i have had prp, plasma rich platelets, injected in my knees, had some trauma, and helped a lot. They take blood from your vein, then put through a centrifuge, until the plasma left, then in my case injected into my knees. also this clinic does stem cell extraction from you adipose tissue. after the extraction, this can be injected, sometimes along with prp into the areas, then the rest is frozen and stored in a stem cell bank for you to use later. stem cell extraction is much more expensive than prp. and this clinic continues to get new technologies that help with healing. some orthopedic surgeons are doing these type procedures too, check your area and see what is available. Sparrow Health&Performance, birmingham,AL. and also huntsville,AL. Rebecca Rogers, a wonderful conservative, owns the clinics. in birmingham (205)783-1020. my name Victoria Walters, worth a try, perhaps will prevent the surgery