In anterior cord syndrome, which modalities are preserved?

• A. Proprioception and vibration
• B. Pain and temperature
• C. All senses
• D. Motor function

Answer: (A)

In anterior cord syndrome, the injury primarily involves the anterior two-thirds of the spinal cord, affecting the spinothalamic tract (pain and temperature) and the corticospinal tract (motor function). The dorsal columns, which carry proprioception and vibration, lie in the posterior part of the cord and are spared because they’re supplied differently and located posteriorly. As a result, proprioception and vibration are preserved, while pain/temperature and motor function are lost below the level of injury. This is why the best answer highlights preserved proprioception and vibration.