Your best bet is a data recovery solution or software to try and get it unrelated
With 2008R2 you may be lucky and have a shadow copy on disk
If you have the transaction logs, you maybe able to rePlay them up to a point
I don't suppose you set up log shipping or mirroring for SQL did you?
But if that is the case that you don't have any copies then you will have to start entirely again from scratch and discard your old data
Or you can pay a consultancy group lots and lots of money to salvage data from the files and put it in to a journal type repository or maybe a more complex solution where it reads the physical ev's and index files to attempt to reconstruct the directory DB, but that will be a major expense
Also if you use vault cache and virtual vault for end users you may want to get them to backup their vault cache DB's as at least they have some of their data on an end user machine
https://www.linkedin.com/in/alex-allen-turl-07370146