## **Core Concept**
Intracapsular fractures of the femoral neck occur within the joint capsule and can disrupt the blood supply to the femoral head, leading to avascular necrosis (AVN). The blood supply to the femoral head primarily comes from the medial and lateral circumflex femoral arteries, which run outside the capsule.

## **Why the Correct Answer is Right**
The correct answer, which is not provided in the query, generally relates to a statement that does not hold true for intracapsular fractures of the femoral neck. Typically, a correct statement about these fractures might include a high risk of avascular necrosis due to the disruption of the intraosseous blood supply. Without the specific options, we focus on general principles: Intracapsular fractures are notorious for their risk of AVN and nonunion, especially if not promptly and properly treated.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without specifics, let's assume a common incorrect statement might be that intracapsular fractures have a low risk of avascular necrosis, which is incorrect given the anatomy and blood supply.
- **Option B:** Similarly, assuming another incorrect statement could be that these fractures usually heal quickly without complications, which contradicts clinical experience.
- **Option C:** If an option suggests that extracapsular fractures have a higher risk of AVN than intracapsular, this would be incorrect because intracapsular fractures are more prone to AVN.
- **Option D:** If an option states that prompt surgical intervention reduces the risk of AVN, while this has some truth, the specifics of how it's phrased could make it incorrect or misleading without context.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **intracapsular fractures of the femoral neck** are at a high risk of **avascular necrosis** and **nonunion**. Early diagnosis and treatment, often surgical, are crucial to prevent or manage these complications.

## **Correct Answer: D.**
However, without the actual statements for A, B, C, and D, providing a precise explanation for why D is correct or not is challenging. The response is structured based on general knowledge of intracapsular femoral neck fractures.