• Salman Sharif, M Yousuf Shaikh, and S Maroof Ali.
• Department of Neurosurgery, Liaquat National hospital, Karachi, Pakistan. Electronic address: Sharifsalman73@gmail.com.
• World Neurosurg. 2019 Nov 1; 131: 339-345.

AbstractCylindrical tubular ports are among the most innovative dynamic tools added to the neurosurgery armamentarium. The rationale behind the use of tubular systems lies in the knowledge that damage to surrounding tissues is minimized with the equal pressure exerted by the walls of the cylinder. A microscope or an endoscope is used for visualization in the tubular ports. Neuronavigation is an essential adjuvant to ensure avoiding injury to essential brain tracts and parenchyma. In the present report, we focused on 3 commonly used cylindrical retractor systems, including the ViewSite, BrainPath, and syringe port. The custom-made syringe port system is used by us and is cost effective. It costs only the price of a syringe. The efficacy and safety of tubular port systems have been shown in limited studies. The complications associated with the port system have been minimal, and injury to the brain has been reduced by the equal pressure exerted by the walls of the port.Copyright © 2019 Elsevier Inc. All rights reserved.

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