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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

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

Fig. 4

Schematic diagram of JeRP plate treating C1 fracture. A The JeRP plate was placed in the center of the anterior arch of C1 and screwed into the upper screw hole on the lateral mass near the fracture line. A temporary reduction screw was screwed into the long-elliptic hole, and the nut was about 3 mm away from the bone surface of the anterior arch. The JeRP specialized repositor was used to compress the plate and the temporary screw. B After making the fracture end fit tightly, the other lateral mass screws were tightened, the temporary screw was removed, and the entire reduction fixation process was completed

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