I have a neurostimulator implanted in '08. June '11 battery pack broke through skin and had to have entire system removed. My dr was on vacation and his collegue did revision. Collegue said battery wasn't implanted deep enough to begin with. Dec '11 had surgery to put system back in. My doctor never spoke to me between Jun and Dec. Day of surgery didn't even have facts straight. After surgery felt things were wrong and leads don't work correctly. Sunday battery flipped and is migrating from new pocket to old pocket. In pain as tissue tears as it moves. Went to dr on Tue where I found out everything he said he was going to do in Dec to prevent battery from rupturing again he never did. x-ray shows leads not placed as instructed. Now I'm facing a repeat surgery to repair.