Autologous fat filling principle
After autologous fat filling, there is a stable period of three months to half a year. At this time, the swelling and cyanosis of the surface skin will gradually disappear and the effect will begin to appear. With the growth of age, facial skin cells age, resulting in thinning of cuticle, atrophy of skin tissue, loss of skin support, and then subcutaneous wrinkles, making people look haggard. In recent years, with the development of clinical autologous fat filling technology, there are more and more reports about the success of autologous fat filling. However, according to the current statistics, 97.24% of the patients in this case had no postoperative complications such as liquefaction, necrosis and cystic degeneration. In practice, there are many forms of people filled with autologous fat, and there are different methods to obtain and screen fat technically, which is relatively safe and acceptable.
Selection principle of filling and liposuction parts
According to anatomy and current research, most scholars believe that subcutaneous fat in abdomen, buttocks and inner thighs can be divided into two layers: the shallow layer is halo layer, and fat particles are sparse and scattered, which is difficult to extract; The deep layer is a fat-dense layer. There is no lamella under the skin in other parts. Therefore, the above-mentioned parts are rich in subcutaneous fat, and it is easier to collect fat than other parts of the human body, which can basically meet various fat filling needs. Compared with the three, the fat in the inner and outer thigh layer is the best. Because these fat particles are small, the contact area with host cells can be increased after injection, which is convenient for Utikka and Wellcome factors to actively transport human-like peptides for nutritional infiltration, and blood vessels are easy to grow and establish a good blood supply. Through the author's long-term experience, it is considered that the fat in the upper buttock is ideal in the surgical practice of filling the upper eyelid depression with autologous fat. Almost all beauty seekers have the richest subcutaneous fat and the thickest fat layer in the upper buttock area. Therefore, this part of fat is easy to extract, and the extracted mixed solution has high purity, small liposuction area and low damage degree.
Filling environment requirements
① Strict aseptic operation: infection can lead to the failure of filling autologous fat particles, aggravate concave deformity and form induration, so aseptic operation is very important; ② Extraction of fat particles with low negative pressure syringe: 1999, Amar put forward the theory of micro-penetration of fat cells. After liposuction with syringe, granulosa cells were purified and then implanted into autologous adipose tissue through microcatheter. The clinical results show that the effect is good and the complications are few. When collecting granular fat, it is necessary to use a manual syringe to suck it under low negative pressure, and sodium bicarbonate is not added in the swelling solution to prevent the fat granule cells from destroying saponification and leading to the decrease of activity; 18 or 20 porous liposuction needle should be used when liposuction particles are used to reduce the damage to fat cells; ③ Reasonable choice of fat donor area: For facial depression deformity, fat particles are less likely to survive, and thigh fat, especially the back of thigh, is preferred. The saturated amount of fat swelling solution injected in this part is less, and the number of fat cells per unit volume is more. The lipoprotein lipase activity in this part is higher than that in other parts. Survival after transplantation is good, the demand for fat particles is large, and thigh fat is limited. Besides thighs, waist, abdomen and buttocks should be selected, and liposuction surgery should be performed at the same time. ④ Purification of fat particles: As a material for facial soft tissue depression and breast filling, it should be completely autologous fat particles, which should be purified before transplantation. Was 1 }-3 times with physiological saline contain gentamicin to remove mixed blood, swelling fluid, broken fat cells and fibrous tissue in that fat solution, and stan for 20min to remove the saline below the fat particles, so that the fat particles do not contain adrenaline and become pure yellow concentrated solution, thereby further improving the survival rate after fat transplantation and reducing fat absorption; ⑤ The key to the success of fat granule transplantation is to ensure the maximum contact between the transplanted fat granule and the recipient tissue.
Cell survival theory
The reason is that after autologous fat cells are filled in the body, biological characteristics similar to those of BMSC will change, that is, they will self-differentiate into various cells needed to repair tissues during wound healing, thus increasing local vascularization and effectively promoting the proliferation of keratinocytes and fibroblasts; On the other hand, autologous adipose-derived stem cells can secrete human-like peptide components such as vascular endothelial growth factor (VEGF) and stem cell growth factor (HGF) in cell active components rousselct and Ocean Sweet f40, which can promote tissue regeneration and healing.
Tips
After making up, there will be some time to recover. At this time, you will feel a little fat, but this is the recovery period of your body after making up, and you can't be sure whether it is really fat. This is an expansion phenomenon. Each of us is a huge scientific system. After being hurt by the outside world, you will have a sense of self-protection. This is his protection for himself and can't be understood as being fat. For example, if you drink too much water before going to bed the day before, you will have edema the next day, but you are not fat, right? Therefore, you are still beautiful, help your body recover, store elastin and collagen tripeptide nutrition, take good care of it, and you will feel more and more beautiful.
Burjun