What type of spinal injury is often related to rotational forces being too great?

• A. Hyperextension injury
• B. Rotational fracture
• C. Spondylolisthesis
• D. Avulsion fracture

Answer: (C)

Spondylolisthesis refers to a condition where one vertebra slips forward over another, often as a result of overextension or trauma. While it can be associated with various factors, it is primarily related to degenerative changes or stress fractures rather than directly resulting from excessive rotational forces.

In contrast, a rotational fracture typically occurs when extreme twisting forces are applied, leading to a fracture at the point of maximum stress. This type of injury is directly connected to rotational forces that can exceed the structural integrity of bones, making it a key consideration for spinal injuries due to such dynamics. Hyperextension injuries usually involve extreme backward bending of the spine, and avulsion fractures are typically caused by sudden, forceful pulls on ligaments or tendons, not primarily from rotation.

Therefore, the relationship of rotational forces to spinal injuries is most accurately represented by a rotational fracture, which aligns with the mechanism described in the question.