**Core Concept**
Compound fractures, also known as open fractures, are severe injuries where a bone breaks through the skin, exposing the wound to external contaminants. Effective treatment of compound fractures requires a multidisciplinary approach, involving orthopedic surgery, infectious disease, and trauma care. The primary goals of treatment are to stabilize the fracture, prevent infection, and promote healing.

**Why the Correct Answer is Right**
The treatment of compound fractures involves several key principles, including **debridement** (removal of dead tissue and contaminants), **antibiotic administration**, and **immobilization** of the affected limb. Debridement is crucial in preventing infection and promoting wound healing. Antibiotics are used to prevent infection and control bacterial growth. Immobilization helps stabilize the fracture and reduces the risk of further injury.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it does not specify the treatment principle. Compound fractures are a type of injury, not a treatment principle.
* **Option B:** This option is incorrect because it does not accurately describe a treatment principle. While antibiotics are used in the treatment of compound fractures, the term "antibiotic therapy" is too broad and does not convey the specific treatment goals.
* **Option C:** This option is incorrect because it is a treatment principle, but not the most relevant one in the context of compound fractures. While pain management is an important aspect of trauma care, it is not a primary treatment principle for compound fractures.

**Clinical Pearl / High-Yield Fact**
When treating compound fractures, it is essential to remember the **"open fracture classification"**, which helps predict the risk of infection and guides treatment decisions. The classification system, developed by Gustilo and Anderson, categorizes open fractures into three types (I, II, and III) based on the severity of the injury and the presence of soft tissue damage.

**Correct Answer: D.**