"i have an osteotomy in my left tibia.  the surgery was a year ago, and the break has not filled in with new bone.  i was prescribed the patches with the caveat  that &quot;they may not work.&quot;  they work very well and my pain has decreased between 75-90%.  if i use them as directed (1 every 12hrs)  they are most effective.  there are some issues with the adhesive on the edges but i&#039;ve found if i warm them with my hand they stick better.  true, there is very little movement of fabric over the area as with back issues.  i work with a personal trainer 5 days a week so the leg gets a lot of use.  mine is an unusual use for these patches, but they are definitely worth a try."