Of course this is a phenomenal treatment assuming it works as planned, but isn't there a performance enhancement angle that needs to be considered for it's inclusion in professional sports?
So, the kangaroo tendons are potentially better than traditional implants, the question you pose so is whether or not they are better than the original, human ones. And I somehow doubt that, but I am just a semi-engineer with a ruptured, but still working, knee and not a physician.
I look forward to finding out either way
In short, this is far, far from being a concern, as cartilage will fail even if the ligament can take it. Similar issue as steroid-user muscle growth outpacing tendonds.
Medicine can't repair anything. I will repeat this for the 1000th time, if you think we have tech realize that we - can't fix an artery, re-attach a nail to the nail bed, fix some crystals on teeth (enamel), regrow hair, etc, let alone re-attach a nerve (though we do bypasses now). Basically, people way overestimate the reality of what they can do when they hear 3d organ printing myths.
I would love this, if only so I have less chance of going through a fix again. I received a patellagraph to fix a torn ACL, and the rehab is what makes it such a PITA. It took 9ish months to be cleared for sports again, and I didn't feel confident in my knee until 18 months or so.
viva la meta-human!