Not sure what happened here

Okay, I have no idea what is wrong with this Barbie, but Savanna says she has always been like this since the day she got her. I asked Savanna if she remembered where the Barbie came from and she actually remembered! Savanna has this very keen memory and has even kept up with things from back when she was a baby. She said Aunt Amber gave it to her when mommy & Daddy (Brad and me) got married. That was almost two years ago! So Amber, can you please explain what type of Barbie this is? We have laughed our butts off for the last two days at this doll. No matter what I do the Barbie will not straighten up. Her hips and arms just stay stuck in the same position. Here are pics to explain.