It is a special bandage soaked in ripe lime. At this time, the gypsum bandage is soft. Only in this way can it be tied or applied to the relevant parts of the patient for shaping, and then wait for the ripe lime to harden and play a fixed role...

For example, how many laymen know that the use of gypsum bandages can be used for burns, in addition to the most commonly used fracture treatment and correction treatment.

Where is the gypsum used in spinal surgery? Does gypsum bandage fix the spine?

Some, gypsum bandages can be tied to the waist for a waist support, but be careful not to curb the patient's chest breathing, and it is a taboo for pregnant women. As for now in the operating room, gypsum bandages are not used for the time being, the scene of gypsum application has changed, and it has become the operating bed where the patient lies during the operation, called the gypsum bed.

The gypsum bed is hard and the whole piece is lying on it. It is equivalent to the human bones on one plane, which is conducive to the orthopedic doctors to observe and judge the position and angle of the bones. For example, the posterior spinal surgery we are going to do today, the patient is in a prone position on the gypsum bed, and the spine is ridged by the gypsum bed, which can better expose the surgical field.

The nurse in the operating room helped the doctor adjust the patient's position and fix the patient's position. The anesthesia was also done.

Dr. Liu brought student Xie in and prepared preoperative disinfection and lay out the paper just like other surgical procedures.

Assisting Dr. Liu in preparation for preoperative preparations, Xie Wanying found that Geng did not show up. It was possible that Geng Yongzhe couldn't stand his younger brother lying on the operating table, or that Geng's mother was crying outside and needed his eldest son to comfort him, so she had not arrived for a long time.

Orthopedic surgery is said to be more special than other surgical scenes. It involves bones. The picture that reminds people of the first time is like a butcher who chops bones with a knife in a slaughterhouse.

What is wrong here is that orthopedics do need to deal with human bones during surgery, and they need to use a knife to attack the bones. Knives that can cut bones must be like knives in the kitchen. If it is just a normal knife, special knives are needed. This kind of knives are called ultrasonic bone knives in orthopedics.

What does an ultrasonic bone knife look like? Is it as big as a bone-cutting knife? No, an ultrasonic bone knife is similar to an ordinary electric knife. The pen shape is the shape of a pen, but the knife surface of the knife head is larger than that of an electric knife. Don’t underestimate that the appearance of this scalpel is not much different from that of a small knife. The principle of an ultrasonic bone knife uses high-frequency ultrasonic oscillation, and the force that destroys bones is definitely comparable to that of a bone-cutting knife.

Not only that, an ultrasonic bone knife can adjust the working frequency. Under a certain frequency limit, it can simply destroy the bone with high acoustic impedance and calcified and mineralized hard tissues. At the same time, it can automatically screen out soft tissues with low acoustic impedance to avoid damaging soft tissues and attacking bone lesions. In spinal surgery, bones and nerves are closely related anatomically and they always need to pay special attention to the operation. The ultrasonic bone knife cannot cut soft tissue orthopedic doctors can avoid accidentally damaging the nerves to prevent sequelae after surgery. Therefore, an ultrasonic bone knife is a good baby.

The nurse's instrument table has a row of ultrasonic bone knife heads, and the doctor can choose to switch the knife heads. In addition to ultrasonic bone knife, other conventional scalpels and electric knife are essential. The assistant lays the surgical list.

After surgery, he entered the operating room.
Chapter completed!