Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

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What is a myocutaneous flap?

A type of skin graft without muscle
A full tissue flap including muscle with blood supply
A composite graft made of skin and cartilage
A temporary dressing applied to large wounds

The correct answer is: A full tissue flap including muscle with blood supply

A myocutaneous flap is characterized by being a full tissue flap that includes both muscle and skin, along with its own blood supply. This type of flap is particularly beneficial in reconstructive surgery because it provides not only the necessary tissue for coverage and healing of defects but also ensures that the tissue remains viable due to its vascular supply. The inclusion of muscle in this type of flap allows for additional bulk and potentially improved functional outcomes in areas where tissue loss has occurred, making it a versatile choice in situations where significant tissue reconstruction is needed. This differentiation underlines the effectiveness and application of myocutaneous flaps in surgical practices. In contrast, skin grafts without muscle do not offer the same level of support or blood supply, composite grafts involve additional materials like cartilage which are not present in a myocutaneous flap, and temporary dressings provide no tissue or functional benefits in terms of reconstructive needs. Understanding the specific components and advantages of a myocutaneous flap highlights its essential role in surgical options for tissue reconstruction.