What is the process of using robots for vertebral body shaping surgery?


It is not uncommon for domestic hospitals to use orthopedic robots for vertebral body shaping surgery. What is the implementation process of this surgery?

Before addressing this issue, we need to first understand what orthopedic surgical robots and vertebroplasty are.

Orthopedic surgical robots, also known as orthopedic surgical navigation and positioning systems. This device consists of a host, a robotic arm, surgical planning and control software, an optical tracking system, a main control trolley, and a navigation and positioning toolkit. It is mainly used to assist in the positioning of surgical instruments or implants in spinal surgery, orthopedic trauma, or percutaneous surgery with the assistance of a robotic arm.

Vertebroplasty, also known as percutaneous vertebroplasty (PVP), is a minimally invasive spinal surgery that involves making a small incision of approximately 3mm on the surface of the skin. The surgical tool enters the diseased vertebral body along the bone structure through this incision, and then injects bone cement (polymethyl methacrylate) into the diseased vertebral body to alleviate patient pain, restore vertebral height, increase vertebral stability, and strengthen the vertebral body.

Using robots for vertebral body shaping surgery

Robot assisted vertebral body shaping surgery is based on the intelligent robotic arm of a surgical robot, imitating the steps of percutaneous bone cement vertebral body shaping surgery. It limits the puncture point, direction, angle, and depth, allowing the puncture needle to enter the target area through a safe path, and then inject bone cement to assist in surgical design and accurately guide surgical implementation. Taking the orthopedic surgical robot PL300B from Puai Medical as an example, the process of percutaneous vertebroplasty assisted by it for a thoracolumbar compression fracture is as follows:

(1) Firstly, use the Puai Medical 3D C-arm to collect three-dimensional images of thoracolumbar lesions and perform three-dimensional reconstruction of the injured vertebra;

The process of using robots for vertebral body shaping surgery 1

(2) Doctors develop personalized surgical plans and perform path planning on the robot navigation interface;

(3) Insert a guide needle according to the set position and needle insertion direction;

(4) After all guide needles are implanted, perform pedicle and vertebral canal placement along the direction of the guide needles to establish a channel;

(5) Inject bone cement along the channel to restore vertebral height and observe its diffusion. After achieving satisfactory results, stop injecting bone cement.


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