Hi, (not sure where this post belongs)

My father just had orthoscopic surgery on his left should (rotator cuff, 4.5 hr surgery) and now he is suffering from numbness to his lower extreminities and severe back pain. The doctors are stumped and the surgeon feels this was not caused by his surgery. His blood pressure was very high through the night, but has seemed to come down a bit today. None of the pain releivers they give him are working, and nobody seems to have any answers. A doctor friend of mine suggested it could be the sciatica nerve from sitting so long? But it seems that would be better now as it is 24 hrs later. Any help will be appreciated.