Rapp did not treat Ollson, but notes that of the patients he has seen with chondrosarcoma, none has had such a large area affected by the cancer.
Once diagnosed, the only treatment is surgery, Mayo surgeon Yaszemski added, because there is no known radiation or chemotherapy treatment that is effective against it.
Today, Ollson has survived and thrives, using a prosthetic pelvis and leg, wheelchairs, crutches, and sometimes crawling to get around. She's even back snowmobiling around her half-acre home in Balmoral, Manitoba.
The cancer could return but, for now, she is in remission and doing everything she can to live life to the fullest.
"There really isn't a whole lot that stops me," she told the Winnipeg Free Press.
Yaszemski said she has "recovered to the best extent possible, given the nature, location and size of the tumor that she had. She will need and receive follow-up for life" because the tumor could return.
Since her surgery, three other patients have received the "pogo stick" rebuild, according to the Winnipeg Free Press. Only one has survived.