Because the cervical tumor is almost 瘫痪 3D printed vertebral body to help him resume walking
Release date: 2017-04-07
Lei Qing (right) shows the students with the model just printed
3D printed skeleton model
　　
Cutting-edge 3D printing technology has recently been increasingly applied to the medical field. A year ago, Changsha 3D Printing Technology Medical Application Institute used the first 3D printed artificial vertebral body and lamina complex in China to reconstruct the stability of the spine in a patient with cervical cancer.
After a year, how was Mr. Zhu recovering? The reporter recently came to Changsha City 3D Printing Technology Medical Application Research Institute to interview, see the deputy director of the Institute, Changsha City Third Hospital orthopedics director Lei Qing Chief Physician is returning to Mr. Zhu through WeChat video. "Lee Director, you see, I am walking freely, and I can take care of myself in my daily life. Thank you very much for your re-creation. The 3D printing technology is amazing." In the video, the 50-year-old Mr. Zhu smiled and was Show Lei Qing that he recovered his good condition after surgery.
How amazing?
　　
    3D printing technology makes the almost stunned man resume walking
　　
Lei Qing told reporters that in March last year, this Mr. Zhu was transferred from Changde Taoyuan local hospital to Changsha No. 3 Hospital for treatment because of his inability to walk, incontinence and other symptoms. He was diagnosed as a seventh cervical lesion and was single-shot. Plasmacytoma, vertebral body and attachments are destroyed, the vertebral body collapses with anterior dislocation, and there are obvious manifestations of neurological damage, such as the inability to walk the lower limbs, incontinence, etc., which are the consequences, and need immediate surgical treatment.
However, the traditional way of reconstructing the spine structure has many shortcomings, which may lead to the failure of surgery and the damage of nerve function again. After many discussions with experts and ethics committees of the Third Hospital of Changsha City, it was decided to complete the operation for Mr. Zhu's “private customized†3D printing technology: after the diseased vertebral body was removed, the 3D printed artificial vertebral body was used to reconstruct the stability of the anterior spine. 3D printed artificial lamina is used to reconstruct the posterior structure to cover the dura mater, reducing the possibility of postoperative nerve damage.
The good news soon came: Mr. Zhu can wear his brace to get out of bed 1 week after surgery. After half a year of review, the nerve function of the lower extremities is basically restored, the function of the urine and urine is normal, and other heavy physical labor can be performed at home. Various daily activities; review X-ray and CT tips, the tumor has no recurrence, and the implanted artificial vertebral body and lamina are well integrated with the surrounding bone and have good stability.
"The success of this operation also marks the success of the first 3D printed artificial vertebral body and lamina complex to reconstruct the stability of the spine in China." Lei Qing said.
　　
How mysterious?
　　
    3D printed implants have a higher similarity to the original bone
　　
During the interview, several multi-layer display racks placed in the orthopaedic doctor's studio of the Third Hospital of Changsha City attracted: there were various models printed in 3D according to the patient's human anatomy, with spine. , various joints, etc.
How are they printed? Cai Lihong, deputy director of Changsha 3D Printing Technology Medical Application Research Institute, told reporters that data was first collected by CT and nuclear magnetic scanning. After complicated processing, the data was converted into industrially identifiable data, which was then broken down into several data slices. These data slices are machine-recognizable codes, and then the metallurgical molding system uses a laser beam, an electron beam, etc. to deposit and bond metal powder, nylon powder, liquid resin, etc. layer by layer, and finally superimpose molding to manufacture a solid product.
At present, the Institute's 3D printing technology is mainly divided into three levels: models, guides, implants. "The most complicated implants, considering the material and post-processing methods, the shape, size, internal pore structure, mechanical load-bearing parts, support structure, function, etc. of the implant must be highly similar to the original body bone. Biocompatibility, the finished product printed by 3D can maintain high similarity with the original bone in all aspects of biomechanics," said Cai Lihong.
dialogue
　　 3D printing will change our lives
　　 Shopping does not have to go to the mall, you can print at home
Reporter: How will 3D printing technology affect the future?
Lei Qing: In the field of orthopedics I am familiar with, 3D printing technology can help doctors diagnose patients' diseases, communicate with doctors and patients, preoperative planning, simulate operation, optimize surgical procedures, predict and evaluate surgical effects, etc. Some clinically difficult diseases. In the medical field, this technology will be more widely applied to the clinic in the future. At present, this technology is applied in the fields of jewelry, food, industrial design, clothing, construction, automobile, aerospace and medical industry. In the future, it will go more into daily life, such as when we need to buy something. Need to go to the mall, print at home.
Current laboratory card
Changsha 3D Printing Technology Medical Application Research Institute was established in 2014. The institute is applying the new technology of 3D printing to orthopedics, oral clinical, etc., and efficiently transforms scientific research results. At present, there are more than 1,000 cases of clinical application, and a number of technologies have filled the gap in the province.
Source: Changsha Evening News
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