AMS Spring 2023

French Doctor Implants 3D-Printed Spine Cage to Perform Spinal Fusion Surgery

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A surgeon in Lyon, France performed the world’s first spinal-fusion surgery recently. Dr. Vincent Fiere performed the surgery at the Hospital Jean Mermoz using customized, 3D-printed spine cages. Fiere performed the Web-MockUp_05-012spinal fusion surgery to correct a patient’s severe spinal deformities. During the surgery, Fiere replaced discs that were damaged with spinal cages to separate the vertebrae and align the spine. He then inserted a curved spinal rod to help maintain the new alignment.

“The intersomatic cage, specifically ‘printed’ for my patient, positioned itself automatically in the natural space between the vertebrae and molded ideally with the spine by joining intimately with the end plates, despite their relative asymmetry and irregularity,” said Dr. Fiere.

The intersomatic cage that Dr. Fiere used was the UNiD ALIF. It was created by Medicrea, a French company that specializes in the design, development, manufacture and spine2distribution of orthopedic implants dedicated to spinal surgery. UNiD ALIF cages are made of Poly Ether Ketone. They mimic the anatomic details of a patient’s vertebral plates. Medicrea used 3D-images of the patient’s spine to create the customized cage. Dr. Fiere also used Surgimap Spine, another Medicrea tool, to help him perform the operation.

“I could also very precisely perform the restoration of the disc height and simultaneously correct the degree of lumbar lordosis using plans I had made several days before the operation with the help of the Medicrea Surgimap software tool.”

Medicrea’s software and research may eventually lead to additional implantable devices that are capable of reproducing pieces of the spine. These future developments seem promising according to Denys Sournac, Medicrea’s chairman.

“Continuing our trajectory since the launch of our PASS LP UNiD rods which are made to measure for each patient, Medicrea confirms its position as the pioneer of intelligent spinal implants, perfectly adapted to the morphology of each patient’s spinal column and developed in a rational and planned manner to restore the fundamental mechanical equilibrium of the human body,” he said. “By providing pre-planned customization, our goal is to improve patient outcomes and allow our surgeons customers to complete their plans in advance and solely focus on executing their strategy in the operating room.”

This is yet another awesome use of 3D printing, which is helping to make the lives of patients less painful, while providing researchers a stepping stone for future applications within the field of spinal medicine.  Let us know what you think about this procedure in the 3D printed spine cage forum thread on 3DPB.com.

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