Opening the skull, which is necessary for certain neurosurgeries, exposes the brain to the risk of infection. To limit this risk and facilitate surgery, a portion of the bone is often temporarily removed. This procedure, known as a craniectomy, allows easier access to the brain and facilitates drainage.
To restore the integrity of the skull and protect the brain, a cranioplasty is usually scheduled a few months later. This involves reconstructing the missing bone with a biocompatible material.