My daughter had a leg injury from a dirt bike accident and no one can figure out what is wrong with her.

Her lower leg is sometimes very painful with swelling, it gets stone cold, changes color, looses pulse in foot and she gets some numbness in her toes. It is not a continuous thing, it comes and goes. When it first happened, the doctor said it was an arterial spasm and he gave her blood pressure medicine by IV and that took care of the symptoms for about 6 months. They came back with a vengence after 6 months and she spent a week in the hospital trying to find out what was going on with her leg.

We have had a CT scan, Dopplar, MRI, MRV, MRA, blood flow studies, xrays, blood workup and observation.

No one can tell me why my daughter's leg is trying to die on her (that's the only way to describe the symptoms she is having in one fell swoop).

Does anyone out there have any idea what could be causing this problem?

I'm getting desperate!!!!!

Thanks,
MB