What does a purse-string suture technique do?

The purse-string suture technique is specifically designed to gather the edges of tissue together, creating a tight closure that pulls the edges inward like a drawstring. This technique is commonly utilized in various surgical procedures, particularly in closing circular wounds or defects such as in the bowel or skin. The resulting effect of the purse-string suture is that it reduces the diameter of the opening, effectively securing the tissue edges without leaving excess loose skin or tissue that could complicate healing or result in gaps.

The other options do not accurately describe the purse-string suture technique. The option regarding a type of suture material does not pertain to the technique itself but rather to materials designated for surgical use. The mention of a deep connective tissue layer refers to anatomical structures and their functions rather than a suture technique. Lastly, individual stitches across wound edges suggest a different, more conventional suturing method rather than the gathering mechanism employed by the purse-string approach. This distinction is crucial in understanding the specific applications and advantages of the purse-string technique in surgical settings.