Use of muscle flaps in the treatment of infected sternotomy

Deep wound infection after open-heart surgery remains a major problem. In this paper potential indications and techniques for use of muscle flaps in the treatment of chronic sternal infections are discussed and the authors' early experience with such treatment is presented. A well vascularized muscle flap fills out the defect, may help to control infection, and accelerates healing. After adequate excision of infected tissue, bone and cartilage, the resulting defect is covered with a muscle flap immediately or after a period of open treatment. Coverage with a flap of pectoralis major muscle was used in five patients 3 weeks to 6 months after cardiac surgery. Primary healing occurred in two patients, secondary healing in one and healing with residual fistula in one patient. In the fifth case there was uneventful recovery with primary healing until death occurred from cerebral haemorrhage after 3 weeks. Use of muscle flaps seems to be a valuable complement in the management of severe sternotomy infections.