I can't see any major advantages of doing a WB scan. Surgeons...

I can't see any major advantages of doing a WB scan. Surgeons decide to operate based primarily upon the patient's symptom severity and level of dysfunction (rather than what they find on a scan). So long as some sort of pathology shows up on a scan, they can justify opening the patient up. What the surgeon finds once inside is often quite different to what is found on a scan, regardless of the technology used. But it's not like having a WB image will change what they end up doing during the op. If the patient is in a lot of pain they'll still go ahead with it.

Happy to be corrected if I have the worng end of the stick, but I can't see the advantage over standard CT. Maybe the units are cheaper, smaller or easier to use?