The CT data was input into the 3D printer, and the nozzle began to slowly accumulate polylactic acid material. After 10 minutes, it was still only a thin layer of white solid... The bone surgeon Qin Xiaodong did not think that when he really got the skeleton model, his mystery Untied instantly. Before the surgery began, he brought the model into the operating room No. 1.
a corrective operation
Gu Meizhen, who is a 33-bed, puts on a surgical gown and feels a little nervous. But she has already had enough of her right foot. Because of the skeletal deformity, when walking, she can only land on the outside, limping, and grinding a thick layer of old mantle under the little finger. In the last year, the inside of her ankle began to be painful. In severe cases, she found painkillers and swallowed a few pills. Over time, this deformed right foot is like hiding a arrogant devil. The time it takes to take medicine is getting shorter and shorter, the devil is getting more and more crazy, and she has been grinding her from a hesitant rural woman. A patient who is determined to be determined, she decided: "Go to a large hospital in Nanjing for surgery."
Qin Xiaodong was also prepared. He was an orthopaedic surgeon at the People's Hospital of Jiangsu Province. He woke up very early this day. He went to the office in advance and took out a thing from the drawer. It was white and had five vertical extensions on the base. Slender branches, the surface is not smooth, can see the texture of the material, this is a model printed with a 3D printer, in full accordance with the CT data of Gu Meizhen, in theory, this copied the shape of the bone of her right foot.
Before leaving work the day before, Qin Xiaodong received the model, and when he opened the package to see the real thing, he was excited to shoot the thigh, and the model solved his major question - why does Gu Meizhen have pain in the inside of the ankle? When she first came to the expert clinic, her husband carried her all the way to the hospital. Both of them were full of bitterness. She pointed to the inside of her right foot and said, "The pain can't stand it." However, according to Qin Xiaodong's experience, walking with the outside of the right foot, the concentration of power, the place of pain should also be on the outside.
There are 26 bones and 33 joints on each side of the human foot. The structure is complicated. CT does not give him a direct answer. The bones of Gu Meizhen's right foot are displayed on the film. The most obvious feature is the talus deformity. This is an important part. The connecting bone, because of its special shape, has seriously affected the orientation of the entire right foot of Gu Meizhen. As for why the inner side hurts, Qin Xiaodong did not think clearly, which made his heart faint. As an orthopaedic surgeon, he does not like this feeling very much. "You must see clearly and clearly to judge the real situation. Otherwise, when you open the knife, you have no bottom."
Until the model is in front of the eyes, the mystery of Qin Xiaodong's heart is unraveled. The scaphoid bone on the inner side of the right foot is problematic. The shape and position are different from ordinary people. Because of stunting, this shape should be like a small boat. The bones were squeezed into a poor little cone. More importantly, this "small cone" and Gu Meizhen's guilt is too close, this is originally two bones that should not have direct contact, but Gu Meizhen gently rubs once every step. Qin Xiaodong called this situation a pseudo-articular joint. Unlike the real joint, there is no articular cartilage between the two bones, and there is no lubrication of the joint fluid. Every contact stimulates the nearby fine nerves, which makes her feel the heart. pain.
His uneasiness about his spatial imagination was released in an instant. One hour before the start of the operation, he compared the CT in the office, changing the angle to observe the model, and then bringing it into the operating room No. 1.
Gu Meizhen has been lying on the operating table. The nurse connected the sensor to the electronic instrument. The screen began to display four waveform data of different colors. The sound of the instrument filled the entire operating room. She has entered general anesthesia, her right leg is tied with a tourniquet, and a green surgical cover is placed over her body, revealing only the position below the right calf.
Qin Xiaodong (right) asked the nurse to show him the 3D printed model in order to accurately find the scaphoid bone of the patient with deformity of the foot.
Qin Xiaodong is in his 40s. He is slightly fat. He speaks gentle and patient to everyone. He has asked Gu Meizhen very seriously. If she is determined to have surgery, she will accept the new challenge after correction - re-learning to walk and change her. In the past 50 years of walking posture, trying to be like a normal person, both feet are on the ground with the soles of the feet. Gu Meizhen hardly hesitated, she could not coexist with the "devil", and even planned to amputate. Before seeing Qin Xiaodong, she went to another hospital in Nanjing. She felt that the doctor did not understand her pain enough and went to arrange the expert number of Qin Xiaodong. After the inspection, she was relieved a lot and said: "This doctor does not care for the patient's feet, and has checked back and forth several times."
The operation is about to begin, and the white foot model is placed on the electric knife table after disinfection, and there is no obvious CT film hanging on the viewing lamp. However, Qin Xiaodong felt that the model had a powerful effect. The structure and shape of the skeleton seemed to come out from the plane picture. He put on the lead coat and put on a green surgical gown outside, frowning. The brain was running fast, his eyes stayed on the CT film, and he quickly turned back to the model on the electric knife table.
Chen Hao is Qin Xiaodong's assistant. He wipes Gu Meizhen's right foot and calf back and forth with iodophor. The ankle is like a bow and arrow pulled up. The inside shape is like the letter "C", which is only " The devil's entangled feet were quickly dyed yellowish by iodophor. Gu Meizhen knew nothing about it. Before she was anesthetized, she knew that there was a white model on one side, exactly the same as her foot shape. As for what 3D printing is, her only concept is “very advancedâ€.
Because of the appearance of the model, the surgical plan was modified the day before, and Gu Meizhen’s painful right foot and calf also need to be opened, which is outside the previous surgical plan. Qin Xiaodong’s first goal was to find the posterior tibial tendon on his right foot. This tendon has been like a rope for many years. He is licking Gu Meizhen’s foot. He wants to cut it, pull it out, and then take it through the subcutaneous tunnel. Fixed on the middle wedge, so that the "rope" will no longer smash in the wrong direction.
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