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Medical Image Analysis 5 (2001) 317330 www.elsevier.com/locate/media

Summary: Medical Image Analysis 5 (2001) 317330
A computational model of postoperative knee kinematics
*E. Chen, R.E. Ellis , J.T. Bryant, J.F. Rudan
Computing and Information Science, Mechanical Engineering, Surgery, Queen's University, Kingston, Ontario, Canada K7L 3N6
Received 18 December 2000; received in revised form 28 May 2001; accepted 18 July 2001
A mathematical model for studying the passive kinematics of total knee prostheses can be useful in computer-aided planning and
guidance of total joint replacement. If the insertion location and neutral length of knee ligaments is known, the passive kinematics of the
knee can be calculated by minimizing the strain energy stored in the ligaments at any angular configuration of the knee. Insertions may be
found intraoperatively, or may come from preoperative 3D medical images. The model considered here takes into consideration the
geometry of the prosthesis and patient-specific information. This model can be used to study the kinematics of the knee joint of a patient
after total joint replacement. The model may be useful in preoperative planning, computer-aided intraoperative guidance, and the design
of new prosthetic joints. 2001 Elsevier Science B.V. All rights reserved.
Keywords: Knee; Computer model; Simulation; Total knee arthroplasty; Kinematics
1. Introduction the anterior cruciate ligament (ACL) and, depending on the
prosthesis design, may also involve removal of the poste-
One of the major goals of total knee replacement is to rior cruciate ligament (PCL). The medial collateral liga-
restore the normal function of the knee. The success of ment (MCL) and lateral collateral ligament (LCL) are


Source: Abolmaesumi, Purang - School of Computing, Queen's University (Kingston)


Collections: Computer Technologies and Information Sciences