hello doctor , about a year ago i had an cervical spine fusion,c-3, c-4, c-5, & c-6 . can you show me a diagram of what this looks like ? the reason i/m asking , is because i was asked to get an x-ray and the doctor called me and told me a screw is loosening - top right side at c-3. Now i m having trouble swallowing , and my throat is in a lot of pain !!! i am having a ct scan monday at 7:45 a. m. , or do you think i should go to emergency room? YYYY@YYYY i can not pay for an answer !!! i am sorry.