A Delayed Postoperative C5 Palsy due to Spinal Cord Lesion: A Typical Clinical Presentation but Unusual Imaging Findings

Figure 1

Preoperative images. Preoperative MRI (a, b, and c) and CT myelogram (d, e, and f) showed mixed-type OPLL compressing spinal cord, especially at C3-4 (OPLL canal occupying ratio: 50%). MRI showed no obvious cord signal change and cord enlargement (a, b, and c). The anterior-posterior diameters of right and left C4/5 foramen were 3.8 mm and 3.5 mm, respectively (f).

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