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Neurosurgery

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Neurosurgery is a highly specialized medical field. It focuses on the surgical treatment and rehabilitation of disorders. These disorders affect the entire nervous system. This system includes the brain and the spinal cord. It also includes the peripheral nervous system and the cerebrovascular system.

Neuropathology case V 03
Neuropathology case V 03

While many people call it brain surgery, neurosurgeons also manage many conditions without using surgery at all. This field is essential for treating injuries and diseases that disrupt how the body communicates.

Modern neurosurgery relies on extreme precision and advanced technology. Surgeons use a wide variety of specialized instruments. These include chisels, curettes, dissectors, and distractors. They also use elevators, forceps, hooks, and impactors. To see and clear the surgical site, they use probes and suction tubes.

Parkinson surgery
Parkinson surgery

Many of these tools have been used for a long time. However, modern versions are crafted with incredible accuracy. Their edges are often within a single millimeter of the desired target. Newer technologies include handheld power saws and even robots. For example, the University of Utah developed a robotic cranial drill. This device uses a computer-aided design system to guide the cutting path.

Neurosurgery is divided into several distinct branches. General neurosurgery handles most common conditions. This includes neurotrauma and emergencies like intracranial hemorrhage. Other doctors choose to pursue advanced specialization through one or two years of fellowship training. Vascular neurosurgery focuses on blood vessels. This includes clipping aneurysms or performing a carotid endarterectomy.

Robert Spetzler in a Neurosurgeons Group
Robert Spetzler in a Neurosurgeons Group

Oncological neurosurgery, or neurosurgical oncology, treats both benign and malignant cancers. This includes specialized work in pediatric oncological neurosurgery for children.

Other specialized branches address very specific neurological issues. Epilepsy surgery helps patients manage seizures. This might involve a corpus callosotomy, which is severing part of the corpus callosum. In rare cases, surgeons may perform a lobectomy or a hemispherectomy. These procedures involve removing parts of a brain lobe or an entire hemisphere.

Stereotactic and functional neurosurgery are also important branches. These fields use specific techniques to treat functional disorders of the brain.

Medical training for neurosurgeons is a long and difficult journey. Requirements vary by country. In the United States, a student completes four years of undergraduate education. They then attend four years of medical school. After that, they must complete seven years of residency training. In the United Kingdom, the neurosurgical pathway is independent and takes about eight years. In India, the process can span three to six years after earning a medical degree. Neurosurgery is a very small and highly competitive specialty. In the U.S., neurosurgeons make up only 0.5 percent of all physicians.

Humans have attempted neurosurgical procedures for thousands of years. Ancient civilizations practiced trepanation, which is making a hole in the skull. The Incas used this method long before European colonization. In the Roman Empire, surgeons treated depressed skull fractures. During the Middle Ages, Al-Zahrawi treated spinal injuries and hydrocephalus. In China, Hua Tuo invented mafeisan, the first general anesthesia used for brain surgery.

Significant modern milestones include William Macewen's first successful brain tumor removal in 1879. Later, in 1907, Hermann Schloffer successfully removed a pituitary tumor.

Technological discoveries have changed how we understand the brain. In 1878, Richard Caton discovered electrical signals in the brain. In 1950, Jose Delgado implanted the first electrode into an animal's brain. This allowed him to change the animal's direction. In 1972, the cochlear implant became commercially available to help deaf people hear. In 1998, Philip Kennedy implanted the first Brain Computer Interface into a human. These advancements connect neurosurgery to the broader fields of engineering and computer science.

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File:Parkinson surgery.jpg
Parkinson surgery.jpg
File:Edinburgh Skull, trepanning showing hole in back of skull Wellcome M0009393.jpg
Edinburgh Skull, trepanning showing hole...
File:Robert Spetzler in a Neurosurgeons Group.jpg
Robert Spetzler in a Neurosurgeons Group.jpg
File:Neuropathology case V 03.jpg
Neuropathology case V 03.jpg
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