I know this isn't really training related, but wanted to see if you Richard, and/or anyone else had any experience with this. 

I got this mare about 3 months ago and we've been doing groundwork, ground driving, and I've gotten in her and got a few steps. 

She set up due to all the rain we've been getting(thank God) and turned up lame about a week ago. We exhausted the resources of our local vet and wound up having to go about an hour and a half south for x-rays. Vet highly suspected abscess-ok fine. Soak, pack, wrap. 

But the skyline view showed severe navicular front right, moderate front left. She just turned 5 in April-a baby. 

This is all very new to me and I don't know what life might look like moving forward. She isn't yet broke and I'm a bit concerned that even if she can handle light riding, she may not be able to physically handle some of the groundwork it would take to get us to the point of light riding. 

Any thoughts?