Question

The severity of a pelvic fracture is related to the extent of damage to which arch, anterior or posterior?

1) Anterior
2) Posterior

Answer 1

The severity of a pelvic fracture is more closely related to damage to the posterior arch, which is essential for weight transferral and stability during locomotion.

Step-by-step explanation:

The severity of a pelvic fracture is closely related to the extent of damage to the posterior arch. The pelvic girdle, which is crucial for bearing the weight of the body and providing locomotion, is composed of two large hip bones that join anteriorly at the pubic symphysis and posteriorly at the sacroiliac joints with the sacrum. The posterior aspects, including the sacroiliac joints and the sacrum itself, are key for weight transfer and stable walking, hence damage to the posterior arch of the pelvic girdle can result in more severe consequences than damage to the anterior arch.