Computer Model of the Female Knee Joint

Despite extensive research, no single factor or group of factors has emerged as a viable explanation for the gender difference in non-contact ACL injury incidence.  Biomechanical performance differences between males and females during cutting and drop-landing tasks have received considerable attention recently.   These studies suggest that females execute high demand activities in a manner that makes them more prone to an ACL rupture.  The major weakness of these studies is that differences in landing postures and neuromechanical responses can be detected, but their meaning cannot be directly interpreted in terms of ACL force. 

COBR researchers are using advanced computer modeling techniques to compute the force in the ACL during landing.  While modeling techniques have been used to study walking, jumping, and even landing from a jump, all existing knee models are based on male anatomy.  The new model will be a major improvement over existing computer models because it is being created using female anatomical and strength data, allowing us to answer gender-related questions.  The general objective of this study is to develop a three-dimensional detailed musculoskeletal model of the female knee, complete with female bony geometry, joint laxity, and muscle geometrical and mechanical properties.  This model will be used to calculate muscle, joint contact, and knee ligament forces during a landing from a jump.  Once validated, the model will be used to evaluate the effects of landing posture and knee joint geometry on the ACL force during landing.

Contact: Michelle Sabick, PhD msabick@boisestate.edu

Last Updated 01/28/2008