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To discover the utility of pedicled latissimus dorsi kiss flap for the reconstruction of chest wall defect after mastectomy. This study was a systemic analysis of 12 female patients with breast tumors who were treated at Affiliated Hospital of Guangdong Medical University from January 2018 to December 2019. Among them, three patients had malignant lobular breast tumors, and nine patients had locally advanced breast cancer. After extensive resection of the primary tumor, the chest wall skin, and soft tissue, a large defect was left in the chest wall of each patient. Based on the design and structure of the kiss flap, two semicircular flaps of equal diameter were designed in the latissimus dorsi region, and their blood supply was retained from the same vascular trunk. Two flaps were transferred to the chest wall through a subcutaneous tunnel, and the incision in the donor area was sutured directly. Finally, two equal semicircle flaps were adjusted to fit the defect and then fixed on the chest wall. Referred to the design of the kiss flap, the area of the latissimus dorsi was increased to cover a larger chest wall defect. We have used this flap to reconstruct chest wall defects on twelve patients. Their age ranged from 24 to 62. The largest defect was 20 × 12 cm, and the smallest defect was 15 × 10 cm in diameter. Postoperative follow-up time was 5–9 months (mean time: 6.2 months): Follow-up observations demonstrated that all the flaps were healed well without edema or extravasation and donor area of all cases was closed well. In addition, no local recurrence or distant metastasis was observed in all patients.

Pedicled Latissimus Dorsi Kiss Flap for the Reconstruction of Large Chest Wall Defect After Mastectomy