if that is the case i had a lot of nutrients when i went thru P/T on my knee. I would rather pass on that again. What bothered me was i thought i was going to be able to resume activities. I could not swim as water caused the knee to swell. I find it interesting that surgeons bad mouth stem cells etc but i am seeing more companies paying the insurance for it. Less costly. Again, stay away from those who cell the stem cells out of a box. These people are out there.