Neurological Surgery Overview

Principles

Definition

Neurological surgery is a medical and surgical specialty dedicated to the prevention, diagnosis, treatment, and rehabilitation of disorders affecting the entire nervous system, including the brain, spinal column, spinal cord, and peripheral nerves. As a research field and academic discipline, it investigates the pathophysiology of these conditions and develops advanced surgical techniques and interventions aimed at restoring neurological function and improving patient outcomes.

Ontological type

Core Procedures

Surgical Technologies

Outcomes and Complications

Key developments

Key Figures

Outcome-Focused Systematization era

Wilder Penfield of the Montreal Neurological Institute advanced brain-protective strategies through awake craniotomy and intraoperative cortical mapping, enabling precise functional localization during tumor and vascular procedures. Lars Leksell introduced the stereotactic frame in the 1950s, enabling precise lesion targeting, biopsy, and standardized operative planning that informed outcome expectations in neurovascular and functional neurosurgery. Herbert Olivecrona and his Swedish colleagues refined cerebrovascular surgery, advancing aneurysm clipping techniques and vascular anatomy mapping to improve prognostic frameworks and reduce operative risk. Robert Sunderland established a five-degree classification of peripheral nerve injuries to standardize prognosis and repair decisions, while the Frankel spinal cord injury classification provided outcome-oriented prognostic categories for acute trauma management.

Precision Functional Microsurgery era

Pierre Pollak [1] contributed during the Precision Functional Microsurgery era, with affiliations including Université Joseph Fourier [3] and Sorbonne Université [4]. One of his key contributions was the development of combined thalamotomy and stimulation stereotactic approaches for the VIM thalamic nucleus in bilateral Parkinson disease, as described in Combined (Thalamotomy and Stimulation) Stereotactic Surgery of the VIM Thalamic Nucleus for Bilateral Parkinson Disease [7], which advanced precision target exposure and functional modulation. Volker K.H. Sonntag [2] contributed to the Precision Functional Microsurgery era with affiliations at University of Alabama at Birmingham [5] and University of California, Davis [6]. His work on spinal epidural hematoma management, as detailed in Surgical management of spinal epidural hematoma: relationship between surgical timing and neurological outcome [8], underscored the importance of timely intervention and informed perioperative decision-making in this precision era.

Evidence-Guided Personalized Care era

Andrew Molyneux [1] is associated with Harvard University [3] and Icahn School of Medicine at Mount Sinai [4] during this era. His key contribution in this era is the International Subarachnoid Aneurysm Trial (ISAT) [7], a landmark randomized trial comparing clipping and endovascular coiling in ruptured intracranial aneurysms. J.P. Mohr [2] is associated with University of California, San Francisco [5] and Stanford University [6] during this era. His key contribution in this era includes the ARUBA trial [8], Medical management with or without interventional therapy for unruptured brain arteriovenous malformations (ARUBA): a multicentre, non-blinded, randomised trial, which informed evidence-guided decision-making about interventional therapy for unruptured AVMs.