What type of wound heals by edges approximating with a suture?
A.
Secondary intention.
B.
Remodeling phase.
C.
Primary intention.
D.
Tertiary intention.
The Correct Answer and Explanation is:
The correct answer is:
C. Primary intention.
Explanation:
Primary intention is a type of wound healing in which the edges of a wound are brought together and approximated with the help of sutures, staples, or adhesive strips. This method is typically used for clean, surgical wounds with minimal tissue loss. The primary goal is to align the wound edges as closely as possible to facilitate healing with minimal scarring and to reduce the risk of infection.
Key characteristics of primary intention healing include:
- Wound Edges Closely Approximate: In primary intention, the edges of the wound are directly aligned and held together by sutures or other closure methods. This close approximation allows for minimal granulation tissue formation and results in faster healing.
- Minimal Scarring: Because the wound edges are neatly aligned, the process of epithelialization (the formation of new epithelial tissue) is more efficient, leading to minimal scarring compared to other types of wound healing.
- Rapid Healing: Wounds that heal by primary intention typically heal more quickly than those that heal by secondary or tertiary intention. This is due to the reduced distance the cells need to migrate to close the wound.
- Low Risk of Infection: The closure of the wound with sutures or staples helps to protect the wound from external contaminants, thereby reducing the risk of infection.
Other types of wound healing:
- Secondary intention involves wounds where the edges cannot be easily approximated, leading to a longer healing process as the wound fills with granulation tissue and epithelial cells from the edges inward.
- Tertiary intention (or delayed primary closure) is used for wounds that are initially left open due to contamination or other factors and are closed later once the risk of infection has decreased and the wound bed is healthy.
In summary, primary intention is used for wounds with clean edges that are directly approximated and sutured, leading to a more straightforward and faster healing process.