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July 17, 1967

The Pelvic Tiltometer For Measuring Leg Shortening

JAMA. 1967;201(3):210. doi:10.1001/jama.1967.03130030080032

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To the Editor:—  The routine measurement of leg length is both tedious and time-consuming for trained personnel. At the present time there are few devices in common use for the rapid determination of pelvictilt leg shortening.A simple device, the pelvic tiltometer, is proposed for the rapid evaluation of patients suspected of pelvic-tilt leg shortening. If pelvic tilt is found, an accurate determination of leg lengths by conventional methods is indicated.The construction of this device is both simple and inexpensive (total cost $2.50). Materials needed consist of (1) one 9-inch bullet level, (2) rigid (outside) 8-inch caliper (both blades), (3) two 1/4-inch bolts, and (4) two 1/2-inch springs.The device may be constructed by boring and threading a 1/4-inch hole on the upper surface of each end of the bullet level. Each caliper is cut to a length of 5 1/2 inches (or it may be 8 inches in