Anterior cord syndrome is a specific type of incomplete spinal cord injury that affects the anterior (front) two-thirds of the spinal cord. This condition typically results from damage to the anterior spinal artery, which supplies blood to the front portion of the spinal cord, or from direct trauma that compresses or damages the anterior structures. The syndrome is characterized by a distinctive pattern of neurological deficits that distinguish it from other types of spinal cord injuries.
The hallmark features of anterior cord syndrome include complete loss of motor function below the level of injury, loss of pain sensation, and loss of temperature sensation. However, patients typically retain proprioception (position sense) and light touch sensation because the posterior columns of the spinal cord remain intact. This creates a unique clinical picture where a patient may be unable to move their legs or feel pain, yet can still sense when someone touches them lightly or know where their limbs are positioned in space.
Anterior cord syndrome accounts for approximately 10-20% of all incomplete spinal cord injuries and has a variable prognosis. While some patients experience significant recovery of motor function, particularly in the first six months after injury, many are left with permanent paralysis and sensory deficits. The extent of recovery depends on the severity of the initial injury, the level of the spinal cord affected, and how quickly treatment is initiated. Early recognition and aggressive medical management are critical for optimizing outcomes.