True regarding wound dehiscence:
**Core Concept**
Wound dehiscence refers to the partial or complete separation of a surgical wound, often resulting from inadequate wound closure, infection, or mechanical stress. This condition can lead to significant morbidity, including infection, hematoma, and further complications.
**Why the Correct Answer is Right**
Wound dehiscence typically occurs due to a combination of factors, including inadequate wound closure techniques, excessive tension on the wound, and underlying medical conditions such as malnutrition, diabetes, or immunosuppression. The most common cause of wound dehiscence is a suture line infection, which can lead to the breakdown of the wound closure. In addition, wounds under excessive tension are more prone to dehiscence, as the sutures or staples may not be able to withstand the mechanical stress.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as wound dehiscence is not typically caused by a single factor such as a "suture line hematoma." While a hematoma can contribute to wound dehiscence, it is usually a secondary complication of other factors such as infection or excessive tension.
**Option B:** This option is incorrect as wound dehiscence is not primarily caused by "excessive wound tension." While excessive tension can contribute to wound dehiscence, it is not the primary cause. Wound dehiscence is often a multifactorial process.
**Option C:** This option is incorrect as wound dehiscence is not typically caused by "inadequate wound closure techniques." While inadequate wound closure techniques can contribute to wound dehiscence, it is usually a result of other factors such as infection or excessive tension.
**Clinical Pearl / High-Yield Fact**
A key factor in preventing wound dehiscence is ensuring adequate wound closure techniques, including the use of layered closure and appropriate suture material. Additionally, maintaining a clean and sterile wound environment can help reduce the risk of infection, a major contributor to wound dehiscence.
**Correct Answer:** D