With respect to your hopes on 100% improvement - internationally our experience has shown success in the 70 -85% range depending on the criteria.Currently we are investing a lot of time evaluating our failures. One strong school of thought is that the failures fall into 2 categories, atypical pf i.e nerve related problems or an underlying condition such as avascular or necrotic bone. The drs. who are proponents of this theory have encouraged us to do another study using higher energies such as we use on nonunion fractures and expanding the treatment area. We hope to start this study soon. It will involve pretreatment MRI's to quantify the condition/vascularity of the underlying bone.
Understanding our failures is critical if we are to ever improve upon our device or the technique.