What is one benefit of a Z-plasty?

• A. Creating a new scar
• B. Lengthening a contracted scar
• C. Reducing redness of the skin
• D. Enhancing blood flow

Answer: (B)

A Z-plasty is a surgical technique primarily used to lengthen a contracted scar while also repositioning it to improve its aesthetic appearance. The procedure involves creating a Z-shaped incision, which allows for the flaps of skin to be rearranged and tension to be redistributed. This not only helps in lengthening the contracted area but also enhances mobility in adjacent tissues, making it particularly beneficial in cases of scar contracture.

Lengthening a contracted scar through Z-plasty can alleviate tension on the surrounding skin, which, in turn, can prevent further contraction and promote better healing. This modification of the scar is crucial in enhancing the overall function and appearance of the area affected by the scar.

The other options do not accurately represent the primary benefit of Z-plasty; for example, creating a new scar is not a goal of the procedure, while reducing redness or enhancing blood flow are not direct effects achieved through this surgical method.