Verification of Roentgenographic Landmarks in the Lumbar Spine

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Abstract
Using biplanar roentgenography, the three–dimensional spatial locations of various bony landmarks on the human lumbar vertebrae were calculated, and their positions compared with anatomically determined values via sectional technique. A previously described method was found to be accurate for localizing bony landmarks in space when the vertebral end–plates or superior pedicles could be seen on anteroposterior and lateral films. The experimental technique simulated in vivo conditions, suggesting that biplanar roentgenography is a useful method for study of vertebral orientation and motion in living subjects.

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