What is anterolisthesis of C4 on C5?

Anterolisthesis of C4 on C5 refers to a condition where the fourth cervical vertebra (C4) slips forward relative to the fifth cervical vertebra (C5). This displacement can result from degenerative changes, trauma, or instability in the cervical spine, potentially leading to neck pain, nerve compression, and neurological symptoms. Diagnosis typically involves imaging studies like X-rays or MRI, and treatment options may include physical therapy, medication, or, in severe cases, surgical intervention to stabilize the spine.