How would you fit ski boots to accomodate for tibial vara (or varum, whichever the case may be)? Would you cant the boot to lessen the GRF on the lateral side of the foot? If not corrected/accomodated for, wouldn't the extra force on the lateral side of the forefoot cause pronation of the STJ? If this is the case, would it not cause internal rotation of the tibia as well, placing additional stress on the collateral ligaments of the knee, especially the MCL?
I was thinking about how best to solve this situation, and my solution, assuming no other issues, would be to cant the boot the appropriate amount so that the GRF is even across the entire forefoot. What do you guys think?
I ask because it seems that internal rotation of the tibia leads to a forward thrust of the pelvis, which leads to terrible posture, lumbar problems etc.
Is tibial vara not similar to genu vara? Is genu vara just a more excessive version of tibial vara or is there some other reason there is a differentiation?
Would posting or wedging the FF in a rigid, bony FF varus still be a bad idea or does this only apply to a FF supinatus?