Dear Editor,
Thread lift is known to be a minimally invasive procedure for facial rejuvenation. Barbed absorbable threads become the mainstream of thread lift, including cog threads and cone threads. The efficacy of thread lift depends on three factors: fixation point, vector, and exit point. The main target layer of threads is subcutaneous layer. How to design thread numbers, positions, depth, and vector is an art. We report three patients with complications of thread lift about dimpling and thread extrusion. We treated skin dimpling with manual therapy and subcision, and removed thread when thread extrusion occurred.
The satisfaction level of thread lift from patients and surgeons increased over time. Recent research results show that thread lift for facial rejuvenation was safe, effective, and has fewer complications. 1 Initial use of nonabsorbable threads produced side effects and had a frequent complication and revision rate. Newer published methods using absorbable sutures have shown safer and more effective. 2 The complications of silhouette thread included temporal pain, visible dermal pinching, hematoma, asymmetry, and suture palpability. 3 The complications of polydioxanone (PDO) thread included dimpling, bruise, asymmetry, thread extrusion, and malar eminence accentuation. 4
Case 1: A 29‐year‐old woman presented to our department with thread extrusion on left face for 1 week after she went abroad for thread lift with unknown threads. We found that these barbed threads was too thick to be absorbed. We removed the threads in the direction opposite that of placement (Figures 1 and 2).
Case 2: A 40‐year‐old woman accepted barbed thread lift and had skin dimpling. These depressions were caused by the cogs of threads. The cogs were not strong. Manual therapy was applied on her face to release the tension of cog threads in the direction opposite that of placement (Figures 3 and 4).
Case 3: A 39‐year‐old woman accepted barbed thread lift. Anchoring method of the exit point of thread was applied to her face and resulted in the severe skin dimpling on her left face. The dimpling was due to dermis hooked by thread anchor and manual therapy was in vain. We treated the skin dimpling by 18‐G needle subcision (Figure 5). After three times therapies in 3 months, the threaded areas returned to normal skin appearance.
FIGURE 1.
Thread extrusion on left face
FIGURE 2.
Treat thread extrusion by removing the thread
FIGURE 3.
Skin dimpling after thread lift
FIGURE 4.
Manual therapy release the tension of cog threads in the direction opposite that of placement
FIGURE 5.
Treat the skin dimpling by 18‐G needle subcision
Treatments of complications of thread lift are highly valued. Suture removal is necessary when displacement of the barbed threads happen. Bertossi et al advised the patient to massage the thread three times a day for 6 days, and the threads subsequently were extracted by the surgeon in the direction opposite that of placement. Mild skin dimpling, erythema, infection, and temporary facial stiffness that happened occasionally. 5
Lee et al published a study about PDO thread for Asians. The complications included swelling, bruising, skin dimpling, and asymmetry. 6 Sarigul Guduk and Karaca published a study about 148 patients. The most common complication was skin dimpling and irregularity. The other complications were ecchymosis, suture extrusion, pain, hematoma, infection, and suture migration. 7 Guida et al published a study about poly‐l‐lactic acid traction thread treatment for mild‐moderate degree of skin laxity of jawline and neck angle. The complications included edema, swelling, temporary skin contour irregularities, and paresthesia. 8 Archer and Garcia published a study about silhouette instalift thread. The complications includes minor pain, swelling, rippling, dimpling, bruising, bleeding at the entry or exit sites, edema, asymmetry, dysesthesia, skin irregularities, and inflammatory reactions. 9
In these three cases, Case 3 had the severe dimpling complication. The anchor of the thread hooked the dermis too tight. We used 18‐G needle to cut the thread in the dermis. During subcision, a needle cut these thread thereby releasing the tension of the dermis, allowing the skin to rise. Other than dimpling, prevention of severe complications is very important. Doctors should avoid injuring the superficial temporal artery, zygomatico‐orbital artery, transverse facial artery, facial nerve, and parotid duct.
CONFLICT OF INTEREST
The authors declare no potential conflict of interest.
REFERENCES
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