So, what does that say about the medical staff/trainers? How could Kirby allowed to play if his knee wasn't healed enough? Or, is it completely unrelated?
If the surgery is successful and rehab monitored and successful concluded and mobility is back then there is no reason to assume the athlete should not return to his sport.
They set benchmarks and work in rehab toward reaching those benchmarks — eg standing jump, long jump, leg press weight, etc. I don’t think that the Habs would’ve been reckless with his rehab protocol.
We don’t have precise knowledge of the body to the point where there are binary answers. The science of MRIs (often used to examine soft tissue) is outrageously unintuitive and sometimes no number of scans can give the definitive answers we want.
My point is maybe the knee was more prone to injury due to imperfect reattachment of the ligaments. You can’t control that. Or maybe the latest impact would’ve shredded his ligaments all the same. You can’t control that either.
Some athletes claim they never again feel stable on their repaired knee. It could simply be the case where this was extremely relevant for Dach and it would explain his poor and timid efforts for most of the season far more than assuming he still had reduced mobility or was still injured.
I once took medication that “dried me out” and it particularly affected my left ankle. To this day, five years after I took those meds, my Achilles still feels tighter and less elastic. The body is complex.