The human body can be roughly divided into three chambers, the chest, abdomen and pelvis.

The pelvis, in particular, is very different from the natural evolutionary selection.

For example, Europeans and Americans, because in ancient times, their medical technology could not be said, all diseases were bloodletting, minor illnesses were released, major illnesses were released, and even one of their presidents was bloodletting.

This has also led to the fact that modern European and American men like women who have a very, very wide pelvis, because only this kind of woman can survive.

Therefore, they think that pelvic women who are as wide as the door panel are the most beautiful, in fact, there is a reason for this, just like the old lady in the neighborhood who loves to gossip when she sees someone's new daughter-in-law, the first thing she sees is not the face, but the pigu eggs.

Because of this wide pelvis, the risk of pregnancy and childbirth is relatively small.

The hip joint is the outermost tissue of the pelvis. Many people, especially some young people, walk for a little longer and experience a gurgling sound in the hip joint, like someone snapping their fingers.

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

If you don't deal with long-term uneven force, and so on beyond the body's compensation, then over time, it will lead to arthritis, the easiest way is to put a slightly thicker insole in the shoe on the slightly shorter side.

The surgical protocol used by Zhang Fan was a 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 hearts.

At Zhang Fan's age, in their department, he is either an intern doctor or a graduate student.

But Zhang Fan, he has already started to do orthopedic surgery, which is considered a top-level operation, and he chose the most complicated surgical method, but the best way for patients to recover.

This made everyone speechless, what can they say, what else can they say? But when the bones were sawed open, Zhang Fan directly wanted to get a prosthesis.

In the electric classroom, there is a noise like water entering hot oil, and there is no confusion about the steps of the operation.

The most difficult thing about hip replacement is the placement of the prosthesis, the placement is long and short, and there is no need to think about it, the patient is lame when he goes to the ground.

In addition, if the measurement of the prosthesis is not accurate, after the patient is discharged from the hospital, he may be able to walk and gurgle, and a big bag may come out of the pigu, just like a big peach growing on the pigu.

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

Lighter ones need to go to the hospital and have the doctor pull the leg to put the prosthesis back into the acetabulum, while heavier ones may cause permanent disability to the patient.

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 while watching Zhang Fan's movements, he actually wondered in his heart, but thinking about Zhang Fan's skills and Zhang Fan's personality, he felt that Zhang Fan would not make such a major mistake.

But at this time, can he be a bystander? No, not for anything else, just for the patient, just because he is the director, he has to ask.

He didn't stop or pay attention to the noise in his ears, stood up and picked up the phone that connected the operating room.

"Dr. Zhang, isn't the measuring tool handy, or I'm asking them to change you to a new brand of measuring tool. ”

Lin Cong's tone sounded very relaxed, but there was a solemnity 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, you don't need to change it, it's very easy to use. ”

Zhang Fan said without raising his head.

"Uh!" Lin Cong was choked by Zhang Fan, "Why don't you measure it?" No way, Lin Cong still wanted to ask in a roundabout way, but Zhang Fan didn't say it.

Everyone has 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 food, Zhang Fan worked hard to cultivate the habit, and being disturbed on the operating table was like breaking Zhang Fan's food stamps, Zhang Fan was very, very annoyed.

"Gibosn's surgery was improved by Moore, and Moore's surgery was improved by Dr. Shibi, didn't you think about continuing to improve!

The tone is flat, the foreign language is not standard, but the meaning is too strong, so strong that Lin Cong can't speak, and so strong that the doctors in the electric classroom are stunned.

Improvements, especially surgical improvements, are easier said than done. Most of the surgeries that are now popular are almost how they were done at the beginning, and they are still almost how they are done now.

That is to say, except for one or two people who occasionally appear with a halo on their heads who dare to improve and improve, most of the rest just follow the rules, even if most of them do not learn the rules well, it is not easy to improve.

"Improve? He wants to improve? How does he improve?"

One by two, they looked at the doctor next to them, and their eyes were full of question marks.

After Dr. Wang heard Zhang Fan say such awesome words, he almost threw away the hook in his hand, which was too scary!~

"Doctor Zhang, how is this improved?" he couldn't suppress the question in his heart.

"With the acetabulum as the central point, build up a precise line of three radiating moments in your mind, with the lateral line perpendicular to the long-arm B-X-ray.

The lower line is set with a high eccentric torque of A1-B1 perpendicular to the body.

The medial line is perpendicular to the pubic bone and runs in straight lines from A2 to B.

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 at the same time. This method was summed up by how many days and nights he practiced systematically.

This method, combined with MRI and CT, can pinpoint the position of the hip joint very precisely.

To put it in layman's terms, it is to determine the beginning and end of the bone, and the position is directly fixed.

If this method is possible, the hip replacement surgery will become very simple, but this method has high requirements for the doctor's sense of space, the ability to calculate torque, and the estimation of the pressure load of the lower limbs.

To be honest, constructing an accurate diagram of the patient's structure in your mind is not something that ordinary doctors can make.

And Zhang Fan relied on countless trainings, relying on the strict requirements of the system, and failing again and again, and finally exercised a set of his own surgical methods.

His method is more accurate than conventional surgical methods, as long as it involves human factors, there are more or less errors, and Zhang Fan directly determined the direction at the source, it can be said that as long as the material does not change, the operation he does has no change, it is so accurate.

Moreover, it is more time-saving, at least it can reduce the wound exposure by more than half an hour, and the entire operation only takes more than half an hour.

It is estimated that many people may have opened a mechanical alarm clock with a change cone when they were young boys, that is, little boys, and big devils, and they may not have felt the fineness of the alarm clock at that time.

In fact, the degree of sophistication of the human body, in comparison, is definitely much higher than the complexity and sophistication of the machinery made by humans themselves.

And, most importantly, the organs of the human body have the function of self-recovery and self-regulation.

If you don't talk about anything else, let's talk about the size of people's feet, in fact, there is a certain amount of surprise.

And the upper and lower limbs are actually surprisingly long. If the length of the lower limbs exceeds two centimeters, it exceeds the compensatory ability of the human body, and there will be a limp, and walking is called a limp.

There are three difficulties in hip replacement surgery, and the most terrible one is the occurrence of uncontrollable fat embolism.

As the saying goes, eating meat is better than gnawing bones, and gnawing bones is better than licking your fingers.

In the medullary cavity of bones, there is a large amount of fat, and the essence of bone marrow is actually phospholipids, which are called fats.

Once this is opened, a large amount of fatty tissue will liquefy and then enter the bloodstream, which is honestly unavoidable with the current level of medical care.

Fat embolism is one of the biggest uncertainties in orthopedic surgery. How terrible is this uncertainty, so to speak, once the fat embolism enters the more important organs, such as the lungs, to be honest, even if the patient is in the hospital, most of them will not have time to be rescued.

In order to avoid it as much as possible, orthopedic surgeons try to speed up surgery and reduce damage as much as possible, but orthopedic surgery, which is almost a destructive treatment, is very contradictory.

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

Zhang Fan said and did at the same time. Whether it was Dr. Wang on the operating table or the doctors in the electric classroom, the brain quickly wanted to repeat Zhang Fan's way.

It's hard, it's too hard. Especially Dr. Wang, the beads of sweat on the tip of his nose under the mask slowly seeped out.

It's so hard, my braincase hurts, it's too hard to replicate.

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

And Dongshan Da Niu looked at Zhang Fan with a look of adoration, although she couldn't understand what Zhang Fan meant, she heard every word Zhang Fan said clearly, but it was like a bunch of garbled codes.

However, Dongshan Da Niu just thinks that what Zhang Fan said is very lofty. She has been on the operating table of countless specialists, and none of them made her feel that the surgery could be done so easily, and it could make people feel high.

Especially when encountering some doctors with poor skills, a measurement, to be honest, is about to become a target for eye-sight missiles.

With one eye closed, bent over and aimed at one of the patient's legs, to be honest, sometimes, she felt unreliable, but although Zhang Fan didn't measure it, it just made her feel reliable.

Maybe this is a woman's sixth sense.

The hip prosthesis is like a pistol or the upper end of the leg of mutton that everyone usually gnaws on the bone.

When this device is installed, the prepared bone cement is first placed in the expanded medullary cavity, and then inserted and fixed, so that the prosthesis and the bone are 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 is very fast, it will be formed and solidified in seven or eight minutes, and if it is a little slow, the prosthesis will not be able to be put well.

Therefore, when Dongshan Da Niu was about to prepare bone cement, Dr. Wang was still stunned, with an obsessive expression.

"Hehe, how's it going, have you figured it out? ”

Zhang Fan asked with a smile like a demon.

"No!" Dr. Wang asked, in a very urgent tone.

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

And the doctors in the electric classroom are not bad, as Zhang Fan's surgery continues, they can also see that Zhang Fan has improved the way of hip surgery.

Finally, Dr. Wang asked the question that everyone had in their minds, and the question that everyone was very concerned about, "How did you do it?" ”

Dr. Wang looked at Zhang Fan longingly, just like a little doll looking at other little girls snorting on popsicles and he didn't, looking at Zhang Fan longingly.

Just say: Can you give me a shuffle?