"Before I always worried that this lumps on the chest would be removed, the heart would be directly exposed. I have been afraid to perform surgery. Now I am relieved." Chang Jin’s Tan Jinhua successfully accepted 3D printed titanium sternal implant surgery at Hunan Cancer Hospital. Not only did he remove the lump, but he also replaced a 12 x 17 square centimeter sternum. This morning, Tan Jinhua successfully recovered and was discharged. According to the literature search, the replacement sternum area is so large that it is the first case in China.
The 43-year-old Tan Jinhua consciously had a bulge at the sternum five years ago. It was about the size of an egg, but there was no pain and discomfort. Later, the mass gradually increased. At the beginning of September this year, Tang came to the Hunan Provincial Cancer Hospital. The diameter of the tumor before surgery was about 20 cm, which is almost the size of a football.
According to Professor Xiao Gaoming, director of the Department of Thoracic Surgery, the scope of surgical resection is expected to be about 19 × 21 square centimeters, and most of the sternum and connected ribs need to be removed. In this way, the patient's heart and lungs will lose the 'protective' wall. After the traditional surgery to remove the sternum, the patient's heart is under the skin, a hug, squeeze the bus, the collision of small movements, it may be dangerous, even in the case of serious patients Killed. In the past, the treatment mode was that the sternal missing part was replaced with bone cement or other materials, and it was difficult to accurately repair the defect.
In order to allow patients to recover better, the experts finally decided to use 3D printed titanium alloy material to repair the defect and reshape the thorax. It is understood that the biggest difficulty in 3D printing titanium alloy sternum is "modeling." The hospital first provided the patient with a set of high-resolution thin-layer CT data from the diagnosing department, and then input the imaging data into the medical three-dimensional processing software to obtain the patient's pathological bone data, and commissioned the 3D company to analyze the data. Import model creation. After that, the surgical team led by Xiao Gaoming accurately designed the scope of surgical resection. On a 3D printed plastic thorax model with a ratio of 1:1, physicians and computer engineers worked together to design a ergonomic fit that perfectly fits the ribs and sternum. 3D sternum of the handle.
After the tumor was completely resected, the doctor used 3D printed sternum to accurately repair the sternal rib defect of the patient, and then used microsurgical technique to cut the abdominal perforator flap to repair the soft tissue defect of the chest. Xiao Gaoming said that the 3D printing material titanium alloy is more durable than other materials, close to the normal structure of the patient itself, and the quality of life of the patients after surgery is high. After the operation, Tan Jinhua recovered well.
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