 Spastic diplegia accounts for about 22% of all diagnoses of cerebral palsy, and together with spastic quadriplegia and spastic triplegia make up the broad classification spastic cerebral palsy, which accounts for 70% of all cerebral palsy diagnoses.Individuals with spastic diplegia are very tight and stiff and must work very hard to successfully resist and "push through" the extra tightness they perpetually experience.Other than this, however, these individuals are almost always normal in every significant clinical sense.