Videos by ComicBook.com “It’s just a complicated fracture I broke my C1 in two places so that Jefferson fracture, is what it’s called, it just takes a little bit more time to heal.

A Jefferson fracture is another name for a bone fracture of the front and back arches of the C1 vertebra. The C1 vertebra is the top one, closest to your skull.

Thomas Jefferson University Hospital radiology professor Levon Nazarian, MD, tells WebMD that heel ultrasound may represent a safer alternative to bone density X-ray testing for some patients.

Thomas Jefferson University Hospital radiology professor Levon Nazarian, MD, tells WebMD that heel ultrasound may represent a safer alternative to bone density X-ray testing for some patients.