**Core Concept**
The management of contaminated wounds involves preventing infection and promoting wound healing. This requires a thorough understanding of wound classification, antimicrobial therapy, and surgical techniques to minimize the risk of infection and promote tissue repair.

**Why the Correct Answer is Right**
The treatment of contaminated wounds typically involves a combination of surgical debridement, antimicrobial therapy, and wound care. Debridement involves the removal of dead tissue, foreign material, and bacteria to create a clean wound bed. Antimicrobial therapy, such as antibiotics, may be necessary to prevent or treat infection. In the case of a contaminated wound on the leg, surgical debridement and antimicrobial therapy are essential to prevent infection and promote wound healing.

**Why Each Wrong Option is Incorrect**
**Option A:** This option may be tempting, but it is incorrect because simply closing the wound without debridement and antimicrobial therapy can lead to infection and poor wound healing.
**Option B:** This option is incorrect because topical antibiotics alone may not be sufficient to prevent infection in a contaminated wound.
**Option C:** This option is incorrect because it does not address the need for surgical debridement and antimicrobial therapy in the treatment of contaminated wounds.

**Clinical Pearl / High-Yield Fact**
When managing contaminated wounds, it is essential to remember that debridement and antimicrobial therapy are crucial to prevent infection and promote wound healing. The use of topical antibiotics may be helpful, but it should not replace surgical debridement and systemic antimicrobial therapy.

**Correct Answer: A. Surgical debridement and antimicrobial therapy.**