이중 점막피판을 이용한 수술후협부낭종의 치험 3예
Usefulness of Double Mucosal Flaps for Difficult-to-Treat Postoperative Cheek Cysts: Lessons From 3 Cases
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초록
Transnasal endoscopic inferior meatal antrostomy (IMA) has been increasingly used for the treatment of post- operative cheek cyst (POCC). Unfortunately, the rate of IMA site restenosis after surgery reportedly reaches ap- proximately 18.4%. Inverted U-shaped regional mucosal flaps are commonly placed at the inferior border of the IMA site to prevent restenosis. However, this method may be insufficient in cases of multiple cysts, particularly those surrounded by thick bony walls. We modified the traditional regional flap technique. In brief, an inferiorly based quadrangular flap and a posteriorly based triangular flap were used to cover the inferior and posterior bor- der of the IMA site, respectively, to minimize the bone-exposed surface. This modified technique was performed in three patients with multiloculated POCC. No complications and restenosis occurred during the follow-up peri- od. This modified technique may be a simple and efficient method to treat cases of multiloculated POCC, which are prone to recur after IMA.
Abstract
Transnasal endoscopic inferior meatal antrostomy (IMA) has been increasingly used for the treatment of post- operative cheek cyst (POCC). Unfortunately, the rate of IMA site restenosis after surgery reportedly reaches ap- proximately 18.4%. Inverted U-shaped regional mucosal flaps are commonly placed at the inferior border of the IMA site to prevent restenosis. However, this method may be insufficient in cases of multiple cysts, particularly those surrounded by thick bony walls. We modified the traditional regional flap technique. In brief, an inferiorly based quadrangular flap and a posteriorly based triangular flap were used to cover the inferior and posterior bor- der of the IMA site, respectively, to minimize the bone-exposed surface. This modified technique was performed in three patients with multiloculated POCC. No complications and restenosis occurred during the follow-up peri- od. This modified technique may be a simple and efficient method to treat cases of multiloculated POCC, which are prone to recur after IMA.
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