Monoplegia

Lore & Background

Monoplegia is paralysis localized to a single limb or specific region of the body. Upper limb monoplegia is sometimes called brachial monoplegia, while lower limb monoplegia is termed crural monoplegia. Monoplegia in the lower extremities is less common than in the upper extremities. Monoparesis is a similar but less severe condition where one limb is very weak rather than paralyzed. Many conditions causing paraplegia or quadriplegia may initially present as monoplegia, so spinal paraplegia should be considered during diagnosis. Several cerebral disorders leading to hemiplegia may also begin as monoplegia.

Reader's Guide

Monoplegia is significant as a neurological condition that often indicates underlying disorders such as cerebral palsy, stroke, or spinal cord lesions. Its diagnosis involves physical and neurologic examination, with needle electromyography and MRI being key tools. Treatment focuses on physical therapy and counseling, with constraint-induced movement therapy and bimanual therapy showing effectiveness for upper limb cases. Brain-computer interface systems are proposed for rehabilitation after stroke. The condition's rarity and potential to evolve into more extensive paralysis make accurate diagnosis critical.

Did You Know?

• Monoplegia of the upper limb is sometimes referred to as brachial monoplegia.
• Monoplegia in the lower extremities is not as common as in the upper extremities.
• Monoplegia is frequently associated with cerebral palsy and is often regarded as its mildest form.