TRAM (Transverse Rectus Myocutaneous) Flap Reconstruction allows the patient to use excess tissue from the abdomen to reconstruct the breast or breasts. The fat and skin overlying the rectus muscle is carried to correct the defect left following a mastectomy.
Ideal candidates are healthy, have adequate abdominal tissue and have realistic expectations of the outcomes. Contraindications are significant abdominal scarring from previous procedures, smoking, obesity, diabetes, and severe cardiac or pulmonary disease.
A hip to hip incision is made to elevate the flap like someone undergoing a tummy tuck only this tissue is utilized and not discarded. The remaining soft tissue above the harvested flap is released and the incision is reapproximated. The umbilicus or belly button is preserved and is brought back out to the surface and stabilized.
In a Pedicle TRAM, the blood vessels supplying the tissue are left intact and the entire abdominal flap is tunneled into the pocket left by the mastectomy and reshaped to form a new breast. Pedicle flaps are an ideal option for patients who have had radiation damage or some other type of problem with the vessels used for reanastomosis for a Free TRAM.
A Free TRAM requires micro vascular reanastomosis (reattaching of blood vessels under the microscope) of the vessels from the abdominal flap to a blood supply in the chest (usually the internal mammary vessels along the sternum of the thoracodorsal vessels in the axilla). Advantages of the free TRAM verses a pedicle TRAM are decreased risk of abdominal hernia or bulge and a lower incidence of fat necrosis. Success rates for the free TRAM are 97-98%.
Complications related to TRAM flaps are low but include the following: total or partial flap loss, fat necrosis (hard areas in flap due to poor fat healing), inadequate abdominal wound healing, hernia, abdominal bulge, infection and hematoma (blood accumulation).
Patients generally stay 3-5 days in the hospital following the procedure. Patients are given a combination of narcotics, muscle relaxants, antibiotics and a detailed instruction sheet on discharge. Office visits take place one week following hospital discharge and at 6 weeks following surgery. Full recovery is 6 weeks. Patients are to avoid heavy lifting and strenuous activity during this time. Scars continue to fade and improve up to a year after surgery. After the patient is well-healed, outpatient surgery is planned for revision (shaping) of the flap and nipple reconstruction. Tattooing is performed in the office under local anesthesia once the new nipple is healed. A delay in this timeline may occur with chemotherapy, radiation therapy, poor or delayed wound healing or infection. |