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Xi'an Jiaotong University Successfully Developed 3D Printed Movable Artificial Cervical Prosthesis
Jul 03, 2018

The research project of Professor Xi Xijing from Xi'an Jiaotong University completed the "Three-dimensional (3D) printing technology to reconstruct the clinical application and related research of spinal cord function", combined with metal 3D printing technology, developed artificial cervical spine prosthesis rotation technology, to solve A new idea is provided for the problem of loss of mobility after subtotal cervical and total decompression.

    The project leads the international level of governance, combined with metal 3D printing technology, to develop a personalized dome-shaped titanium cage artificial cervical vertebra, and proposes an artificial artificial vertebral body-intervertebral disc complex implant after the innovative subtotal corpectomy. The concept of reconstructing the function of the vertebral body unit has been developed to develop a movable artificial cervical prosthesis and an artificial caries joint, which will bring a new path for the 3D printing medical field.

    3D printing personalized dome titanium cage, eliminating the sharp edge of the traditional titanium cage, so that the dome titanium cage accurately fits the cervical anatomical features, and increases the contact area between the titanium cage and the vertebral body, and the long-term wearing stability is enhanced, compared with the traditional operation. The treatment rate is reduced from about 90% to 10% compared with 3D printing titanium cage collapse, which improves the curative effect.

    The 3D printing movable artificial cervical vertebra has another feature. It has innovatively proposed the concept of movable artificial vertebral body-intervertebral disc complex implantation and reconstruction of vertebral body unit function after subtotal corpectomy. The printing technology has developed a non-fusion prosthesis that can preserve the stability of the cervical spine and reconstruct the intervertebral motion, thus providing a new idea for solving the worldwide problem of loss of mobility after subtotal cervical decompression and decompression and fusion.

    Professor He Xijing is mainly engaged in the treatment and research of spinal cord injury and disease. He has accumulated clinical experience in surgical treatment of cervical spondylosis, spinal cord injury, cervical and lumbar disc herniation, spinal stenosis, and spinal deformity. He has obtained many scientific research achievements and won the second prize of Shaanxi Provincial Science and Technology Achievements. He has published academic papers in SCI Magazine, Chinese Surgical Magazine and Chinese Orthopedic Journal. The 3D printing technology implants can be combined with existing bones very well. Can shorten the recovery time of patients.

    The 3D dome titanium cage fits well with the surrounding bones, so it doesn't require too much "anchor". The implanted 3D printed dome titanium cage will grow firmly with the original spine. This also means that there will be no loosening in the future and the complications will be greatly reduced.

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