I Have Torn My ACL For The 2nd Time, The

I have torn my ACL for the 2nd time, the 1st 11 years ago. I have been told the screws to hold the hamstring graft in place have been found to erode the bone. So I am told I will have to have a bone graft to fill the original holes the in 3-4 months the recon. I work freelance and forgot to ask the dr what the recovery period for the bone graft is, he is now on holidays.Can I work soon after the bone graft?