Source: Guangdong Hospital of Traditional Chinese Medicine
Recently, diao Dechang, director of the Colorectal Surgery Department of Guangdong Hospital of Traditional Chinese Medicine, successfully completed China’s first 3D printed model navigation resection of retroperitoneal giant liposarcoma with a tumor volume of 40cm×30cm×15cm and a weight of 16 jin through 3D human printing technology.
Diao Decchang said that the patient’s tumor occupied the entire left abdominal cavity, closely connected with multiple organs and blood vessels, and invaded the psoas major muscle, and the surgical area was complex.The difficulty of this operation is that the tumor goes deep behind the piriformis muscle and surrounds the left iliac blood vessel, which is very risky.The huge tumor behind the peritoneum is called the abdominal “time bomb”. Its huge size, complex structure and invasion of multiple abdominal organs and large blood vessels not only bring unbearable pain to the patients, but also bring great difficulty to the operation, which requires extremely strict requirements on the level of hospitals, departments and surgeons.After communication and authorization from both doctors and patients, a surgical plan for the first 3D printed model navigation resection of retroperitoneal giant liposarcoma was made in China.
Diao Dechang believed that by using 3D human body printing technology to reconstruct the model before surgery, it could be clearly seen that the upper part of the tumor reached the diaphragm, was close to the splenic artery and vein, and the lower part burst into the pelvic cavity, and there was a certain separation gap between the tumor and the iliac blood vessel, and the relationship between the tumor and the surrounding organs was clear.
After adequate preoperative preparation and operation plan, the operation began at 10 am on July 15, with director Diao Dechang leading the operation and the assistance of Dr. Li Hongming, Dr. Feng Xiaochuang and Dr. Deng Xiongxing.During the operation, the abdominal cavity was opened with a “T” shaped incision, and the adhesion between the tumor surface and the colon was first released according to the principle of circumferential center wrapping and progressive layers. The right ureter was separated and protected by deep layers.Next, the adhesion zone was released from the left side of the tumor, the left ureter and lumbar nerve were separated, and then the tumor nutrient vessels were ligated from the superficial to the deep side of the tumor, and the invaded psoas major muscle was removed.Finally, blunt dissection of the iliac artery surrounded by the tumor was performed in the pelvic cavity and the tumor was removed completely.
Due to the use of 3D human body printing technology before surgery, the surgical team did enough homework in advance on the spatial relationship between the tumor and surrounding tissues. Each step of the operation and the risks to be avoided were clearly understood in the chest, and the whole operation was smoothly completed in a tense and focused environment.This highly difficult “abdominal bomb” recognized in the industry and the first 3D printed model navigation resection of retroperitoneal giant liposarcoma was successfully completed in less than 2 hours in the hands of “bomb removal expert” Diao Decchang’s team, with intraoperative bleeding of less than 100 ml.
The patient had no obvious discomfort on the first day after the operation, and the incision pain was not severe.On the second day, the patient could get out of bed and move. In the afternoon, gastrointestinal function began to recover and porridge and water were eaten.On July 18, the patient was discharged from hospital with normal postoperative review results.
According to Professor Diao Decang introduces, tumour of peritoneal space comes on occult, early stage does not have any symptom almost, or with abdominal pack mass give priority to, because abdominal cavity space is relatively bigger, reason is diagnosed relatively difficult.The tumor volume of most patients is very large, and invasion of peripheral blood vessels and organs, the operation is difficult, high risk.3D human body printing technology has unique advantages in the diagnosis and treatment of large retroperitoneal tumors. It can reconstruct and print tumors, peripheral blood vessels and organs, realize preoperative prediction and intraoperative navigation, make surgery more accurate and safe, and enable patients to obtain more benefits in treatment.
Diao Decchang, director of the Colorectal surgery department of Guangdong Hospital of Traditional Chinese Medicine, has rich experience in the treatment of retroperitoneal massive tumors and has been widely recognized in the industry.In order to further improve the diagnosis and treatment level of the department, improve the quality of surgery, reduce the risk of treatment, and ensure the life safety of patients, Diao Decheng team took the lead in introducing 3D human body printing technology.This technology can print an accurate model of the integration of large blood vessels and important organs around the huge tumor in the abdominal cavity through equal proportion recurrence, which can effectively help doctors fully evaluate the tumor, enable surgeons to gain the ability of “predicting the future”, and develop individual surgical methods for patients.