A therapist is comparing the prognoses of four patients, each with a different incomplete SCI syndrome. All injuries are at the same neurological level and of similar severity. Which patient would the therapist expect to have the POOREST prognosis for motor recovery?

A therapist is comparing the prognoses of four patients, each with a different incomplete SCI syndrome. All injuries are at the same neurological level and of similar severity. Which patient would the therapist expect to have the POOREST prognosis for motor recovery?

• A. Brown-Séquard syndrome
• B. Central cord syndrome
• C. Anterior cord syndrome
• D. Posterior cord syndrome

Answer: (B)

Motor recovery after an incomplete spinal cord injury depends largely on which neural pathways are damaged, especially the corticospinal tract that controls voluntary movement. Central cord syndrome hits the cervical cord in the middle, where fibers serving the arms are densely packed. This pattern tends to produce more pronounced weakness in the upper limbs and can limit long-term recovery of motor function, particularly in older patients who often have preexisting degenerative changes. Because the central fibers controlling arm movement are affected and recovery can be slow and incomplete, central cord syndrome is often associated with the poorest motor prognosis among these incomplete syndromes. In contrast, Brown-Séquard syndrome preserves substantial function on one side and spares many motor pathways on the other, posterior cord syndrome largely involves sensory tracts with relatively preserved motor function, and anterior cord syndrome, while severely affecting motor and pain/temperature, does not typically have the same pattern of central arm-dominant weakness that limits recovery as seen with central cord syndrome.

Motor recovery after an incomplete spinal cord injury depends largely on which neural pathways are damaged, especially the corticospinal tract that controls voluntary movement. Central cord syndrome hits the cervical cord in the middle, where fibers serving the arms are densely packed. This pattern tends to produce more pronounced weakness in the upper limbs and can limit long-term recovery of motor function, particularly in older patients who often have preexisting degenerative changes. Because the central fibers controlling arm movement are affected and recovery can be slow and incomplete, central cord syndrome is often associated with the poorest motor prognosis among these incomplete syndromes. In contrast, Brown-Séquard syndrome preserves substantial function on one side and spares many motor pathways on the other, posterior cord syndrome largely involves sensory tracts with relatively preserved motor function, and anterior cord syndrome, while severely affecting motor and pain/temperature, does not typically have the same pattern of central arm-dominant weakness that limits recovery as seen with central cord syndrome.