Dr Liu is an amazing Doctor! I've had severe back issues for almost 20 years. Most doctors couldn't understand how I was even able to walk, let alone try to live a normal life. I was living on pain meds and fighting the pain until my left leg went completely numb, and stayed that way for several months. I knew it was time to do something and I called Dr Liu. His staff walked me through everything. The surgery went well and I recovered within 2 weeks of surgery. If you're like me and afraid of surgery, so you just keep waiting in pain. DON'T!!! Call Dr Liu and his amazing staff!!! You won't be sorry you did. Take it from me (3 weeks into recovery and doing great)...