A Modified Eggshell Technique for Sclerosing Thoracic Disc Herniation
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS(2023)
Abstract
Sclerosing thoracic disc herniation refers to a condition in which the intervertebral disc in the thoracic region protrudes and becomes calcified, causing compression on the spinal cord and/or nerve roots. Sclerosing herniation of the thoracic disc poses a significant danger as it can lead to serious complications like paraplegia during or after surgery. Iatrogenic spinal cord injury is a common risk for individuals diagnosed with sclerosing thoracic disc herniation due to the inflexible protrusion of the sclerosing disc into the spinal canal and its adhesion to the ventral side of the dural sac. The challenging and crucial aspect of the surgery is how to safely and efficiently eliminate the hardened tissue. The eggshell method is a surgical procedure that addresses the kyphosis abnormality of the spinal column by excavating the vertebral body via the pedicles and subsequently inserting the kyphotic fracture block into the excavated vertebral body. In this article, a revised surgical method using the eggshell technique will be presented for the treatment of sclerosing thoracic disc herniation. The surgical procedure briefly involves hollowing out the anterior intervertebral space of the hardened disc tissue to create an eggshell-like structure, with the sclerotic tissue forming the posterior wall. Subsequently, the sclerotic disc tissue is pushed into the hollow intervertebral space to achieve complete decompression of the ventral spinal cord. The safety and effectiveness of this approach for treating sclerosing thoracic disc herniation have been confirmed.
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