Jiffy knee is a form of subvastus surgery which avoids cutting the muscles and tendons. I mentioned to my surgeon (who uses a robotic subvastus approach) that a friend was getting a Jiffy Knee. He said that it depended upon the skill of the Jiffy Knee surgeon. I mentioned the name of the Jiffy Knee surgeon that my friend was using and he said that he had not seen any bad results from his work.

We continued chatting (he was in a chatting mood) and we both agreed that even more important than the approach was the experience of the surgeon. We both felt that substantial successful experience in the particular methodology was the most important requirement. He said this even though he himself was an engineer with numerous patents and he is the primary inventor of the new gold standard for hip replacement (Superpath). Here is an interesting web comment from a knee surgeon:
https://drmichaelwind.com/subv-knee-vs-subvastus-knee-vs-jiffy-knee-whats-the-difference/
The particular Jiffy Knee surgeon my friend is using has done thousands of them.

I am bone on bone on my right knee and it is deformed to the side as well so my surgeon has to straighten it out as well. I will see soon how it went (September 25th is my surgical date).