1. A system for measuring an alignment of a muscular skeletal system in an operating room comprising: a display, where the display shows at least a portion of the muscular skeletal system to be aligned; a sensor wherein the sensor includes an accelerometer configured to measure axial tilt of the sensor and wherein the sensor includes a receiver of a trigger system; and a wand wherein the wand includes an accelerometer configured to measure axial tilt of the wand, wherein the sensor is line of sight to the wand, wherein the sensor and the wand are configured to measure alignment of the muscular-skeletal system, wherein the wand includes a transmitter of the trigger system, and wherein a trigger signal transmitted by the trigger system is faster than a signal transmitted between the sensor and the wand.