Has anyone delt with a curb ligament injury?  All the good bad and ugly please.

I'll have to google this.

Do you mean your horse has a curb ?  (That's thickening of the plantar ligament on a hind leg). Usually curbs come from sickle hocks and are cosmetic. PEMF, laser, mag boot , Super Green, anything to help blood flow would help. 

Dr. Google, DVM suggests full recovery after an appropriate time of rest, ice, and compression followed by a therapy for scar tissue. 

Yes and thank you CanCan.  Trainer said he started to feel weak in the hind end.  Took him to Dr Buchanan and he diagnosed a curb.  Praying he will still make a barrel horse.