Japanese surgeons presented accurate 3D models of the kidneys affected by the tumor

At the Congress of the European Association of Urology (EAU) in Stockholm, Sweden, surgeons from Japan announced Creating models of kidneys affected by a tumor using a 3D printer for use in modeling cancer surgery.

3D model of a kidney with a cancerous tumor

The advertised technology of 3D printing begins its journey in the clinical and surgical areas. In 2012 researchers used 3D-modeled models of blood vessel networks as part of a step toward the regeneration of the whole organ.

However, surgeons from the University of Kobe used 3D printing to obtain accurate scale models of cancer-affected kidneys.
Kidney cancer is the 8th most common cancer among adults. Usually he is treated surgically, but a complex and intense operation requires high speed and accuracy.

Using computerized tomography, surgeons created scanned 3D pictures of the kidneys of their patients. Based on them, a transparent model was printed on the 3D printer. Transparency was needed for surgeons to see the exact location of the blood vessels in the kidneys. This later very much helped them.

Then, surgeons were able to simulate a kidney operation before performing a real operation, which was carried out with the help of a robot.

Using this practical model system gave scientists a three-dimensional anatomical understanding of the kidneys and tumors, which allowed the surgeon to work on a smaller area.

According to scientists, this allows you to shorten the break in blood supply during an operation to remove the tumor in the kidneys. The normal average duration of this interrupt is 22 minutes.

But in the first workout on 3D-printed kidneys, surgeons were able to shorten the period of interruption in the blood supply to just 8 minutes in one case.

So far, technology remains expensive, adding 500-1500 US dollars to the cost of the operation, but scientists hope that with widespread use, costs will decrease.

According to representatives of EAU, the new process of 3D printing with proper development can become part of the curriculum. The new methodology improves and facilitates the study of robotic surgery.

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