[Effectiveness of modified transsection and longitudinal suture in epicanthoplasty]

To introduce a modified transsection and longitudinal suture in epicanthoplasty and summarize its effectiveness.

The clinical data of 119 patients underwent epicanthoplasty with modified transsection and longitudinal suture and with a follow-up time over 6 months between February 2014 and December 2016 were retrospectively analyzed. There were 8 males and 111 females with an average age of 22.7 years (range, 18-38 years). The epicanthus was as eyebrow type in 12 cases, as eyelid type in 57 cases, as tarsalis type in 39 cases, and as backward type in 11 cases. The narrow degree of epicanthus included mild (the lacrimal caruncle covered size was less than 1/3) in 42 cases, moderate (the lacrimal caruncle covered size was between 1/3 and 2/3) in 58 cases, and severe (the lacrimal caruncle covered size was over 2/3) in 19 cases. One hundred and thirteen patients were treated by blepharoplasty at the same time. The new canthus was located on the basis of the inner canthus physiological aesthetics. Through a short transverse incision, dislocated orbicularis oculi muscle near medial canthal ligament and the fiber between the medial canthal ligament and skin were completely released; then the medial canthal ligament was shortened precisely and the incision was tension-free sutured followed the Langer's line near eyes.

All the incisions healed by first intention. All patients were followed up 6 months to 2 years (mean, 8.6 months). The bilateral hypertrophic scar on both bilateral medial canthal incisions happened in 3 patients at 3-6 months after operation; and the scarring gradually subsided at 10 months after the diprospan injections and the siliconegel and carbon dioxide laser treatment. Good effectiveness were obtained in the other patients, whose inner intercanthal distance significantly narrowed, both of the horizontal lid fissure length increased, the lacrimal caruncle fully exposed, and no obvious scar could be seen.

The modified transsection and longitudinal suture in epicanthoplasty has the advantages of simple design, easy operation, minimally invasive, inconspicuous scar, and obvious, stable, and lasting postoperative effectiveness.