Yeah, keeping my fingers crossed that thread doesn't happen either. If that screw is bad, not clear on the exact fix, but sounds like once they get the screw out and debrive the screw tunnel, they'll have to fill using a bone plug to affix the femur end of my ACL graft in place, and hope the graft doesn't get too upset and/or beat up in the process. And, another 6 months off the bike while the bone plug incorporates.