The human body can be roughly divided into three cavities, the chest cavity, the abdominal cavity and the pelvic cavity.
Especially the pelvic cavity, with the selection of natural evolution, is very different.
For example, Europeans and Americans, because in ancient times, their medical technology could not be said, all diseases were treated with bloodletting, minor illnesses were treated, major diseases were treated, and even one of their presidents was exsanguinated to death.
This has also led to the fact that modern European and American men prefer women with very, very wide pelvic cavities, because only such women can survive.
Therefore, they think that women with pelvic cavities as wide as door panels are the most beautiful. In fact, there is a reason for this. Just like the old lady in the neighborhood who likes to gossip, the first thing she sees when she sees someone’s new daughter-in-law is not the face. , but pigeon eggs.
Because the pelvic cavity is wide, the risk during pregnancy and childbirth is relatively small.
The hip joint is the most peripheral tissue of the pelvic cavity. Many people, especially young people, will make a clicking sound in their hip joints after walking for a long time, like someone snapping their fingers.
This is because although the length of the legs has not reached the lame error, it has reached the limit of the body's adjustment.
If the long-term uneven force is not dealt with and the body's compensation is exceeded, it will lead to arthritis over time. The simplest way is to put a slightly thicker shoe on the slightly shorter side. A little insole.
The surgical plan used by Zhang Fan was the posterolateral approach. The doctors in the electronics classroom watched quietly. Although they didn't say anything, they still admired Zhang Fan's skills in their hearts.
At Zhang Fan's age, in their department, he was either an intern doctor or a graduate student.
But as for Zhang Fan, he has already started to perform orthopedic surgery, which is considered to be top-notch surgery, and he chooses the most complicated surgery method but the best recovery method for the patient.
This left everyone speechless. What can be said? What else can be said? But after sawing through the bones, Zhang Fan was about to put on the prosthesis.
In the audio-visual classroom, the sound was like water pouring into hot oil. They were all doctors from orthopedic departments or tertiary doctors from large hospitals. Everyone was unclear about the steps of the operation.
The most difficult part of hip replacement is the placement of the prosthesis. If the placement is too long or too short, the patient will be a cripple without even thinking about it.
Also, if the measurement of the prosthesis is not accurate, after the patient is discharged from the hospital, a big bump may appear on the pig when he walks, just like a big peach growing on the pig.
Then the thigh on the affected side is doing a big split like a windmill!
If it is a mild case, you need to go to the hospital and have the doctor pull the leg to return the prosthesis to the acetabulum. If it is a serious case, the patient may be permanently disabled.
Therefore, when Zhang Fan directly skipped the measurement, the doctors' eyes widened.
"Nonsense! Director, he..."
Lin Cong listened to the noise in the audio-visual classroom and watched Zhang Fan's movements. He was actually puzzled, but thinking about Zhang Fan's skills and Zhang Fan's personality, he felt that Zhang Fan would not appear in such an important event. mistakes.
But, at this time, can he just sit back and watch? No, for no other reason than for the patient and because he is the director, he has to ask.
He did not stop or pay attention to the noise in his ears. He stood up and picked up the phone to connect the operating room.
"Dr. Zhang, are you using a measuring tool that's not convenient for you? Or I'll ask them to replace you with a different brand of measuring tool."
Lin Cong's tone sounded very relaxed, but there was a solemn expression on his face. If Zhang Fan really forgot this measurement, then needless to say, he would immediately stop Zhang Fan from continuing the operation.
"Oh, Director Lin! No need to change, it's very easy to use."
Zhang Fan said this without raising his head.
"Uh!" Lin Cong was choked by Zhang Fan, "Why don't you measure it?" There was no way, Lin Cong wanted to ask in a roundabout way, but Zhang Fan didn't answer.
Everyone has his own habits and hobbies. The most intolerable thing for Zhang Fan on the operating table was to be disturbed.
At first, this was a habit that Zhang Fan had cultivated for the sake of food. Being disturbed on the operating table was like cutting off Zhang Fan's food stamps. Zhang Fan was very, very angry.
"Gibosn's surgery was improved by Moore, and Moore's surgery was improved by Dr. Shibi. Haven't you ever thought about continuing to improve it? Isn't measuring a waste of time?"
The tone was flat, and the foreign language was not standard, but the meaning was so powerful that Lin Cong was speechless, and the doctors in the electronic classroom were stunned.
Improvement, especially improvement of surgery, is easier said than done. Most of the surgeries that are now popular are still done almost as they were done in the past.
That is to say, except for the occasional one or two people with a halo who dare to make improvements, most of the others just follow the rules. Even if they follow the rules, most of them cannot learn well, and improvement is not easy.
"Improvement? Does he want to improve? How can he improve?"
One by one, they looked at the doctors sitting next to them, with questions in their eyes.
After Dr. Wang heard Zhang Fan say such awesome words, he almost threw away the retractor in his hand. These words were so scary! ~
"Dr. Zhang, how has this been improved?" He really couldn't suppress the questions in his heart.
“Using the acetabulum as the center point, create three precise radiating moment lines in your mind, with the lateral line perpendicular to the long arm BX line.
The lower measuring line sets the A1-B1 high eccentric moment perpendicular to the body.
The medial line is perpendicular to the pubic bone and follows the straight line A2-B.
Two points can fix a straight line, three points can fix a triangle, and the acetabulum, pelvis, and lower limbs are exactly a triangle! "
Zhang Fan said and acted at the same time. This method was summed up after he practiced the system for many days and nights.
This method combines the patient's MRI and CT to locate the hip joint position very accurately.
To put it simply, the starting point and end point of the bone are determined, and the position is directly fixed.
If this method is used, hip replacement surgery will become very simple. However, this method requires the doctor's sense of space, torque calculation ability, and pressure load estimation of the lower limbs to be extremely high.
To be honest, just constructing an accurate structural diagram of the patient in his mind is not something that ordinary doctors can do.
Zhang Fan relied on countless trainings, strict requirements of the system, and failed again and again, and finally developed his own surgical method.
His method is more accurate than conventional surgical methods. As long as human factors are involved, there will be errors to some extent. However, Zhang Fan determines the position directly at the source. It can be said that as long as the material does not change, he can do it. There is no change in the operation, it is so precise.
Moreover, it also saves more time. It can reduce the wound exposure by at least half an hour, and the entire operation only takes half an hour.
It is estimated that many people may have opened a mechanical alarm clock with a screwdriver when they were young teenagers, that is, little devils. At that time, they may not have been impressed by the sophistication of the alarm clock.
In fact, the sophistication of the human body is definitely much higher in complexity and sophistication than the machinery made by humans themselves.
Moreover, the most important thing is that the human body's organs have the function of self-recovery and self-regulation.
Let’s not talk about other things, let’s just talk about human feet. The size of human feet is actually somewhat surprising.
In fact, the upper and lower limbs also have different lengths. If the length of the lower limbs differs by more than two centimeters, it exceeds the body's compensatory capacity and will cause lameness, which is called a limp when walking.
There are three difficulties in hip replacement surgery. The most terrifying one is the occurrence of uncontrollable fat embolism.
As the saying goes, eating meat is worse than gnawing bones, and gnawing bones is worse than licking your fingers. The fragrance comes from the grease.
There is a large amount of fat in the medullary cavity of bones, and the essence of bone marrow is actually phospholipid, which is the so-called fat.
Once this is opened, a large amount of fat tissue will liquefy and then enter the bloodstream. To be honest, this situation is unavoidable according to the current medical level.
Fat embolism is one of the biggest uncertainties in orthopedic surgery. How terrible is this uncertainty? It can be said that once fat embolism enters a more important organ, such as the lungs, to be honest, even if the patient is in the hospital, most of them will not have time to rescue.
In order to avoid it as much as possible, orthopedic surgeons try their best to speed up the operation and reduce the damage. However, orthopedic surgery is almost a destructive treatment, so it is very contradictory.
Zhang Fan's method saves time, which means that his method is more likely to avoid fat embolism in patients.
Zhang Fan said and acted at the same time. Whether it was Dr. Wang on the operating table or the doctors in the audio-visual classroom, their brains were racing to repeat Zhang Fan's method.
Difficult, too difficult. Especially Dr. Wang, big beads of sweat slowly seeped out from the tip of his nose under the mask.
It's so difficult that my head hurts. It's so difficult to copy.
"Prepare the bone cement and set it in two minutes." Zhang Fan did not stop. He said something to the big girl from Dongshan who was beside the operating table.
The Dongshan girl looked at Zhang Fan with admiration. Although she didn't understand what Zhang Fan meant, she could hear every word Zhang Fan said clearly, but when they were put together, they were like a bunch of garbled characters. .
However, the Dongshan girl just felt that what Zhang Fan said was very lofty. She has been on the operating table of countless experts, but none of them made her feel that the operation could be so simple and make people feel superior.
Especially when encountering some doctors with poor skills, a measurement, to be honest, almost makes them a target for eye-sighting missiles.
With one eye closed, she bent over and looked at the patient's leg. To be honest, sometimes she felt it was unreliable, but even though Zhang Fan didn't measure it, it still made her feel reliable.
Maybe this is a woman’s sixth sense.
The prosthesis of the hip joint is like a pistol or the upper end of the lamb leg bone that everyone chews on.
When installing this device, you must first put the prepared bone cement into the expanded medullary cavity, and then insert and fix it, so that the prosthesis and the bone are permanently adhered together.
Bone cement is not the kind of cement used to build houses on weekdays. The bone cement used in the operating room solidifies very quickly. It takes seven or eight minutes to take shape and solidify. If it is slightly slower, the prosthesis will not fit properly.
Therefore, when Dongshan Girl was about to prepare bone cement, Dr. Wang was still stunned with an obsessed expression on her face.
"Haha, how about it, have you figured it out? It's very simple."
Zhang Fan asked with a smile like a devil.
"No!" Dr. Wang came back to his senses and asked in a very urgent tone.
When Zhang Fan was talking and doing it, he could see that Zhang Fan was not talking nonsense, he really improved the surgery!
The doctors in the electronic classroom were also very discerning. As Zhang Fan's surgery continued, they also saw that Zhang Fan had improved his hip surgery method.
Finally, Dr. Wang asked the question on everyone's mind and the question that everyone was very concerned about, "How did you do it?"
Doctor Wang looked at Zhang Fan longingly, just like a little baby looking at other little girls holding popsicles but not him, looking at Zhang Fan longingly.
All I have to say is: Can you please tell me a little bit?
