Biomechanics of the Knee Joints

I'm currently doing Biomechanics of the Knee Joints project. Any suggestions of what 's the best type of the knee joint structure?

pharseid5 years ago
In Wearable Robots: Biomechatronic Exoskeletons they describe a knee joint using a four bar linkage. It follows the motion of the knee far better than just a rotational joint (like the sort in my knee brace).
Best in the sense of a mechanical equivalent to a human knee joint.
That is to say an artificial equivalent (a simple rotational joint not that great).
"best" related to what ?

What we've evolved with is pretty efficient.