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. 2023 Dec 31;20(4):1124–1131. doi: 10.14245/ns.2346936.468

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Copyright © 2023 by the Korean Spinal Neurosurgery Society

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — The osteoporotic fracture classification (OF classification) proposed by the Spine Section of the German Society of Orthopedics and Trauma (DGOU) [3]. OF1: X-ray and computed tomography scans show no spinal deformity, and only MRI-STIR sequences clearly show vertebral edema. OF2: Minor deformity with no or less than 1/5 posterior wall involvement and fracture of only one endplate. OF1 and OF2 are stable injuries. OF3: Deformity with more than 1/5 posterior wall damage. Damage to the anterior and posterior walls that can be called incomplete ruptured fractures. Fractures may be unstable. OF4: Loss of the vertebral frame structure, vertebral body collapse, pincer-type fracture. OF5: Injuries with distraction or rotation. MRI-STIR, magnetic resonance imaging short inversion time inversion recovery.