If you look at the anatomical picture, you will find that the posterior superior iliac spine is larger than the bone plane of the anterior superior iliac spine. The bone plane is larger, and it is easier to implant if the needle tip falls down. Unlike the bone plane, the needle tip falls down like a needle tip facing a wheat ray, which is easy to rub and difficult to penetrate the needle vertically.

Vertical needle insertion is very important. The bones are pierced into the bones. The bones are hard, which means it is laborious. Vertical needle insertion is like a hammer hitting a nail and a vertical force is easy to enter. The force can be used to minimize the power and cause the child's bones to cause the minimum damage.

There are common bones that are difficult to wear in clinical practice. If the clinical teacher is like the bone-drilling teacher's expression is hard when he is pierced. This kind of force is not only hard to work, but also afraid of over-strength. Zhang Desheng is not afraid of death for the first time, so he dares to start drilling hard all of a sudden. If he cannot do a vertical needle and cannot pierce it, the psychological setbacks of novices will be far inferior to those of veterans and will collapse instantly.

Secondly, in clinical practice, the bone marrow dilution rate is quite high. What is bone marrow dilution, that is, bone marrow cannot be extracted or too little bone marrow is drawn, and most of the samples drawn are blood. Such specimens will definitely fail if they want to undergo bone marrow examinations when sent to the laboratory. If they want to do a bone marrow examination, they must be re-sucked, which is equivalent to failure of perforation.

If you choose the posterior iliac spine, the child needs to sleep on his stomach, which will inhibit his breathing. Perhaps because of this consideration, Zhang Desheng is not very brave enough to choose the posterior iliac spine. The main reason is that the child is too difficult to deal with, and the doctor dares not take risks at all.

Another way to prevent the child from lying on his side is to let the child lie on his side and hold his knees tightly to expose the posterior superior iliac spine. This position is not easy to fix. For this reason, Zhang Desheng respects Xie's opinions more.

It may be a bit difficult to put a good position, but it is better to be as difficult as the anterior superior iliac thorn is as if the student Xie said, and the needle will be swayed in the middle for a long time, and the consequences will be greater.

There is no need to be too scared if you have classmates to help.

Reported to Teacher Tian about the selection of posterior superior iliac spine, and Teacher Tian and Teacher Wang agreed.

Several students began to help the child adjust his position. The other two surgical students came up to help together when they saw this.

Carefully change the child to a lateral position to control the joint movement position when the child is in control, instead of pressing hard on the child.

Positioning is said to be the posterior superior iliac spine, but in fact the puncture point is the protrusion between the posterior superior iliac spine and the fifth lumbar vertebra.

After changing the position of the child, Zhang Desheng felt something different. When he touched the gloves, he could touch the flat bone surface, which means that this position exposed the bone position to be operated well. Unlike when he first touched the anterior superior iliac spine, he only felt the convex point and was difficult to get the needle.

In contact with the child's current position was posed by Classmate Xie. Student Zhang Desheng praised in his heart: Classmate Xie is amazing.

If you can find a wide range of needle points for the needle, the doctor's confidence will naturally be much more abundant.

Zhang Desheng then made a concerted effort, and the accuracy of the anesthesia to the periosteum was high, so he picked it up at will. He pressed the part where the local anesthesia was completed, and when he was putting the needle, he was confident and stabbed the needle straight down. When he pulled the push rod of the syringe, he quickly felt something coming up. The process was so smooth that it was incredibly smooth.

Doctors move quickly, and the pain and discomfort of the children will definitely be much relieved. Like adults, the most feared thing is the pain.
Chapter completed!