ObjectiveThis study aims to report the use of the unilateral pectoralis major muscle
flap for the treatment of the sternal wound dehiscence.MethodsA retrospective study including patients who underwent unilateral pectoralis
major muscle flap was performed for the treatment of sternotomy dehiscence
due to coronary artery bypass, valve replacement, congenital heart disease
correction and mediastinitis, between 1997 and 2016. Data from the
epidemiological profile of patients, length of hospital stay, postoperative
complications and mortality rate were obtained.ResultsDuring this period, 11 patients had their dehiscence of sternotomy treated by
unilateral pectoralis major muscle flap. The patients had a mean age of 54.7
years, the mean hospital stay after flap reconstruction was 17.9 days (from
7 to 52 days). In two patients, it was necessary to harvest a flap from the
rectus abdominis fascia, in association with the pectoralis major muscle
flap, to facilitate the closure of the distal wound. In the postoperative
period, seroma discharge from the surgical wound was observed in six
patients, five reported intense pain (temporary), three had partial
cutaneous dehiscence, and two presented granuloma of the incision.ConclusionThe complex wound from sternotomy dehiscences presents itself as a challenge
to surgical teams. Treatment should include debridement of necrotic tissue
and preferably coverage with well-vascularized tissue. We propose that the
unilateral pectoralis major muscle flap is an interesting and low morbidity
option for the reconstruction of sternal wound dehiscences, with proper
sternum stability and satisfactory functional and aesthetic outcomes.