Cerebral palsy is commonly classified by limb involvement into which patterns?

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Cerebral palsy is commonly classified by limb involvement into patterns such as monoplegia, diplegia, hemiplegia, and quadriplegia. This distribution approach reflects how motor impairment presents across the body and helps describe the extent of involvement. Monoplegia means only one limb is affected, often an arm. Diplegia mainly affects the legs more than the arms, which commonly impacts gait and balance. Hemiplegia involves one side of the body, typically an arm and leg on the same side, reflecting injury patterns in one cerebral hemisphere. Quadriplegia involves all four limbs and often trunk and face as well, indicating more widespread motor involvement. The other options imply only a single pattern or a restricted scope, which does not capture the typical range of limb involvement seen in cerebral palsy.