Plastic surgery hospitals usually don't mention the adverse reactions of surgery for the benefit, and the sawtooth line has been stopped in the United States.

The risk of postoperative complications of this method of placing hanging steel wire on the surface is quite high. Reported problems include: disconnection and extrusion, skin depression, superficial internal bleeding, mild asymmetry, erythema, edema and persistent pain.

In addition to the minor complications mentioned above, there are cases of salivary gland cyst and chronic inflammatory reaction of Stenson's tube. After the failure of conservative treatment, the patient asked for the removal of the implanted suspension wire through skin lift surgery because the implanted suspension wire could not be easily removed.

Intraoperative and histological study of soft tissue around the thread-hanging confirmed the difficulty in taking out the thread-hanging: severe scar was observed during the operation, and fibrous shell was found at the edge by pathology. That is to say, in the case of unsatisfactory effect or complications, it is not easy to take out the implanted messenger wire. But in fact, the replacement or replacement of messenger wire is quite common; Research shows that the probability of revision of suspended steel wire after operation is as high as 20%.

It is worth noting that up to now, most of the research on the lifting effect of messenger wire is unscientific. In fact, the cosmetic effect of hanging wire lifting is very small, which is far from the "curative effect lasts for 3-7 years" declared by manufacturers and institutions.