how much i hate to say ti why not stick with a crossbow i understand the feeling you get when you bow hunt
but no shame in making the switch with your proplem

this jan i had knee surgery due to the fact i fell in nc two years ago and tore the cart. in my right knee.
After sitting in my stand and hiking i cam to know that. I went to the doctor after some phys. therepy which did nothing.
They did a mri and yeap two tears one infront and one in back.
So after going to the surgen i had surgery.

It did help alot but it still hurt just differnt then before not as bad. And more of a constaint pain the a severe pain every so often.

Good luck and i hope everything works out