Phantom Limb Pain

Phantom limb pain is a condition where a person feels pain in a limb that has been amputated or is no longer physically present. This occurs because the nervous system, including the brain and spinal cord, continues to send pain signals as if the missing limb were still there. The pain can feel like burning, stabbing, or cramping and may vary in intensity. It primarily affects people who have lost a limb due to injury, surgery, or disease. This condition involves complex interactions between the peripheral nerves, spinal cord, and brain regions responsible for sensation. Phantom limb pain can significantly impact a person's quality of life by causing distress and limiting daily activities.

Phantom limb pain is a neuropathic pain syndrome characterized by painful sensations perceived in a limb that has been surgically removed or lost due to trauma. The core pathology involves maladaptive neural plasticity and abnormal spontaneous activity in the peripheral nerves, dorsal horn of the spinal cord, and cortical areas such as the somatosensory cortex. It typically arises after amputation and is distinct from residual limb pain, which occurs in the remaining stump. The condition reflects central and peripheral nervous system changes including nerve injury, central sensitization, and cortical reorganization. Clinically, it is significant because it can be chronic, difficult to treat, and may lead to functional impairment and psychological distress.