What term is used for an injury where the skull is penetrated?

An open head injury refers to a type of injury where there is a break in the skull, leading to penetration of the cranial cavity. This type of injury often involves a breach of the protective barriers of the skull and meninges, making it more severe than a closed head injury. Open head injuries can result from blunt force trauma or penetrating objects, such as bullets or sharp objects, which can lead to more serious complications, including infection and direct damage to brain tissue. It is critical to identify an open head injury promptly, not only for immediate treatment but also to assess for neurological deficits that may arise as a result of the injury.

In contrast, closed head injuries involve trauma without any puncture or break in the skull. Conditions like concussions and contusions refer to specific types of brain injuries rather than the state of the skull itself. Therefore, the term ‘open head injury’ specifically indicates that the skull has been penetrated, making it the correct choice.