Volume Change of Pedicled Latissimus Dorsi Muscle Flap after Partial Breast Reconstruction

J reconstr Microsurg
DOI: 10.1055/s-0038-1667176

Introduction Despite successful breast reconstruction with oversized latissimus dorsi muscle flap after breast-conserving surgery for breast cancer, esthetic problems continue to exist due to flap shrinkage. The purpose of this study was to evaluate the objective volume change of pedicled latissimus dorsi muscle flap when it is used in breast reconstruction. Methods Patients who were diagnosed with breast cancer and underwent a breast-conserving surgery with immediate breast reconstruction with pedicled latissimus dorsi myocutaneous flap between October 2009 and November 2015 were studied. Eleven patients who were followed up for more than 1 year after operation were included in the study. We evaluated the volume of muscle portion of the latissimus dorsi myocutaneous flap with computed tomography (CT) scan. We analyzed the rate of volume change of the latissimus dorsi muscle every year until 5 years after the operation. Result The latissimus dorsi muscle flaps of all 11 patients showed a volume decrease over time. The rate of volume change of the latissimus dorsi muscle flaps decreased 8.04% in the first year, 6.36% in the second year, 5.05% in the third year, 2.88% in the fourth year, and 2.56% in the fifth year after operation in average. Conclusion This research shows the possibility of objectively evaluating the volume change of pedicled latissimus dorsi muscle flaps after breast reconstruction. The findings will be helpful in designing the size of the flaps to use on defects after breast-conserving surgery.
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