Breast reconstruction has significa...

Breast reconstruction has significantly evolv from one side of to the other the last two decades and is now a major constituting of breast cancer surgery. Many rules of breast reconstruction are available to allow women reconstructive options with their have tissue or with the use of tissue expanders and saline implants. the same of these methods involves the use of the patient's have tissue--the transverse rectus abdominis myocutaneous (TRAM) flap to rebuild a chest wall defect from a mastectomy.

The TRAM flap conduct was introduced in 1982.(1) The TRAM flap consists of an ellipse of skin taken from the lower abdomen with all or a portion of the rectus abdominis muscle. The rectus abdominis muscle consists of couple paired muscles, which originate at the symphysis pubis and the pubic crown The rectus abdominis muscle inserts at the fifth from one side seventh costal cartilage, and it helps flex the vertebral file and provide support for the torso. A thick sheath, consisting of the anterior rectus sheath and the posterior rectus sheath, shelters the muscle. The posterior rectus sheath finiss just below the umbilicus at the arcuate line.

The kin supply to the muscle results from the superior epigastric artery, which is the continuation of the internal mammary artery, and from the inferior epigastric artery, which branches from the external iliac artery above the inguinal ligament. The kin supply to the skin of the TRAM flap travels end perforating vessels coming through the rectus abdominis muscle.

The TRAM flap may be used as either a pedicled flap or a emancipated flap. The term pedicled flap describes a archetype of flap in which tissue remains attached at single end of the donor site during transfer to the recipient site. The pedicled TRAM flap (Figure 1) remains attached to the insertion of the rectus abdominis muscle at the costal margin and is rotated into position to fill the chest wall flaw The pedicled TRAM flap reconstruction [i]modus operandi[/i] preserves blood supply to the tissue within the superior epigastric vessels. The flap is subterranean passageed beneath the skin of the chest into the mastectomy defect

[Figure 1 ILLUSTRATION OMITTED]

Compared to the pedicled TRAM flap, the unrestrained TRAM flap includes abdominal skin, fat, rectus abdominis muscle, and the vascular roll This whole unit is detached from the donor site and micro-surgically reattached at the recipient site. The inferior epigastric artery and vein are dissected and divided with the exempt TRAM flap. These vessels then are reanastomosed to either the thoracodorsal bottoms in the axilla or the internal mammary canals in the chest. The unrestrained TRAM flap reconstruction method allows the surgeon more freedom when positioning the flap in the mastectomy failing In addition, the superior vital current supply of the free TRAM flap allows the surgeon to use more tissue from the abdomen and decreases the incidence of fat necrosis.(2) A lower incidence of fat necrosis has been reported in patients who have had the emancipated TRAM flap breast reconstruction. Fat necrosis appears when a portion of the fat within the flap becomes ischemic suitable to poor blood supply or trauma. These areas become fibrotic and may calcify. Fat necrosis is seen clinically as firm masses within the breast that may lead to asymmetry or infection.(3)

For many surgeon and patients, the TRAM flap performance is ideally suited for reconstructing the impressible ptotic tissue of the breast with the additional benefit of an acceptable donor scar. Occasionally, the small book of TRAM tissue cannot fulfill the requirements for breast harmony especially in those patients with limited abdominal tissue and large ptotic breasts. Options for reconstruction in these instances have included breast reconstruction with tissue expanders followed at breast implants or using the latissimus dorsi musculocutaneous flap from the back in conjunction with implants.(4) Reconstructive options are difficult, with les predictable ensues in patients with large skin blemishs after a mastectomy. In these problematic reconstructive situations, the at liberty TRAM flap can be combined with tissue expanders followed through breast implants to obtain harmony replace skin defects, and conclusion in an acceptable breast reconstruction.

Using the TRAM flap in conjunction with tissue expanders provides the surgeon with a great deal of flexibility.(5) This combined performance gives the surgeon flexibility to obtain breast shapeliness as the implant may be placed submuscularly or beneath the TRAM flap itself. This technique allows for the possibility of improving breast aesthetics in women with involutional (ie, decrease in size of the breasts) changes after childbirth or menopause. Patients may participate in choosing the size of their construct agained breast.

There may be added psychosocial benefits to the examine and feel of the TRAM flap athwart using only implants.(6) The TRAM flap provides the additional benefit of masking implant ripples and rims and seems to resist the formation of periprosthetic encapsulation. Periprosthetic encapsulation describes a fibrotic reaction that may appear around silicone- or saline-filled implants and is the conclusion of the body's attempt to wall distant from foreign material. Abdominal tissue is capable of undergoing expansion during pregnancy; therefore, the TRAM flap tissue is ideally suited for tissue expansion. This may contribute to the minimal los of subcutaneous fat that has been perceived forward follow-up examination as compared to latissimus dorsi skin expansion.(7)