Hello, I Have Been Dirrerant Opiates For 14 Yrs. As

Hello, I have been dirrerant opiates for 14 yrs. As much as 440mg oxycontin in the 90s, now taking diladid 4mg every 6hrs. I'm not getting the pain relief I should. I'm talking to my Dr. about an implanted pain pump. Whats the pros& cons. I had an E-Coli infection/absess in my spine that almost killed me and desroyed my spine. I can't find a Dr. that will consider working on it, they just want to treat it with pain meds. I'm tired of the rollercoaster ride and being under mdicated probally due to tolerance. Whats your opinion?