The Morrow Institute, Rancho Mirage, California 92270, USA.
Ophthalmic Plast Reconstr Surg. 2010 May-Jun;26(3):176-81. doi: 10.1097/IOP.0b013e3181b8c00a.
Postblepharoplasty lower eyelid retraction is often due to scarring of the middle lamellae and/or vertical shortening of the anterior lamellae. Traditional reconstructive techniques involve a transconjunctival incision combined with a spacer graft. Other techniques involve a subperiosteal midface dissection or limited preperiosteal dissection. Elevation of the midface reduces the gravitational effect of the cheek on the eyelid and recruits skin for the anterior lamella. This study evaluates a technique for correction of lower eyelid retraction using a preperiosteal midface lift via a lateral canthal incision in a series of patients.
Twenty-eight patients (56 eyes) with postblepharoplasty lower eyelid retraction were evaluated. Preoperative evaluations for inferior scleral show, corneal staining, and epiphora were documented. The patients underwent bilateral preperiosteal midface lift and canthoplasty via a lateral canthal incision. Follow-up ranged from 12 to 18 months.
Average preoperative inferior scleral show was 1.96 mm (range, 1-3 mm). Seventy-eight percent of patients had epiphora, and 54% had corneal staining. Average postoperative lower eyelid position was +0.07 mm (range, 0 to +1 mm) above the inferior limbus. Average change in lower eyelid position relative to the inferior limbus was 2.04 mm. In all eyes, the final lower eyelid position was either at the inferior limbus or above it. All eyes had resolution of epiphora and corneal staining. Two patients required revision of lateral canthus on one side to improve symmetry.
Mobilizing the midface in the preperiosteal plane through a lateral canthal incision provides excellent elevation and support of the eyelid. The small incision allows easy access to adhesions along the inferior orbital rim and to the preperiosteal plane beneath the entire midface. Preperiosteal midface lift combined with canthoplasty provides significant improvement of postblepharoplasty lower eyelid retraction.
下眼睑成形术后的下眼睑退缩通常是由于中隔瘢痕和/或前隔垂直缩短所致。传统的重建技术包括经结膜切口联合间隔物移植物。其他技术包括骨膜下中面部解剖或有限的骨膜前解剖。抬高中面部可减少脸颊对眼睑的重力影响,并为前隔招募皮肤。本研究评估了一种通过外侧眦切口行骨膜前中面部提升术矫正下眼睑退缩的技术,该技术在一系列患者中得到应用。
评估了 28 例(56 只眼)下眼睑成形术后下眼睑退缩的患者。记录下巩膜暴露、角膜染色和溢泪的术前评估。患者行双侧经外侧眦切口骨膜前中面部提升术和眦成形术。随访时间为 12 至 18 个月。
平均术前下巩膜暴露为 1.96 毫米(范围,1-3 毫米)。78%的患者有溢泪,54%的患者有角膜染色。平均术后下眼睑位置比下睑缘高 0.07 毫米(范围,0 至 1 毫米)。下眼睑位置相对于下睑缘的平均变化为 2.04 毫米。所有眼睛的最终下眼睑位置均在下睑缘或其上方。所有眼睛的溢泪和角膜染色均得到解决。有 2 例患者需要对一侧的外侧眦进行修复,以改善对称性。
通过外侧眦切口在骨膜前平面移动中面部可提供极好的眼睑提升和支撑。小切口便于进入下眶缘的粘连,并进入整个中面部的骨膜前平面。骨膜前中面部提升术联合眦成形术可显著改善下眼睑成形术后的下眼睑退缩。