Today, the “3D Printing” technology has made amazing progress in the medical field. Using 3D printing technology advanced plate sacral prosthesis Arthroplasty, Peking University people‘s Hospital on July 8, has successfully treated a patient with malignant tumor of the sacrum, the reporter learned this is 3D printing in sacral tumor treatment in the field of application for the first time in the world. In July this year, Hunan province, the second people‘s Hospital of successful global rare “whole brain shrink plastic“ surgery, patients aged 3 and 17–hour surgery, patients with dilated the entire skull was replaced with a skull by 3D printing.
3D printing technology has many gods? In the medical field, and what diseases can make this play?
Firmly fixed by traditional after resection of sacrum
Peking University people‘s Hospital, bone Oncology chief physician Guo Wei introduced the surgical patients from Guangxi, suffered from sacral chordoma, the two local resection of sacrum tumor, pain due to tumor recurrence and defecation dysfunction, bone Oncology at Beijing University people‘s hospital after undergoing surgery. Currently in world range within, sacral resection reconstruction and no effect better of General treatment method, and full sacral resection Hou, local bone defect larger, usually with spine nail Rod completed fixed, and support, and lumbar for connection, but this method of insufficient is easy caused fixed not prison, nail Rod easy loose, and full sacral resection currently still compared rare, “world a years within also no how many cases. “Because of the low incidence of malignant tumors of the sacrum itself.
Integrate 3D artificial prosthesis and bone cells good
The surgery in the selection of artificial fake body using has titanium material, Guo Wei introduced, 3D artificial fake body using titanium material, according to the patients sacral resection operation Hou bone defect custom manufacturing out spatial structure Anatomy form of artificial full sacral fake body, build for metal gap-like, human bone cell can long into gap metal within, fake body and spine, and pelvic connection, more meet biological mechanical structure of function reconstruction. This was the main advantages of 3D printing, which is unmatched by other techniques or materials.
Peking University people‘s Hospital bone oncologists weiran added that before the technology will not be able to obtain better results, can only try to mimic human structures, 3D printing technology in bio–mechanical structure, the local form of, largely completed this pattern.
The prosthesis must be identical to the excision of part
Reporters learned that 3D printing technology application of the prosthesis is also put forward higher requirements for surgical procedures, “preoperative customization are key parts of the surgery, according to previous CT scan results, printed in 1:1 exactly the same partial. Put forward higher requirements in the surgical technique, multiple times in the preoperative assessment on the basis of on the one hand, partial agreement, on the other hand, remove or avoid injury and blood vessels, nerves and other organs. “Guo Wei told reporters.
Customized according to patients with bone defect after resection of sacrum Anatomy of spatial structure of sacral prosthesis Arthroplasty, build for the metal space-like, human bone cells can grow into the space within the metal, fake body connected to the spine and pelvis.
3D printing in orthopedic wide
Reporters learned that at present part of the hospital‘s plastic surgery, orthopaedics, Stomatology, ophthalmology doctors 3D printer models have been carried out, help patients for repair of the skull defects, repair of jaw, elevated nose, reshape the cheekbones and the design of craniofacial surgery operation. –D print technologies in the field of Orthopedic applications have matured, 3D printing application has started in the orthopaedic field and wide prospects. A wide variety of orthopedic surgery, orthodontics, restoration, transplantation, continue, covering most parts of the human body.
3D printing in the field of medical practice has gradually spread and deepened, copy of parts of the human body is highly customized products, 3D printing, which can fit with body completely, become one with your body.
Orthopaedic surgeons which is mainly personalized permanent implants, generally use titanium alloy, cobalt-chromium-molybdenum alloys, ceramics and polymers and other materials, 3D printed products such as bone, cartilage, joints, teeth, through a surgically implanted in the human body.
3D printing is mainly used for special parts
3D printing technology to widely in the field of bone tumors, the scope remains limited, “mainly used in particular regions, such as the skull, pelvis, jaw, relatively complex shapes. General joint operation by long-term application of conventional technology means “, Guo Wei told reporters. Weiran believes that 3D printing technology is relatively mature, print of femoral head prosthesis are possible, but in clinical practice, whether a specific operation needs 3D printing, depending on the circumstances may be, “because in some areas, 3D printing may not be too many obvious advantages, only as a means of rebuilding.“