I do not have any data or feedback specific to that, but generalizing what I know, I would say:
1- You should be able to use ICES-PEMF directly over your hardware without any problems. Initially I was concerned about this, but many people have tried it with metallic implants and in every case they report that it does not interfere, and in most cases seemed to help the implant engraftment, making the pins and screws feel much more solidly in place. About half of people did report a minor tingling sensation around the implanted metal, but only for the first 2-3 days, and it was not a disagreeable sensation. It tended to fade after a few days of use. Nonetheless, I would start at low intensity for short periods to be sure you tolerate it well.
2- Several people have reported to me that they have had very good results with ICES-PEMF reducing lymphodema after cancer surgical procedures, so perhaps they had similar difficulties (?) and their results suggest you might get some relief (?)