I am having TKR in late September. My surgeon uses a subvastus approach which is basically what Jiffy knee does. He also use the CORI robot and the Journey II implants (he decides which one when he opens me up and determines the condition of my PCL and ACL).

My advice is to look for a doctor who uses the subvastus approach (going behind the muscles instead of cutting them) AND one who has successfully done hundreds (preferably thousands) of these particular procedures. I was chatting with my surgeon who is the primary inventor of the newest and least invasive hip replacement approaches (Superpath) and he agrees with those two steps but even though he is an inventor he believes that the second requirement (the experience requirement) is the most important.

There are many approaches to how to do a TKR including how and where to cut, whether a minimally invasive approach is used, whether a robot is used, which robot, which type of implant is used, whether the surgeon is going to try to save the ACL and/or the PCL AND -- MOST IMPORTANTLY -- how often the surgeon has successfully done his TKRs.

Do your research. If you can find a surgeon who does everything, go for it. If not, remember the advice that the most important requirement is the experience one!