In the article titled “Maladjustment of programmable ventricular shunt valves by inadvertent exposure to a common hospital device”, published on pages 51, Issue 1, Volume 9 of Surgical Neurology International,[1] the wrong sentence was published as “Finally, the Polaris Sophysa valve, requiring the strongest magnetic force, was altered at 170 G when placed directly against the device.[14]” instead of “ The Sophysa Polaris valve was not altered by a magnet at any distance, due to its unique architecture designed to resist maladjustment by requiring simultaneous unlocking movement, in opposite directions, of two internal micromagnets.”