• Evan Woo, Bien-Keem Tan, and Chong-Hee Lim.
• Department of Plastic Surgery, Singapore General Hospital, Singapore.
• Ann Plast Surg. 2009 Aug 1; 63 (2): 188-92.

AbstractPleural space problems after lung resection and persistent air leaks are among the commonest challenges posed to thoracic surgeons. Surgical repair of air leaks are indicated when conventional tube thoracostomy has failed to solve the problem. We would like to propose the novel application of the combined latissimus dorsi-serratus anterior transposition flap for selected cases of air leaks that are recalcitrant to conventional treatment. We discuss its indications and the surgical technique. Five patients underwent the procedure between 2004 and 2007. They were male patients aged between 32 and 70 years. Four patients had alveolar-pleural fistulas resulting in persistent air leaks while the fifth patient had, in addition, a space problem following lung volume reduction surgery. All patients had prolonged treatment with chest drains without success. With the patient in a lateral decubitus position, a lazy-S incision was used to expose the entire latissimus dorsi and the proximal slips of the serratus anterior muscles. They were raised as pedicled flaps and transferred in tandem. The latissimus dorsi was introduced into the pleural cavity via a thoracic window and used to reinforce the fistula repair. The serratus anterior muscle closed the rib window. In all cases, the lungs reexpanded and chest drains were removed within 5 days post surgery. There were no recurrent air leaks at 1-year follow-up with all patients. Conservative treatment in all our patients was unsuccessful. The dual flap technique has the advantage of allowing normal ventilation while providing a seal over the alveolar-pleural fistula. The muscle bulk of the latissimus dorsi fills the pleural dead space and the serratus anterior muscle seals the axilla preventing subcutaneous emphysema. There was minimal morbidity associated with the use of this dual muscle flap technique. This technique is an effective treatment option for recalcitrant air leaks.

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