3ds Max Animation :: Locking Bones In IK Chain?

I am working with a rig that has arms and legs in which the upper and lower sections (Thigh, Shin, Upper Arm, Forearm) are composed of chains of bones in and of themselves. I have included a screen shot to show a simplified example of what I mean.

When working FK, of course, this is no problem at all, but sometimes I'd like to be able to use IK solvers to make placement tasks easier. Unfortunately, applying an IK solver means the bones forming the upper and lower parts of the limb also bend as the limb bends. In the screenshot, the bones on the left are an example of what sort of limb I am dealing with, the bones in the middle show the effect of using an IK solver (note the bend in the upper and lower leg) and the bones on the right show what I would like to achieve using IK.

So, is there any way to lock the motion of those bones composing the upper and lower parts of the limb so they won't bend as part of an IK chain? I'm using Max 2010 by the way.