Children with diplegia have involvement of both legs although one may be more severely affected than the other. Diplegia is frequently associated with a history of premature birth. Most patients will be mobile but this group of patients can be prone to developing contractures which may hinder walking ability.

Hips, knees and feet may develop deformities and multilevel surgery is often indicated in adolescence. This may include soft tissue surgery to muscles and tendons as well as osteotomies and foot fusions. Gait analysis is particularly useful in Diplegia