When Annette Rios was diagnosed with chondrosarcoma, a type of bone cancer, doctors told her they’d need to amputate her right leg just below the knee.

“The cancer had formed in the small bones of my heel,” Annette said, “and the doctors told me amputation was the most effective way to remove the tumor along with any cancer cells that may have spread.”

The surgery, while necessary, also came with a drawback known as phantom...