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  • Writer's picturePhilip Henkin

How Is a Craniotomy Performed?

An incision in the skull (craniotomy) provides access to the brain for surgical purposes. A piece of the skull has to be cut away during surgery. A craniotomy operation might be necessary to treat a wide range of disorders. For example, a craniotomy may be necessary for trigeminal neuralgia or hydrocephalus. To gain access to the cranial base with little brain retraction, neurosurgeons often perform an orbitozygomatic craniotomy. There are two primary variants of this method, both of which enhance the working space by increasing the operative angles. The operation is similar to a standard craniotomy, except for removing the orbital roof. The authors present a streamlined approach and evaluate its clinical utility in this research.


Originating in 1982, the orbitozygomatic method has been used in numerous clinical trials. For example, Jane and her coworkers modified a frontal craniotomy through a bone flap encompassing the orbital roof and a lateral edge of the frontal lobe. Because of these alterations, reaching the anterior skull base and the orbit floor is now possible. In the individual approach, three boreholes are linked to generate a single bone flap. Brain surgery, known as "fragmentary frameless stereotaxy," uses a computer-based imaging module and fiducial markers to guide surgeons. The imaging gives the surgeon continuous, "real-time" data on the location of a lesion, making surgery far more successful. When dealing with massive brain tumors, this method shines.


A little incision is made on the patient's scalp while unconscious, and the procedure is completed. The surgical team employs cameras when registering fiducials on the patient's scalp. Before surgery, the patient has a very quick beard shave. After making and sterilizing a tiny incision in the skull, the patient can receive treatment. The dura is exposed through the quarter-sized incision, and a stereotactic biopsy needle is guided to the precise location by a neuronavigation device.


For her trigeminal neurological discomfort, A patient just underwent a craniotomy. However, it did not help. She has been suffering from persistent pain for almost six months despite multiple treatments—including nerve blocks, an intravenous infusion over three days, botox, physical therapy, and natural remedies. Furthermore, she has undergone three successful nerve decompression operations. She's been to the doctor a dozen times, yet the agony still prevents her from working. Trigeminal neuralgia causes pain in various locations in the head, including the face. The trigeminal nerve, responsible for facial, oral, and nasal feelings, is damaged. Symptoms may worsen or persist over time, often prompted by everyday actions like eating or smiling.


Hydrocephalus is a progressive brain disorder that leads to tissue compression in the brain. Any age group is at risk, but infants and the elderly are more likely to be affected. Symptoms vary from person to person but often include loss of function due to increased intracranial pressure. Hydrocephalus can be diagnosed in a patient by performing a battery of tests.


The patient will be sedated and placed on a table during a craniotomy. Having a ventilator-connected breathing tube inserted into their throat is another option. Because of this, the patient will have a steady oxygen supply during the operation. Next, the patient's head is immobilized using a 3-pin skull clamp affixed to the table. Finally, in preparation for surgery, a shaved 1/4-inch wide strip of skin and muscle is created on the patient's head along the intended incision line.


In cases of severe epilepsy in children, a craniotomy may be recommended. The hippocampus is the specific area of the skull that must be opened up for access to the brain. The use of electrodes to activate localized brain regions is potentially a possibility. A general anesthetic is typically used for this surgery. A conscious patient can be monitored for brain activity, and pain managed throughout some procedures.


Surgery for epilepsy requires a thorough evaluation by medical professionals. Next, the team will conduct diagnostic tests to pinpoint the optimal surgical area and determine precisely which brain processes will require intervention. It is possible to perform these exams as an outpatient or in a hospital setting. A baseline electroencephalogram, for instance, measures electrical activity in the brain when a person is not having seizures and can help a doctor determine what regions may be at risk.


Postoperative hematoma following craniotomies is a common complication. However, this ailment may usually be prevented. According to research by Fukamachi A, Koizumi H, and Nukui H, risk factors for developing a postoperative hematoma have been identified. However, its origins remain unknown. Though hematomas can grow in other brain parts, they most commonly form near the surgical site. Cerebellar hematomas are extremely unusual complications of supratentorial craniotomies.

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