Lateral Canthal Support in Prevention of Lower Eyelid Malpositioning in Blepharoplasty: The Tarsal Sling.

Lower blepharoplasty is a cornerstone in facial rejuvenation and improvement. Despite its popularity, several adverse effects have been described; of these, postsurgical eyelid displacement, with its aesthetic and functional consequences, is one of the more frequent complications. The tarsal sling procedure is a simplified canthopexy consisting in the fixation of the lateral portion of the septum--the canthal ligament--to the orbital wall periosteum. The aim of the current research is to demonstrate how the tarsal sling technique is effective in the prevention of lower lid malpositioning. A retrospective analysis of 40 consecutive healthy individuals was carried out. In group 1, 20 patients underwent standard blepharoplasty; in group 2, blepharoplasty was associated to the tarsal sling canthopexy. Pre- and postsurgical position of the lower eyelid margin was compared through photographic measurements at 5 time points and statistical analysis performed. Group 1 patients evidenced an increased distance between the interpupillary line and the lateral aspect of the lower lid margin. A progressive spontaneous improvement (reduction in scleral exposition) was detected. Patients who underwent the tarsal sling procedure (group 2) reported a postoperative overcorrection of scleral appearance. Two years postsurgery, progressive relapse occurred, but the lower eyelid did not reach presurgical values and maintained a slight degree of overcorrection. Tarsal sling is an easy, fast, and efficacious procedure to prevent eyelid displacement in lower blepharoplasty. Its routine use is a tool to assure further support to lower lids in the younger patients or when lid laxity is absent during presurgical examination.