Abstract
Symptomatic midline sacral meningeal cysts (MSMC) are rare, and, as a consequence, so are reports on the surgical techniques to address these lesions. Here we provide a description of the senior author's (ATC) technique. A sacral laminectomy is performed. The cyst's relation with the dural sac and sacral nerves is inspected; it is then opened and drained. Its lumen is explored for its point of communication with the dural sac, and this ostium is closed off with non-penetrating clips. A lumbar drain is inserted in select cases. Cyst wall resection is unnecessary and closing the ostium is sufficient to treat MSMC.
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