Extradural Remodeling in Empty Sella Syndrome: 3-Dimensional Operative Video.

Sellar arachnoidocele is a term used to define the herniation of the subarachnoid space to the sella. This is a rare radiologic finding that, in most cases, does not require treatment. When symptoms appear, the term empty sella syndrome is used. Two varieties exist: primary and secondary empty sella syndrome. The aim of this 3-dimensional operative video (Video 1) is to demonstrate the extradural microsurgical remodeling of the sellar fossa with autologous bone in 2 cases of primary empty sella syndrome. Both patients signed an informed consent for the procedures and agree with the use of their images for research purposes. In both cases, magnetic resonance imaging scans showed herniation of the subarachnoid space into the pituitary fossa and an anchor-like silhouette on coronal view. Patients evolved favorably, improving their visual deficit after the surgery, as can be observed in the postoperative visual field study. If surgery is indicated due to visual loss, the procedure is known as chiasmapexy. Recently, Guinto et al described a technique for chiasmapexy. Our team considers this procedure to be useful, technically simple, and low cost. Being autologous, rejection possibilities are almost null. This 3D video serves as a complement to illustrate the technique.