Conoyer J Matthew, Netterville James L, Chen Anton, Vos Jeremy D
Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University School of Medicine, Nashville, TN 37232-8605 , USA.
Ann Otol Rhinol Laryngol. 2006 Nov;115(11):837-45. doi: 10.1177/000348940611501108.
Loss of functional and supporting architecture in the paraglottic space (PGS) necessitates augmentation to restore phonation and prevent aspiration. Our previous PGS reconstructions using an inferiorly based sternohyoid muscle flap have shown a propensity to fibrose over time, tethering the vocal fold inferolaterally. Poor voice outcomes have led us to explore other reconstructive options such as the laterally based vascularized fat flap described below. Our objectives in the present study were 1) to discuss phonosurgical options for reestablishing PGS volume after removal of an oversized implant or after definitive resection of Teflon granuloma; and 2) to understand the surgical technique, indications, and functional prognosis of the laterally based fat flap used for augmenting the "e mpty" PGS. Fourteen cases of PGS reconstruction with a laterally based subplatysmal fat flap were retrospectively investigated for indications, functional outcome, and the need for subsequent phonosurgical procedures. Preoperative and postoperative voice and videostroboscopic findings were analyzed.
Fat flap augmentation helped achieve subjective vocal improvement in patients with an empty PGS. A subset of our patients demonstrated fat flap atrophy within 12 months, prompting revision laryngoplasty. Viable flaps were encountered in each revision, facilitating future medialization attempts.
Fat flap reconstruction of the PGS is a versatile, beneficial adjunct for revision medialization in select cases.
声门旁间隙(PGS)功能及支持结构的丧失需要进行填充以恢复发声并防止误吸。我们之前使用低位蒂胸骨舌骨肌瓣进行的PGS重建显示,随着时间推移有纤维化倾向,导致声带向外侧下方固定。较差的嗓音结果促使我们探索其他重建方法,如下文所述的外侧蒂带血管脂肪瓣。本研究的目的是:1)讨论在移除过大植入物或彻底切除聚四氟乙烯肉芽肿后重建PGS容积的嗓音外科手术选择;2)了解用于填充“空虚”PGS的外侧蒂脂肪瓣的手术技术、适应证及功能预后。回顾性研究了14例采用外侧蒂颈阔肌下脂肪瓣进行PGS重建的病例,分析其适应证、功能结果及后续嗓音外科手术的必要性。分析术前和术后的嗓音及频闪喉镜检查结果。
脂肪瓣填充有助于改善PGS空虚患者的主观嗓音。部分患者在12个月内出现脂肪瓣萎缩,促使进行翻修喉成形术。每次翻修时均发现存活的脂肪瓣,便于未来进行声带内移尝试。
PGS脂肪瓣重建是特定病例中用于翻修声带内移术的一种通用且有益的辅助方法。