Chapter 1930 [1930] Different Tools
Is a special bandage soaked with slaked lime. At this time, the plaster bandage is soft, and only in this way can it be bound or applied to the relevant parts of the patient for shaping, and then wait for the slaked lime to harden to fix it.
For another example, how many laymen know that plaster bandages can be applied to burns in addition to the most commonly used fracture treatment and correction.
Where is plaster cast used in spine surgery? Does a plaster cast immobilize the spine?
Yes, plaster bandages can be tied around the waist as a lumbar support, but care should 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 not used for the time being, and the scene of plaster application has changed to the operating bed where the patient lies during the operation, which is called a plaster bed.
The plaster bed is hard, and when the patient lies on it, it is equivalent to the human bones being on the same plane, which is beneficial for the orthopedic surgeon to observe and judge the position and angle of the bones. For the posterior spinal surgery performed today, the patient is placed in a prone position on the plaster bed, and the spine is supported by the plaster bed, which can better expose the surgical field of view.
The nurse in the operating room helps the doctor adjust the patient's position and fixes the patient. Anesthesia is also done.
Dr. Liu brought classmate Xie in and sterilized the drape before the operation like other surgical operations.
Assisting Dr. Liu in preoperative preparations, Xie Wanying found that Geng did not show up. It may be that Geng Yongzhe couldn't bear to see his younger brother lying on the operating table, or Geng's mother was crying outside and needed comfort from his elder son, so she was late.
Orthopedic surgery is said to be more special than other surgical scenes. It involves bones. The first thing people think of is that the doctor is like a butcher chopping bones with a knife in a slaughterhouse.
What is not wrong here is that orthopedic surgeons do need to deal with human bones during surgery, and they need to use a knife to start with the bones. Knives that can cut bones must be like knives in the kitchen. If it is just an ordinary knife that cannot cut bones, special knives are needed. This kind of knife is called ultrasonic bone knife in orthopedics.
What does an ultrasonic osteotome look like? Is it as big as a bone cutter? No, the ultrasonic bone knife is similar to the ordinary electric knife, with the shape of a pen, except that the blade of the knife head is larger than the electric knife. Don't underestimate the fact that the scalpel doesn't change much in appearance and is just a small knife. The principle of the ultrasonic bone knife uses high-frequency ultrasonic oscillations to produce bone-destroying strength that is absolutely comparable to a bone-chopping knife.
More than that, the ultrasonic osteotome can adjust the working frequency. Under a certain frequency limit, it can simply mechanically destroy the bone with high acoustic impedance and calcified and mineralized hard tissue, and at the same time automatically screen out the soft tissue with low acoustic impedance to avoid Injuries to soft tissues focus on attacking only bone lesions. In spinal surgery, anatomically, bones and nerves are closely related and always go hand in hand, requiring doctors to pay special attention during surgery. Ultrasonic osteotome can't cut soft tissue, so orthopedic surgeons can avoid accidentally injuring nerves and prevent postoperative sequelae. Therefore, ultrasonic osteotome is a good baby.
The nurse's instrument table has a row of ultrasonic bone cutter heads, and the doctor can choose to switch the cutter head. In addition to the ultrasonic osteotome, other conventional scalpels and electric scalpels are necessary. The assistant spreads the surgical drape.
The chief surgeon entered the operating room after brushing his hands.
"Doctor Zhang, I'm sorry to trouble you today." Chang Jiawei said to the anesthesiologist after putting on the surgical gown with the assistance of the nurse.