"after a chainsaw accident in 2001. where i ran the saw under my knee cap down into the joint. i was left with a permanent limp. which in turn went into my back. i have tried all kinds of pain medicines. kadian, percocet, hydro&#039;s you name it. the doctor put me on 120 avinza. after finding the right dose. i can finally live with what pain i have. i love this medication."