Thought I would update on the above now that It has been in place since 2nd March 2015. I was offered the opportunity to have the above implanted into my lower back to try to reduce the severity of the phantom pains that I was getting in the feet that I do not have (bilateral below knee amputee) the implant has been in place for 3 months now and in that time I have been able to reduce the amount of pregabalin that I took from 450mg per day to zero and I am now going to start to reduce the amitriptyline that I take, the pains have not completely disappeared but the frequency and severity have certainly reduced, before this I would get what I described as something similar to being tazered in different parts of the foot and have not had a single instance since having this procedure.
I know it is not for everyone but the benefits that I have felt make me believe that it is something for people to discuss with medical practitioners if they feel that they may benefit from this.