Facial lifting with Aptos methods（4）
The latest innovation in this series is the Aptos Needle 2G, which is more stable and radical than the previous Aptos Needle [2] . Aptos Needle 2G, has one thread with diverse prominences and two needles; these needles are double-edged and the thread is connected to them in the central area, as in case of the Aptos Needle [Figure 6].
Lifting of facial areas with active muscular movements such as perioral area presented special challenges. For such cases,（lifting of so-called sadness fold or jowls）, the principle of elastic lifting was developed in 2003. Elastic lifting is achieved by spring threads called Aptos Springs, made of polypropylene, which keep "memory". [3] Aptos Springs are able to lift and fix soft tissues and at the same time also stretch and contract together with muscles. The lifting effect of such springs is supplemented by fibrous tissue accrued around threads [Figure 7].
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