Screw out of cheek implant. What can be done to treat this? (Photo)

I had silicone cheeck implants placed 6 years ago. I started having pain in my left side. The dentist did a 3 d X-ray which showed that the screw was not on my bone on the left side. My surgeon retired. My question is what can be done ? Will I need them out and replaced ? Can they only fix the one side ? Also a hall park of the price as I'm financially strapped. I'm devastated.