PHOTO: MAYO CLINIC
A year ago, an 11-year-old girl named London Secor had surgery at the Mayo Clinic to remove a rare tumor located in her pelvis. In the past, surgeons would have considered amputating one of Ms. Secor’s legs, given that the tumor had spread to the bone and nerves of her sacrum and was encroaching on her hip socket.
That didn’t happen this time, however, due largely to advances in 3-D printing.
Before the surgery, Mayo printed a 3-D model of the girl’s pelvis, scaled to size and showing her bladder, veins, blood vessels, ureters and the tumor. Members of the medical team were able to hold the model in their hands, examine it and plot a surgical approach that would allow them to remove the entire tumor without taking her leg.
“There is nothing like holding a 3-D model to understand a complicated anatomical procedure,” says Peter Rose, the surgeon who performed the operation on Ms. Secor, an avid swimmer and basketball player from Charlotte, N.C. “The model helped us understand the anatomy that was altered by the tumor and helped us orient ourselves for our cuts around it.”
The pelvis model was one of about 500 3-D-printed objects created at the Mayo Clinic last year. It’s part of a web of organizations racing to find ways to use 3-D printing to improve health care.
Some research institutions, including the Mayo Clinic, have set up on-site printing labs in partnership with such makers of 3-D printers as Stratasys , 3D Systems and Formlabs. General Electric Co. andJohnson & Johnson are diving in, too, with GE focused on 3-D printers and translating images from various sources into 3-D objects, and J&J focused on developing a range of materials that can be used as “ink” to print customized objects.
Using data from MRIs, CT scans and ultrasounds, as well as three-dimensional pictures, 3-D printers create objects, layer by layer, using materials ranging from plastics to metal to human tissue. Beyond organ models, the printers are being used in health care to create dental and medical implants, hearing aids, prosthetics, drugs and even human skin.
Research firm Gartner predicts that by 2019, 10% of people in the developed world will be living with 3-D-printed items on or in their bodies, and 3-D printing will be a central tool in more than one-third of surgical procedures involving prosthetics and implanted devices. According to research firm IndustryARC, the overall market for medical 3-D printing is expected to grow to $1.21 billion by 2020 from about $660 million in 2016.