is developed to measure the pre- and post-operative tension of the knee joint ACL. The requirements for the robot´s configuration and control are analyzed with regard to the ACL operation environment. Then the mathematical model of the ACL lateral force is deduced. The mechanical configuration and the control system design of the force-measuring robot for knee joint ACL are presented in detail. Lastly, experiments on measuring precision of the displacement and force of the mandril, and the post-operation evaluation on the ovine bone, are implemented. The results show that the robot is effective for ACL reconstruction evaluation and the mathematics model of ACL forced in lateral direction is valid.

Keywords

biomechanics; biomedical measurement; bone; force measurement; medical robotics; physiological models; ACL lateral force; ACL reconstruction; anterior cruciate ligament reconstruction; control system design; force analysis; force-measuring robot; knee joint ACL; mandril; mathematical model; mechanical configuration; ovine bone; post-operative tension; robot configuration; Conferences; Electronic mail; Force; Joints; Ligaments; Navigation; Robots; Anterior cruciate ligament; Biomechanics; Force-measuring robot; Operation evaluation;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (CCC), 2011 30th Chinese

Conference_Location

Yantai

ISSN

1934-1768

Print_ISBN

978-1-4577-0677-6

Electronic_ISBN

1934-1768

Type

conf

Filename

6000423