Jeff Conaway Hospitalized -- Badly Injured

1/18/2010 9:30 PM PST
Jeff Conaway from "Grease" was rushed to a Los Angeles hospital today -- and according to his girlfriend, he suffered devastating injuries.

Jeff's girlfriend, Vikki Lizzi, tells TMZ Jeff fell down a staircase this morning at his home and suffered a broken hip, a broken arm, a fractured neck and a brain hemorrhage.

Vicki says Jeff is currently in the emergency room and will undergo surgery on his broken hip.