PMC6260186_01
A lumbar spine CT scan.. Note: Sagittal plane image showing the broken needle at the L3 level - at a depth of 7 cm from the skin.
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A CT scan of the lumbar spine performed on first postoperative day revealed a 5 cm metallic placated needle (Figure 1).
A lumbar spine CT scan.. Note: Horizontal plane image showing the needle in the right paravertebral space within the erector spinae muscle.
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The needle was located within the erector spinae muscle at a depth of 7 cm from the skin, 1 cm to the right of the L3 spinous process, and 1 cm from the right posterior articular mass (Figure 2).