McGraw B L, Adamson P A
Department of Otolaryngology, University of Toronto, Ontario.
Arch Otolaryngol Head Neck Surg. 1991 Aug;117(8):852-6. doi: 10.1001/archotol.1991.01870200046006.
Lower-eyelid malposition is one of the more serious complications encountered following lower-lid blepharoplasty, ranging in severity from mild lower-lid retraction to frank ectropion with marked lower-lid eversion. We define a grading system for postblepharoplasty lid malposition based on the severity of lower-lid retraction. In a critical review of 111 patients who underwent lower-lid blepharoplasty between January 1985 and January 1990, 15% were thought to have some degree of lower-lid retraction. Presence of lid laxity preoperatively and increasing amounts of skin excision at surgery were significant factors in the development of malposition. Placement of orbicularis suspension sutures tended to decrease the incidence of lid retraction. No patients had frank ectropion; however, three patients with grade 2 or 3 malposition required a secondary surgical procedure for correction. All three patients had resolution of their symptoms and good cosmetic results using standard treatment methods. A literature review and discussion of the causes, sequelae, and management of post-operative ectropion is presented as a reminder to surgeons performing blepharoplasty. Avoidance of this entity by appropriate preoperative assessment is emphasized, along with conservative operative technique. These factors combined are essential for the successful outcome of lower-lid blepharoplasty.
下睑位置异常是下睑成形术后较为严重的并发症之一,严重程度从轻度下睑退缩到明显外翻的真性睑外翻不等。我们根据下睑退缩的严重程度定义了一种睑成形术后睑位置异常的分级系统。在对1985年1月至1990年1月期间接受下睑成形术的111例患者进行的严格回顾中,15%的患者被认为有一定程度的下睑退缩。术前存在睑松弛以及手术中增加皮肤切除量是导致位置异常的重要因素。放置眼轮匝肌悬吊缝线往往会降低睑退缩的发生率。没有患者出现真性睑外翻;然而,3例2级或3级位置异常的患者需要二次手术矫正。所有3例患者采用标准治疗方法后症状均得到缓解,美容效果良好。本文对术后睑外翻的病因、后遗症及处理进行了文献综述和讨论,以提醒进行睑成形术的外科医生。强调通过适当的术前评估避免出现这种情况,同时采用保守的手术技术。这些因素结合起来对于下睑成形术的成功结果至关重要。