I have had this procedure done by my physical therapist who is highly qualified to perform this procedure. I have had work done on my knees (found substantial relief in two visits) and back (substantial improvements immediately and long lasting). I have recommended dry needling to several colleagues who have also found relief for their particular issues. As with any procedure a patient must be diligent and research the techniques and practitioners to find the best qualified physical therapist to perform the work. I did so and am pleased with the results both the therapist and the results!