Hi James
I have had the same problem now since I fell over 2/01/2009 and as to date my wrist still hurts like hell ,and after physio at local hospital 2 cortisone injections into joint one being on wednesday just gone still no joy . I have been told it is probably dequervains and I'm awaiting follow up appointment with specialist to see what else can be done . Like you I cannot bear weight on my wrist and when I throw the ball for my dog I could scream with the pain that follows . I had xrays done,Wikipedia reference-linkMRI scan and nothing showed on either of them . I am considering getting an ultrasound done to make sure all tests have been done to try and figure out what is wrong . I sympathize with you as I do know how you feel and probably like me enough is enough . The pain is exactly the same now As It was in the beginning but now I have pain in shoulder . I hope you get it sorted .

Ajkeechy