The first case of 3D printing technology of Beijing Medical Third Hospital involved the first cervical spine surgery

The first case of 3D printing technology of Beijing Medical Third Hospital involved the first cervical spine surgery

December 23, 2016 Source: Xinhuanet

Window._bd_share_config={ "common":{ "bdSnsKey":{ },"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":" 0","bdSize":"16"},"share":{ }};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')) .src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];

On November 15, 2016, Professor Liu Zhongjun, director of the Department of Orthopaedics, Peking University Third Hospital, implemented the world's first four-segment cervical resection including a pivotal vertebra for a patient with cervical malignant tumors, and installed the world's first one for the patient Ms. Yun. Large-span 3D printed artificial cervical vertebrae of the cervical spine. On December 8, the patient was discharged from the hospital and recovered in good condition.

Professor Liu Zhongjun, Director of Department of Orthopaedics, Peking University Third Hospital

It is understood that the human cervical vertebra is composed of 7 sections, and the two cervical vertebrae are not only in a special shape, but also bear 50% of the range of cervical vertebrae. The upper cervical spine has a heartbeat and a respiratory center in the cervical spinal cord. Once injured, the person will die immediately. The spine tumor of this patient is a chordoma, which is a malignant tumor. The four cervical vertebrae involved in the tumor invasion include an upper cervical vertebra. In this case, medically, surgical removal of the tumor is still the most important method. For surgery, at least one upper cervical vertebra and three lower cervical vertebrae should be cut continuously. This large-span reconstruction of the cervical spine is rare in the world, and there are few hospitals and doctors who can perform surgery. Without the use of 3D printing technology, the cervical spine structure is difficult to reconstruct after surgery

On November 22, one week after the end of the operation, the patient was able to get up with the help of the 3D printed cervical vertebra, which was almost impossible to do before the advent of 3D printing technology. "This is the world's first four-section cervical resection including the upper cervical spine. It is also the first time in the world to repair the cervical vertebra with such a large span of 3D printed plants. To do such a large span of cervical resection, if there is no 3D printing technology, we are now Can't find a suitable fixture." Liu Zhongjun said.

As a new technology, 3D printing has been in use for 35 years since the concept was introduced, but it has been used in the medical field for only a few years. The Liu Zhongjun team applied it to cervical spine surgery and repair, which is the first in the world medical field. The key to this technology is to infinitely replicate the human tissue to be repaired and reconstruct the tissue. The recovery of the patient after surgery is better than that of the previous titanium mesh repair, and has a qualitative improvement in safety and repair effects.

"Customized 3D printed artificial pivots like this, we have completed 6 cases so far, and have not had any problems, and have achieved good results. There is no hospital in the world that can do this", Professor Liu Zhongjun "This plant including the upper cervical vertebrae is customized for each individual. Because each person's situation is different, it can only be customized according to each individual's specific situation." The biggest highlight of this customized 3D printed vertebral body is designed Sponge-like microporous structure, which means that the entire inner plant is composed of micropores. The goal is to allow the bones of the human body to grow directly into the micropores and fuse with the inner plants.

"3D printing can make difficult diseases that can't be counted, find treatments, and have been improved, so as to improve the treatment effect," Liu Zhongjun said.

In 2009, Peking University Third Hospital introduced 3D printing technology into the field of orthopedics. After interdisciplinary and interdisciplinary cooperation, after years of research and clinical observation, the world's first 3D printed artificial vertebral body was finally born in their hands. In July, he successfully implanted the world's first 3D printed pivotal vertebral body for a malignant tumor patient. The 3D printed artificial hip joint product developed by the team is the first 3D printed human implant approved by CFDA in China. It was approved in 2015. The world's first 3D printed human implant in 2016 - artificial vertebral body obtained CFDA Registration approval. This is not only the world's first registered 3D printed artificial vertebral body, but also marks China's leading position in the field of 3D printed implants. China's manufacturing will benefit more patients in the future.

At present, only three of the 3D printed human metal implants approved by the CFDA are developed by Liu Zhongjun.

2019-nCoV Nucleic Acid Test Kit

2019-Ncov Nucleic Acid Test Kit (Pcr-Fluorescence Probe Method),Specimen Release Agent,2019-Ncov/Iav/Ibv Nucleic Acid Test Kit ,2019-Ncov/Iav/Ibv Nucleic Acid

Guangdong Hecin Scientific, Inc. , https://www.hecinscientific.com