Final answer:
A repair of a laceration that includes retention sutures is considered a complex closure in CPT, as it aids in the primary union condition of healing. This technique is used to promote faster and more efficient healing, as well as reduce the risk of scarring.
Step-by-step explanation:
According to CPT (Current Procedural Terminology), a repair of a laceration that includes retention sutures would be considered to be a complex closure. Retention sutures play a crucial role in facilitating the primary union condition of a wound, where the wound edges are close enough to be brought together and fastened, allowing for quicker and more thorough healing. This surgical method helps in ensuring the edges of the wound are held in close approximation to avoid the formation of a disfiguring scar and encourage proper healing.
A primary union allows for the restoration of the skin's integrity without significant scarring. In more severe cases, where there is a gaping wound, healing takes longer and might necessitate a secondary union, which involves wound contraction and more extensive tissue repair. However, the use of retention sutures aims to promote healing by primary intention, even when the depth or location of the wound makes it challenging.