Phalen's maneuver

Phalen's maneuver

 [fa´lenz] to detect carpal tunnel syndrome, the size of the carpal tunnel is reduced by flexion (or extension) of the affected wrist for 30 to 60 seconds, or by inflating a sphygmomanometer cuff around the involved hand to a point between diastolic and systolic pressure for 30 to 60 seconds. Pain or paresthesias occur along the distribution of the median nerve when the patient has carpal tunnel syndrome.Pain and/or paresthesias are produced in the distribution of the median nerve when the hands are held in flexion for 30 to 60 seconds. From Goldman and Bennett, 2000.