Injuries are a bitch, and I hate seeing these threads and not being able to chime in with something clear and positive, but it's just not as straightforwards as a compound increasing collagen synthesis = good. There's a lot more to the complex processes of healing, and honestly, our body is kind of great at it.
There's some good evidence of anabolics like anavar in burn patients' recoveries, but that's a lot different from a soft tissue or ligamentous injury. I don't know. Of all the anabolics, nandrolone, and of all the peptides, rhGH, seem good for healthy tissue growth (with the caveat that nandrolone also increases LVH/leads to myocardial infarction likely by the same pathways, and GH likely to overall organ growth by the same pathways)... but that's not injured tissue.
Tough pill to swallow for all of us, is time off, good physical therapy, and nutrition, are probably the best bets for a good recovery. Otherwise, modern medicine would be using anabolics if they were a good choice already I think.
@Bumpygooch I am interested in the study you mentioned though, if you have a link. It's ongoing so no results yet right?