PMC8168678_01
The site of dural puncture by a spinal needle placed in the wrong location during level identification. (a) T2-weighted magnetic resonance imaging showing cranially migrated disc herniation at the level L4-L5. (b) Location of the spinal needle at the level L4-L5, with a relatively deep position between the spinal process. (c) Intraoperative images reveal the single interrupted stitch at the dura (arrow), with depiction of the L5 nerve and underlying disc herniation.
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F1
L5 radiculopathy on the right side refractory to conservative therapies. Lumbar magnetic resonance imaging revealed a right-sided cranially migrated lumbar intervertebral disc herniation at the level L4-L5, compressing the L5 nerve root [Figure 1a]. The L4-5 interspace was localized using a 24-gauge (length 90 mm) Sprotte tip needle inserted on the right side [Figure 1b]. Subsequently, a sequestrectomy was performed [Figure 1c], completely releasing the dural sac and spinal nerve.