Tracheal reconstruction using S-shaped skin flaps and a conchal cartilage graft.

We have devised a technique of two-stage tracheal reconstruction using S-shaped skin flaps and an aural conchal cartilage graft. During the first operation, S-shaped skin flaps were elevated before resection of the trachea. A tracheocutaneous fistula was created at the tracheal defect using S-shaped skin flaps while placing the conchal cartilage graft underneath.

Surgical anatomy of the sphenoid sinus on the CT using multiplanar reconstruction technique.

Objective: To clarify the three-dimensional anatomical features of the sphenoid sinus and its surrounding structures as are relevant to performing an endoscopic sphenoidotomy.

Methods: Various dimensions of 224 CT images of the sphenoid sinus and surrounding structures from 122 Japanese adult patients were measured using the multiplanar reconstruction technique.

Results: The mean distance from the nasal sill to the sphenoid ostium was nearly 66 mm, and that from the sphenoid ostium to the posterior wall of the sphenoid sinus was nearly 14 mm.