What Causes Itching In The Lower Legs After Hospitalization?

I was involved in a high speed MVA in which I fx my pelvic ring, multiple ribs and my left hip. I also sustained a Grade IV lacerated spleen and still have my spleen which appears to be totally healed as of last year, prior to that my injury should up as a blood clot which reduced in size. I am told I have to have annual ultra sounds of my abdomen to check for possible aneurism. I am also checked annually for DVT in both lower extremities. I am doing pretty well but still have this itching involving my lower legs that drives me insane. I noticed this problem about 3 months post accident . My first thought was that I caught something in the hospital but there evidently isn t anything to indicate this or anything else so what can this be. I had a no medical person who also fx their pelvis and they said it s something called phantom itching . I couldn t find anything on this . Any ideas? Also in 2009 I had 3 full body CT Scans and an additionCT scan in 2010. I refused any further X-rays bc I was afraid of anymore radiation. I received all of this radiation bc my life was at stake. It s been suggested I have back surgery which is done with fluoroscopy am wondering if I should decline but how wonderful it would be if it could alleviate my pain. Thank you for any advise or help you can give me. Sincerely Jewell