Do fractures have there own "string" (I hope that's the right TB modding term) like dismemberment's do? Here's an example:

joint l_knee
pos 1.20 1.00 0.80
dm_threshold 1000
point_hit 0
point_dm 0

Focus on this: dm_threshold

Do fractures have there own string, too?

Perhaps it's this: frac_threshold

If "frac_threshold" isn't the string, let me know what it is, please. Thanks guys.

Not as far as I know, I remember trying to figure it out before. Though it could be a pretty easy feature for them to add in future versions.