At first glance, Josalyn Kaldenberg is like any other 11-year-old girl. But if you look just a little bit closer, you'll see her scar from surgery to get her bionic arm.
"I normally use my right arm but my left arm is stronger,” said Josalyn Kaldenberg.
In 2010, Josalyn was diagnosed with osteosarcoma in her right arm. Doctors thought she would have to amputate the arm but then the family met Dr. Douglas Letson at the Moffitt Cancer Center in 2011.
Josalyn received the nation's first expandable bionic arm.
"Her arm is functioning very well, in fact it's doing better than I expected, better than what I told her it would do," said Dr. Douglas Letson of Moffitt Cancer Center.
Doctor Letson will operate on Josalyn's left arm to lengthen it to match the right as she continues to grow. Josalyn’s mom says because of the arm, she can't ride a regular bike. But other than that Josalyn is just like any other little girl.
"She still has some limited strength in range and motion but it really doesn't affect her function at all towards what she can do in a normal day,” said Heidi Kaldenberg.