ayoonmedi

Back ground

Nowadays, thread lifting is one of the most common cosmetic procedures.

For strong fixation, a cogged thread loaded on a straight cannula is often used. However,

some parts of the face are curved because of the spherical skull.

If the thread loaded on the straight cannula is inserted along the curved surface,

the cannula will either pierce the skin surface again or get caught in the dermis and will not progress further.

In this case, a large portion of the cogged thread is exposed outside the skin and eventually removed, adversely affecting thread function and duration.

Objectives

The drooped nasolabial fold is corrected using the cogged thread loaded on the flex-form cannula, and its usefulness is verified.

Introduction

Recently, various attempts have been made to correct the drooping of the nasolabial fold with threads. However,

it is difficult to insert a sufficiently long cogged thread due to the natural convex curvature of the anterior mala area.

Using a bi-directional cogged thread loaded on a flexed cannula designed in a special shape devised by the author,

the nasolabial fold was corrected and its usefulness verified.

Materials and methods

The cannula was designed to fit the covex contour of the anterior mala. After trial and error, a 10cm sized cannula that was bent 160 degrees 3 times was completed,

and a PLACL bidirectional molding cogged thread was loaded onto the cannula, which was then used for nasolabial fold correction. Two methods were used.

The first low to high method is to make

an insertion point at the most protruding part on the

just lateral side of the nasolabial fold,

insert two threads, and then advance to the sideburn.

The second, high to low, is a method of making two different inserting points on the sideburn, inserting a thread at each inserting point, and advancing it to the lateral side of the nasolabial fold. In the general case, the low to high method was mainly used, and in the case of severe drooping, the high to low method was additionally performed. If necessary, filler injection was performed to correct depression of the medial side of the nasolabial fold and skin crease.

Results

A total of 214 patients were operated on from March 2021 to May 2023,

and the majority showed excellent results in the evaluation

conducted one week after the procedure.

In terms of the degree of correction,

it was clearly improved compared to the existing thread lifting.

Complications were reported in 16 cases of PIH that occurred at the inserting point of the nasolabial fold, and improved in 6 cases with additional laser treatment and in others without additional treatment.

Dimpling occurred in 4 cases and was resolved with filler.

In the high to low approach, an infection presumably

caused by hair insertion occurred, but was cured after thread removal.

Conclusion

The correction of the nasolabial fold

using the cogged thread loaded on the flexed cannula is

very useful and is expected to be applicable to other areas with curvature.