PMC2729274_01
A sagittal reconstructed computed tomogram (CT). Nonunion of the T1 spinous process fracture (arrowheads) and slight anterolisthesis of C7/T1 are detected.
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A sagittal reconstructed computed tomogram (CT) indicated nonunion of the T1 spinous process fracture and slight anterolisthesis of C7 (Figure 1).
MRI on T2-weighted image.
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The axial planes of MRI demonstrated triangular deformity of the spinal cord and surface irregularity of the facet joints (Figure 2).
Postero-anterior view of myelogram. The contrast medium stops completely at C7/T1 disc level.
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C7/T1 (Figure 3). Computed tomographic myelography clearly indicated a spinal cord deformity in an antero-posterior direction and severe arthrosis with bony spur formation from the bilateral C7/T1 facet joints growing into the spinal canal, which was right side dominant (Figure 4).
Computed tomographic myelography at C7/T1 level. The spinal cord is compressed from both sides and shows atrophy. The right C7/T1 facet joint indicates severe arthrosis (arrow) with bony spur extending into the spinal canal (arrowhead).
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C7/T1 (Figure 3). Computed tomographic myelography clearly indicated a spinal cord deformity in an antero-posterior direction and severe arthrosis with bony spur formation from the bilateral C7/T1 facet joints growing into the spinal canal, which was right side dominant (Figure 4).
Radiographs one year postoperatively.
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Facet fusion was completed 1 year postoperatively, and no instability was detected in C7/T1, as confirmed by dynamic flexion-extension radiographs (Figure 5).