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JA Clinical Reports
Fig. 2 | JA Clinical Reports

Fig. 2

From: Predictive underestimation of difficult direct laryngoscopy in a patient with rheumatoid arthritis-associated immobilized craniocervical junction

Fig. 2

Plain radiograph (lateral view) in neutral position (left) and maximum neck retroflexion (right). The distance between the occiput and the spinous process of the axis is not shortened by maximum cervical retroflexion (bidirectional red arrows, same size on both sides). Blue lines represent the axis of the lower spine and the axis of the upper spine. Maximum retroflexion of the entire neck is 64° (right)

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