Do you suppose CBD would do it?

It looks like Israeli scientists used CBD in their study.

“We found CBD alone to be sufficiently effective in enhancing fracture healing,” Gabet said. “Other studies have also shown CBD to be a safe agent, which leads us to believe we should continue this line of study in clinical trials to assess its usefulness in improving human fracture healing.”

CBD is not psychoactive, so you wouldn't get "high" from it. Here in Canada, where the stuff is legal, there are different brands with different levels of CBD concentration. The scientists used animals in their study, but given that humans also have a natural cannabinoid system, then it's possible that we also use them to heal from injuries. So, CBD extracted from the plant may also work on humans.