What is the function of a stay suture?

A stay suture is primarily used to hold back or stabilize a structure during surgery, ensuring that the surgical site remains accessible. The correct answer identifies that a stay suture does not pass through subcutaneous tissue, which is an important aspect of its function. By anchoring directly to the underlying structures, the stay suture helps to maintain tension and position without compromising the integrity and healing of the overlying tissues.

This approach minimizes the potential for tissue irritation and promotes better exposure for the surgeon while allowing for more precise manipulation of tissues. Stay sutures facilitate the handling of heavier tissues, such as muscle or fascial layers, without affecting the more delicate structures above them. Understanding this function can aid in recognizing the importance of proper suture placement in surgical procedures.