ABSTRACT
Objective:To evaluate the clinical efficacy of microfat on neck wrinkles and its structure and viability.Methods:A retrospective analysis was conducted to review the clinical data of 23 patients with neck wrinkles corrected by microfat injection from June 2018 to June 2021 at the Body Contouring and Fat Grafting Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences, aged (38.1±10.7) years old. A blunt cannula with multiple side holes of 0.8 mm was used to obtain fat particles under low negative pressure and to prepare the microfat by washing and soft centrifugation. A 26-gauge sharp needle was used to inject microfat with small amount and at multiple points into the intradermal and subdermal layer where the neck lines were linearly depressed. Regular follow-ups were carried out after the operation, and the efficacy of the operation was evaluated from routine neck examinations, third-party doctor′s grade scoring and patient′s scoring towards satisfaction. To clarify the structure and viability of microfat, scanning electron microscope was used to observe the structure of fat particles, Calcein-AM/propidium iodide (Calcein-AM/PI) staining to detect tissue viability and Musecell counting to count SVF cells.Results:All of the 23 patients successfully completed the operation without complications such as infection and fat liquefaction. After a follow-up of 3 to 30 months, the neck wrinkles were effectively improved. The postoperative grade scores of third-party doctor was significantly reduced ( P<0.05). And the satisfaction of patients was high, with 20 cases (87.0%) satisfied. Scanning electron microscopy showed that the fat granule cells were tightly arranged and the structure remained intact. Calcein-AM/PI staining showed that most cells in the granules survived. The number of viable SVF cells in fat particles was (9.34±2.68)×10 5/ml. Conclusions:Microfat is easy to obtain with high tissue activity, which is suitable for neck wrinkle filling. Good effects can be achieved with high patients′ satisfaction. It is worthy of clinical application.
ABSTRACT
Objective:To explore the rejuvenation effect of SMAS (Superficial musculoaponeurotic system) multi-vector suspension in the face and neck.Methods:From December 2019 to March 2023, the Plastic Surgery Department of the Plastic Surgery Hospital of the Chinese Academy of Medical Sciences implemented 34 cases of cheek rhytidectomy and 10 cases of cheek andneck rhytidectomy. Following general anaesthesia, liposuction is performed on the cheek and mandibular margins, and incisions are made anterior and posterior to the ear. At the end of the subcutaneous dissection, the SMAS in the region of the parotid gland is separated, and the SMAS is then secured by purse string multi-vector suture suspension. Intheend, excess skin is removed and the incision is reduced in tension.Results:All patients underwent successful surgeries and were satisfied with the postoperative follow-up results. The sagging soft tissues were effectively repositioned, resulting in natural facial and neck lift. There were no serious complications such as facial nerve injury, subcutaneous hematoma, incision infection, or skin flap necrosis.Conclusions:The utilization of MAS multi-vector suspension can significantly improve the relaxation of cheek and neck tissue, with fewer complications and satisfactory rejuvenation effect.
ABSTRACT
BACKGROUND: The neck is not only the first area to show aging but it also represents the persona of the individual. The understanding of the aging process of the neck is essential for neck rejuvenation. The purpose of this study was to evaluate the outcomes and safety of elastic lift in relation to neck region lifting. METHODS: Forty-seven patients with sagging and laxity of the neck skin treated by elastic lift were enrolled in this study from November 2015 to February 2016. To evaluate the safety of elastic lift, a retrospective chart review was conducted. We used an automatic skin diagnosis system to evaluate the efficacy of elastic lift. RESULTS: Forty-five patients were female and 2 patients were male. The mean age of the patients was 45.3 years and their mean follow-up period was 3 months. There were no major complications requiring the removal of the elastic thread during the follow-up period. The median skin laxity grade score was 5 (4-5) preoperatively; the median skin laxity grade score was 3 at 3 months postoperatively. In comparing the skin grade score at these two points in time, there was a statistically significant difference (P < 0.01). CONCLUSIONS: Neck rejuvenation using elastic lift is a safe and effective procedure in selected patients with moderate sagging and laxity of the neck skin.