**Question:** All of the following are associated with supracondylar fracture of humerus, EXCEPT:

A. Pulmonary complications
B. Increased intracranial pressure
C. Acute renal failure
D. Pulmonary embolism

**Core Concept:**

A supracondylar fracture of the humerus is a type of fracture that occurs at or near the elbow joint. These fractures are commonly seen in children and are often associated with high-energy trauma like falls from height. The correct answer is related to complications that may arise due to the fracture itself or its management, but not directly associated with the supracondylar fracture.

**Why the Correct Answer is Right:**

In the context of supracondylar fracture of the humerus, the correct answer is **D.** Pulmonary embolism (D). Pulmonary embolism is a life-threatening condition characterized by the formation and obstruction of blood clots in the pulmonary arteries. While pulmonary embolism can occur due to immobility, trauma, or other factors, it is not directly associated with a supracondylar fracture of the humerus.

**Why Each Wrong Option is Incorrect:**

A. Pulmonary complications (A) can occur due to immobilization, infection, or respiratory compromise related to the fracture or surgery. However, this is not specific to supracylinder fractures.
B. Increased intracranial pressure (B) may be associated with high-energy trauma, but it is not directly related to a supracondylar fracture of the humerus.
C. Acute renal failure (C) can occur secondary to hypovolemic shock, impaired perfusion, or complications related to anesthesia or surgery. Although renal failure may occur in some cases, it is not specifically linked to supracylinder fractures.

**Clinical Pearl:**

Supracondylar fractures of the humerus are a common pediatric fracture that requires prompt diagnosis and treatment to prevent complications like compartment syndrome, neurovascular compromise, and delayed union. While the correct answer (D) is not directly associated with the fracture, it is essential for medical students to be aware of potential complications related to immobilization and surgery, as these can be encountered in clinical practice.