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    It is a special bandage soaked in slaked lime.  At this time, the plaster bandage is soft. Only in this way can it be tied or applied to the patient's relevant parts for shaping, and then the slaked lime can harden for fixation.

    For another example, how many laymen know that besides the most commonly used fracture treatment and correction treatment, plaster bandages can also be used on burns.

    Where is the plaster used in spinal surgery?  Does a plaster bandage immobilize the spine?

    Yes, a plaster bandage can be used to tie the waist and fix it with a lumbar support, but care must be taken not to restrict the patient's chest breathing, and it is contraindicated for pregnant women.  As for the current operating room, plaster bandages are temporarily unavailable. The scene of plaster application has changed and it has become the operating bed where the patient lies during the operation, which is euphemistically called the plaster bed.

    The plaster bed is hard and solid. When the patient lies on it, it is equivalent to the human bones being on a flat surface, which is convenient for orthopedic surgeons to observe and judge the position and angle of the bones and other matters.  Like today's posterior spinal surgery, the patient is in a prone position on the plaster bed, and the spine is supported by the plaster bed, which can better expose the surgical field.

    The nurse in the operating room helps the doctor adjust the patient's position and immobilize the patient.  Anesthesia is also done.

    Dr. Liu brought classmate Xie in and sterilized and spread the drapes before surgery just like other surgeries.

    While assisting Dr. Liu in preoperative preparations, Xie Wanying discovered that classmate Geng did not show up.  It was possible that Geng Yongzhe couldn't stand the sight of his younger brother lying on the operating table, or that Geng's mother was crying outside and needed comfort from his eldest son, so he didn't arrive for a long time.

    Orthopedic surgery is said to be more special than other surgical scenes. It involves bones. The first image that comes to mind is that the doctor is like a butcher using a knife to chop bones in a slaughterhouse.

    What is right here is that orthopedic surgeons do need to process human bones during surgery, and they need to use a knife to attack the bones.  A knife that can cut bones must be like the knives in the kitchen. If it is just an ordinary knife that cannot cut bones, a special knife is needed.  This kind of knife is called ultrasonic osteotome in orthopedics.

    What does an ultrasonic osteotome look like?  Is it as big as a bone-cutting knife?  No, the ultrasonic bone knife is similar to the ordinary electric knife. It is shaped like a pen, except that the blade surface of the knife head is larger than that of the electric knife.  Don't underestimate the appearance of this scalpel, which is just like a small knife. The principle of the ultrasonic bone knife uses high-frequency ultrasonic oscillation to destroy bones with a force that is absolutely comparable to that of a bone chopping knife.

    Not only that, the ultrasonic osteotome can adjust the working frequency. Under a certain frequency limit, it can simply perform mechanical damage on bones 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  Injuries to soft tissue focus on attacking bone lesions only.  In spine surgery, bones and nerves are anatomically closely related and always go together, requiring doctors to pay special attention during surgery.  The ultrasonic osteotome cannot cut soft tissue. Orthopedic surgeons can avoid accidentally injuring nerves and prevent postoperative sequelae. Therefore, the ultrasonic osteotome is a good baby.

    The nurse's instrument table has a row of ultrasonic bone blades, and the doctor can choose to switch the blades.  In addition to the ultrasonic osteotome, other conventional scalpels and electrosurgers are necessary.  The assistant lays out the surgical drape.

    The surgeon finished brushing his hands and entered the operating room.

    "Dr. Zhang, I'm sorry to trouble you today." Chang Jiawei put on the surgical gown with the help of the nurse and said to the anesthesiologist.  (Remember the website address: www.hlnovel.com
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