๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Step 4: Extraction and fat harvesting
Step 4: Extraction and fat harvesting
Traditional extraction of fat is through hand cannulas and power-assisted devices. In an HDBC procedure, bulk reduction is typically performed with back-and-forth (front and back) devices (e.g., MicroAire), followed by superficial reduction/etching using a rotary (side-to-side) device. Hand cannulas are used for every superficial contouring and shadowing, specifically over the anterior superior iliac spine (hip definition), tendinous insertions of the abdominals (six-pack etching), inferior to the nipple/chest, and shoulder/bicep defining. Performing hand etching requires meticulous skill to avoid seromas and severe irregularities that are extremely difficult to repair. Fat extracted is used for transferring to complete the HDBC procedure. In women, common areas of treatment include the breasts and buttocks; in men, common areas are the chests, shoulders, buttock, and calves. It may seem contradictory to remove fat for reduction but then reinsert the fat to a similar area, as is done in chest defining. However, to obtain definition and permanent reshaping of a certain area such as the chest in a male, you must remove all the fat (and glandular tissue) completely so the area is completely regular and flat, and only then rebuild the structure with fat to the muscle. Similarly, in women, when performing gluteal augmentation, you may liposuction part of the lower back and lateral thighs to reduce bulk fat but then reimplant fat to the upper, middle, and lateral poles of the buttock to give projection and create a more โS-curveโ shape of the hips/thighs (Fig. 60-10). These body shape changes cannot be done without following this step-by-step approach and incorporating fat grafting.
Figure 60-10. Female high definition body contouring/buttock defining. Before (left) and after (right) high definition body contouring of the circumferential torso, arms, and inner thighs, with fat grafting to the buttocks. Notice the curve of the lower back, Venus dimple (lower back dimples) definition, mid and lateral buttock projection with a more โScurveโ of the hips, giving her a more harmonious and beautiful shape.