Pott’s fracture is –
**Core Concept**
Pott's fracture refers to a specific type of fracture involving the ankle joint, characterized by a bimalleolar or trimalleolar fracture. This type of fracture involves the **malleoli**, which are the bony prominences on either side of the ankle joint. The **distal fibula** and **distal tibia** are commonly involved.
**Why the Correct Answer is Right**
A Pott's fracture typically involves a fracture of the **lateral malleolus** (distal fibula) and the **medial malleolus** (distal tibia), with or without a fracture of the **posterior malleolus**. This occurs due to a mechanism of injury that involves a combination of rotation and eversion of the ankle. The fracture is named after Percivall Pott, who first described it.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not describe the characteristic bimalleolar or trimalleolar fracture pattern of a Pott's fracture.
**Option B:** This option is also incorrect as it does not accurately represent the fracture pattern.
**Option D:** This option is incorrect as it is unrelated to the ankle joint.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that Pott's fracture often requires surgical intervention to restore ankle joint stability and prevent long-term complications such as **osteoarthritis**.
**Correct Answer:** D. Bimalleolar fracture