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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Anterior reduction and C1-ring osteosynthesis with Jefferson-fracture reduction plate (JeRP) via transoral approach for unstable atlas fractures

Fig. 1

A represent case (A, B, C, and D) Preoperative X-ray and CT showed C1 fracture. C There were fracture lines in both anterior and posterior arches (Gehweiler type III). The LMD value measured on the open X-ray film was 7.28 mm (A), and the value measured on the coronal CT film was 6.54 mm (D). The MRI showed that the TAL had a high signal (red arrow) at the attachment point of the left lateral mass, considering an avulsion injury (Dickman type II). While compression of the spinal cord was not observed (E)

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