I had a total knee replacement 3 ½ years ago.  After 6 months, the knee started to swell and I began have a lot of pain.  I had been to various doctors and specialists and the general consensus what that there was nothing they could do.  

After the third session of low level laser treatment, the swelling started going down and by the 6th session the swelling and pain had reduced to point where there is little pain or swelling and I am coming off my pain medication. 

Ian, Cambridge