**Core Concept**
Bohler's angle is a radiological measurement used to assess the integrity of the calcaneus bone. It is defined as the angle formed by the intersection of two lines: one drawn along the inferior surface of the posterior facet and the other along the superior surface of the posterior facet.

**Why the Correct Answer is Right**
In a normal calcaneus, Bohler's angle is approximately 20-40 degrees. A decrease in this angle is indicative of a compression fracture of the calcaneus, which can occur due to high-impact trauma such as a fall from a height. The fracture causes the posterior facet of the calcaneus to collapse, resulting in a reduction of Bohler's angle. This is because the compression fracture leads to a loss of the normal curvature of the posterior facet, which in turn reduces the angle formed by the intersection of the two lines.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because Bohler's angle is not typically associated with fractures of the cuboid bone. While the cuboid bone can be involved in midfoot injuries, it is not directly related to the measurement of Bohler's angle.
* **Option B:** This option is incorrect because the decrease in Bohler's angle is not a characteristic feature of fractures of the talus bone. While the talus bone can be involved in midfoot injuries, the measurement of Bohler's angle is specific to the calcaneus bone.
* **Option C:** This option is incorrect because the decrease in Bohler's angle is not a characteristic feature of fractures of the navicular bone. While the navicular bone can be involved in midfoot injuries, the measurement of Bohler's angle is specific to the calcaneus bone.

**Clinical Pearl / High-Yield Fact**
A decrease in Bohler's angle is a classic radiological sign of a compression fracture of the calcaneus, which can occur due to high-impact trauma. This is an important clinical correlation to remember when evaluating patients with midfoot injuries.

**Correct Answer:** D.