“…Recently, platelet gel packing and sodium hyaluronate-carboxymethylcellulose (HA-CMC), which prevent adhesions, have been used, but the efficacy of these materials remains unclear. [7][8][9][10] Compared with the method described by Thornton,4 our technique is relatively simple to perform because fixation of the Silastic sheet is generally performed at the anterior to middle portion of septal cartilage. Our procedures also provide little difficulty in the postoperative care of the ethmoid sinus and frontal recess area, compared with inserting an inverted U-shaped Silastic sheet.…”