From flat ass to peach hip, hip augmentation surgery originally did this

The pursuit of breasts and fat buttocks is not only a trend in European and American countries.

But different people's perceptions of hip aesthetics are very different: Hispanics may want the inner and outer sides of the buttocks to be plump, and African-Americans will expect larger hips, thinking that this plump hip curve should continue to the outer thighs . Asians generally agree with a well-rounded buttock.

Synthesizing the aesthetic differences and the anatomical characteristics of the hips, the plastic surgery community has proposed the widely recognized aesthetic parameters of female hips based on the ever-changing public aesthetic trends.

back:

1. The curve on the outside of the middle of the buttocks is smooth and full, without depression.

2. Hip folds: inclined from the inside to the outside, forming a diamond-shaped gap between the hips and the two thighs.

3. V-shaped area: Above the gluteal groove, the inner side of the buttocks and the intercondylar space form a V-shaped area, which reflects the clearly defined hip muscles.

side:

1. A smooth S-shaped curve descends from the lumbosacral region. The most prominent point of the hip is at the level of the sacrum.

2. Hip protrusion reached 2: 1, which is the distance from the highest point of the hip to the greater trochanter of the femur divided by the distance from the greater trochanter to the highest point of the pubic symphysis equal to 2: 1.

3. Waist / hip circumference is the waist-hip ratio close to 0.7.

The most prominent point of the hip and the level of the sacrum

Hip protrusion reached 2: 1 (AC = 2AB), A femoral trochanter B pubic symphysis highest point C hip highest

                 Two methods of hip augmentation

After proposing aesthetic standards, the orthopaedic surgeon came to the idea of ​​using technology to modify a person's buttocks.

Hip augmentation can be accomplished by implanting a prosthesis. It is not exactly the same as breast augmentation. The material of the prosthetic hip augmentation is silicone rubber or silicone gel. In order to make the buttocks appear fuller, the placement of the implant is very important.

After the prosthesis is implanted in the human body, normal human tissue will form an envelope around the prosthesis. If the implant is implanted under the skin, the capsule will harden and contract, the implant will shift, and the hip will look like a mushroom. Implantation of the prosthesis deep into the muscles can compress and damage the sciatic nerve.

Therefore, implants are now chosen between the muscles of the buttocks. In this way, there is still a muscle with a thickness of about 3 cm deep in the prosthesis to protect the sciatic nerve. There is also a muscle cover of 2 to 3 cm outside the prosthesis, which can ensure the natural shape of the buttocks and the real touch to the touch.

However, most hip plastic surgery uses autogranular fat grafting. By sucking fat from the waist and abdomen, and then injecting it into the buttocks, the fat distribution of the waist and hips is changed to modify the buttocks. During the injection, fat will be injected into the subcutaneous tissue of the buttocks and the superficial layer of the gluteus maximus muscle, which can ensure the uniform distribution of fat.

Because extracting fat will destroy part of the fat cells, in order to improve the survival rate of the fat cells, the plastic surgeon will pay attention to avoid excessive negative pressure, and then centrifuge to isolate the fat cells. Despite this, almost a third of the fat cells are still damaged. Therefore, more fat is sucked in the waist and abdomen than injected into the buttocks [1]. Calculating at this ratio, if 600 to 1000 ml of fat cells are needed on one hip, then 1800 to 3000 ml of fat particles are prepared by aspiration. Regarding the "false width" often mentioned, it can also be modified and adjusted by redistributing fat at the same time as autogranular fat transplantation.

Fat stem cell transplantation is one of the current research hotspots and a hot-selling project for many beauty institutions. However, the ability of adipose stem cells to regenerate and differentiate is limited. At present, the ability of adipose stem cells is mainly angiogenic. Therefore, this technique is still immature, and the effect of hip augmentation needs to be further explored.

                  Want Hips? Be careful of complications

Despite advances in medical technology, implants of prostheses or autologous fat particles for hip augmentation have a variety of complications. For example: because the surgical area is close to the anus, the risk of surgical infection will increase; fluid accumulation and hematoma may occur after extensive liposuction; nerve damage is rare in hip augmentation surgery, but the consequences may be very serious: varying degrees of sciatic nerve The injury can cause local pain, numbness and even paralysis of the lower limbs.

Therefore, when performing buttock augmentation surgery, not only plastic surgeons must make various efforts to improve the safety of the operation: strict aseptic operation, drainage and compression bandaging in areas prone to subcutaneous hematoma, and carefully between muscles The capsular cavity required to form the implanted prosthesis is peeled off to reduce the risk of nerve injury. People who want to perform hip augmentation surgery need to be prepared to understand the risks of the operation, and they should communicate with the doctor carefully before making a decision.