Chapter 634

The human body can be roughly divided into three cavities, thoracic cavity, abdominal cavity and 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 say that any disease was bleeding, minor disease, serious disease, and even one of their presidents was bled to death.

This also leads modern European and American men to like women with very, very large pelvic cavity, because only such women can survive.

Therefore, they think that pelvic women as wide as the door panel are the most beautiful. In fact, there is a reason for this. For example, when the gossip old lady in the neighborhood sees whose new daughter-in-law, her first sight is not the face, but Pigu eggs.

Because the pelvic cavity is wide, the risk is relatively small when pregnant and giving birth.

The hip joint is the most peripheral tissue of the pelvic cavity. Many people, especially some young people, walk a little longer, and there will be a clattering sound in the hip joint, just like someone snapping his fingers.

This is because although the length of legs has not reached the error of lameness, it has reached the limit of body adjustment.

If the long-term uneven stress is not handled, it will exceed the compensation of the body. Over time, it will lead to arthritis. The simplest way is to put a slightly thicker insole in the shorter side of the shoe.

The surgical scheme used by Zhang Fan is the posterolateral approach. The doctors in the electric classroom watched quietly. Although they didn't say anything, they still admired Zhang Fan's level in their heart.

At Zhang Fan's age, in their department, they are either hook interns or graduate students.

But Zhang Fan, he has started orthopedic surgery, which is considered to be the top surgery, and he chose the most complex surgical method, but the best way for patients to recover.

This makes everyone speechless. What can they say and what can they say? But after sawing the bone, when Zhang Fan directly wants to put on the prosthesis.

In the electric classroom, like water into hot oil, there is a lot of noise. They are all dry orthopedic doctors or top three doctors in large hospitals. Every heart is not clear about the steps of the operation.

The most difficult thing to change the hip is the placement of the prosthesis. If the placement is long or short, you don't have to think about it. The patient is lame.

In addition, if the measurement of the prosthesis is inaccurate, after the patient is discharged from the hospital, he may walk and click, and a big bag may come out of the Pigu, just like a big peach on the Pigu.

Then there is the thigh on the affected side, like a big windmill, with a big split!

The lighter one needs to go to the hospital and let the doctor pull his leg to return the prosthesis to the acetabulum. The heavier one may cause the patient to 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 electric classroom and looked at Zhang Fan's actions. In fact, he wondered, but considering Zhang Fan's technology and Zhang Fan's personality, he felt that Zhang Fan would not make such a major mistake.

But can he stand on the sidelines at this time? No, not for others, just for the patient, just because he is the director, he has to ask.

He did not stop or ignore the noise in his ears. He stood up and picked up the phone connecting the operating room.

"Dr. Zhang, is the measuring tool not easy to use, or I'm asking them to change a brand of measuring tool for you."

Lin Cong's tone sounded relaxed, but his face was solemn. If Zhang Fan really forgot the measurement, needless to say, he would immediately stop Zhang Fan from continuing the operation.

"Oh, director Lin! There's no need to change it. It's very useful. "

Zhang Fan said without raising his head.

"Er!" Lin Cong was choked by Zhang Fan. "Why don't you measure it?" There's no way. Lin Cong wants to ask around. As a result, Zhang fan can't get on the road.

People have their own habits and hobbies. The most unbearable thing for Zhang Fan on the operating table is to be disturbed.

At the beginning, this was for the sake of rice rut. Zhang Fan tried his best to cultivate the habit. Being disturbed on the operating table was like breaking Zhang Fan's food ticket. Zhang Fan was very, very angry.

"Gibosn's operation was improved by Moore, and Moore's operation was improved by Dr. Shibi. Don't you think you want to continue to improve it! Isn't measurement a waste of time? "

The tone was bland, and the foreign language was not standard, but the meaning was so strong that Lin Cong couldn't speak, and the doctors in the electric classroom were stunned.

Improvement, especially the improvement of surgery, is not easy. Most of the popular operations now are almost how they were done at the beginning, and now they are almost how they are done.

That is, occasionally one or two people with halos dare to improve. Except for improvement, most of the others just follow the rules. Even if they follow the rules, most of them can't learn well, it's not easy to improve.

"Improvement? He wants to improve? How did he improve? "

One by two looked at the doctor sitting next to him with question marks in his eyes.

Dr. Wang almost threw all the hooks in his hand when he heard Zhang Fan say such awesome words. This is too scary~

"Dr. Zhang, how is this improved?" He couldn't contain his doubts.

"With the acetabulum as the central point, establish three accurate radiating torque lines in the brain, and the lateral line is perpendicular to the long arm b-x-ray.

The lower measuring line sets a1-b1 high eccentric torque perpendicular to the body.

The medial line is perpendicular to the pubic bone and runs a2-b straight line.

Two points can fix a straight line, three points can fix a triangle, and the acetabulum, pelvis and lower limbs are not exactly a triangle! "

Zhang Fan said and did. This method was summed up by how many days and nights he practiced systematically.

This method combined with MRI and CT can locate the hip joint very accurately.

Generally speaking, it is to determine the starting point and end point of the bone, and the position will be fixed directly.

If this method is adopted, the hip replacement operation will become very simple. However, this method has high requirements for the doctor's sense of space, the calculation ability of torque and the prediction of lower limb pressure load.

To be honest, it is impossible for ordinary doctors to build an accurate structure diagram of patients in their mind.

And Zhang Fan, relying on countless times of training and strict requirements of the system, finally developed a set of his own surgical methods in failure again and again.

His method is more accurate than the conventional operation method. As long as human factors are involved, there are more or less errors, and Zhang Fan determines the direction directly at the source. It can be said that as long as the materials do not change, his operation will not change. It is so accurate.

Moreover, it can save more time, at least reduce the wound exposure for more than half an hour, and how many and a half hours does the whole operation take.

It is estimated that many people may have opened a mechanical alarm clock with a screwdriver when they were still young, that is, when they were little children and big demons. At that time, they might not feel the fineness of the alarm clock.

In fact, the fineness of the human body is definitely much higher than the mechanical complexity and fineness made by human beings.

Moreover, the most important thing is that human organs have the function of self recovery and self-regulation.

Others don't say, just talk about people's feet. In fact, they are surprised at their size.

In fact, the length of the upper and lower limbs is surprising. If the length of the lower limbs is more than two centimeters, it will exceed the compensation ability of the human body, and there will be limping. Walking is called limping.

There are three difficulties in hip replacement surgery. The most terrible one is uncontrollable fat embolism.

As the saying goes, eating meat is better than gnawing bones, and gnawing bones is better than licking fingers. This fragrance is because of a fat.

There is a lot of fat in the medullary cavity of bone, and the essence of bone marrow is actually phospholipid, that is, the so-called fat.

Once this is opened, a large amount of adipose tissue will liquefy and then enter the blood. To be honest, according to the current medical level, it is inevitable.

Fat embolism is the biggest uncertainty in orthopedic surgery. How terrible is this uncertainty? It can be said that once the fat embolism enters the more important organs, such as the lungs, to tell the truth, even if the patients are in the hospital, most of them have no time to rescue.

To avoid them, Department of orthopedics doctors are doing their best to speed up surgery and reduce injuries. But the operation of the Kwai is almost a destructive treatment, so it is very contradictory.

Zhang Fan's method saves time, which means that his method can more likely avoid fat embolism.

Zhang Fan said while doing. Whether it is Dr. Wang on the operating table or the doctors in the electric classroom, the brain quickly wants to return to Zhang Fan's way.

Hard, too hard. In particular, Dr. Wang, the beads of sweat on the tip of his nose under the mask slowly seeped out.

It's too difficult. The skull wants to hurt. It's too difficult to copy.

"Prepare the bone cement and set it in two minutes." Zhang Fan didn't stop. Said a word to Dongshan girl on the operating table.

Dongshan big girl looked at Zhang Fan admiringly. Although she didn't understand what Zhang Fan said, she heard every word Zhang Fan said clearly, but it was like a pile of random codes.

However, Dongshan Daniu thinks what Zhang Fan said is very tall. She has been on the operating table of countless experts, none of which makes her feel that the operation can be so simple and tall.

In particular, in the case of some doctors with poor techniques, a measurement, to tell the truth, is almost the target of an EYE-ON missile.

Close one eye, bend over and aim at one leg of the patient. To tell the truth, sometimes she feels unreliable, but although Zhang Fan doesn't measure it, it just makes her feel reliable.

Maybe this is a woman's sixth sense.

The hip prosthesis is like a pistol or the upper end of a sheep's leg bone.

When installing this device, first put the prepared bone cement into the expanded medullary cavity, and then insert and fix it, so that the prosthesis and bone can be permanently adhered together.

Bone cement is not the kind of cement used to build a house on weekdays. The bone cement used in the operating room solidifies very fast. It forms and solidifies in seven or eight minutes. If it is a little slower, the prosthesis can't be placed properly.

Therefore, when Dongshan big girl wanted to prepare bone cement, Dr. Wang was still stunned and looked obsessed.

"Hehe, how are you? Have you figured it out? It's simple. "

Zhang Fan asked with a smile like a devil.

"No!" Dr. Wang came back, and then asked in a very urgent tone.

When Zhang Fan said and did it, he saw that Zhang Fan didn't talk nonsense. He really improved the operation!

The doctors in the electric classroom have good eyesight. As Zhang Fan's operation continues, they also see that Zhang Fan has improved the operation method of hip joint.

Finally, Dr. Wang asked the question in everyone's heart and the question that everyone was very concerned about, "how did you do it?"

Doctor Wang longed to look at Zhang Fan, just as the little doll looked at other little girls talking about popsicles but he didn't.

Just say: can you give me a word?