Because of the availability of new knowledge about the neurobiology of developmental brain injury, information that epidemiology and modern brain imaging is providing, the availability of more precise measuring instruments of patient performance, and the increase in studies evaluating the efficacy of therapy for the consequences of injury, the need for reconsideration of the definition and classification of cerebral palsy (CP) has become evident. Pertinent material was reviewed at an international symposium participated in by selected leaders in the preclinical and clinical sciences. Suggestions were made about the content of a revised definition and classification of CP that would meet the needs of clinicians, investigators, and health officials, and provide a common language for improved communication. With leadership and direction from an Executive Committee, panels utilized this information and have generated a revised Definition and Classification of Cerebral Palsy. The Executive Committee presents this revision and welcomes substantive comments about it.

Cerebral palsy occurs in every to 2/1000 to 2.5/1000 live births.¹ It is " . . . an umbrella term covering a group of non-progressive, but often changing, motor impairment syndromes secondary to lesions or anomalies of the brain arising in the early stages of development."² Thus, whatever additional developmental difficulties individuals with cerebral palsy might have as a result of impairment of the developing central nervous system, the hallmark of these conditions is a disorder in the development of gross motor function.

The 21st century is witnessing a sea change in our thinking about ‘disability’. Nowhere are these developments more apparent than in the field of childhood disability, where traditional biomedical concepts are being incorporated into – but expanded considerably by – new ways of formulating ideas about children, child development, social‐ecological forces in the lives of children with chronic conditions and their families, and ‘points of entry’ for professionals to be helpful. In this paper, we have tried to package a set of ideas, grounded in the World Health Organization's International Classification of Functioning, Disability and Health (the ICF), into a series of what we have called ‘F‐words’ in child neurodisability – function, family, fitness, fun, friends and future. We hope this will be an appealing way for people to incorporate these concepts into every aspect of clinical service, research and advocacy regarding disabled children and their families.

The Gross Motor Function Classification System (GMFCS) for cerebral palsy has been widely used internationally for clinical, research, and administrative purposes. This paper recounts the ideas and work behind the creation of the GMFCS, reports on the lessons learned, and identifies some philosophical challenges inherent in trying to develop an ordered, valid, and consistent system to describe function in children and adolescents with developmental differences. It is hoped that these ideas will be useful to others who choose to expand the field with additional systems in other areas of childhood neurodisability.

Parental care for a child with a developmental disability is an enormous responsibility, one that can far exceed that of typical parental care. While most parents adapt well to the situation of caring for a child with a disability, some do not. To understand parents' adaptations to their children's disabilities, the complex nature of stress processes must be accounted for and the constructs and factors that play a role in the caregiving must be considered. Evidence suggests that there is considerable variation in how caregivers adapt to their caregiving demands. Many studies have sought to qualify the association between caregiving and health outcomes of the caregivers. Contextual factors such as SES, child factors such as child behaviour problems and severity of disability, intra-psychic factors such as mastery and self-esteem, coping strategies and social supports have all been associated with psychological and/or physical outcome or parents or primary caregivers. In reviewing these issues, the literature appears to be limited by the use of traditional analytic approaches which examine the relationship between a factor and an outcome. It is clear, however, that changes to single factors, as represented in these studies, occur very rarely even in the experimental context. The literature has also been limited by lack of reliance on specific theoretical frameworks. This conceptual paper documents the state of current knowledge and explores the current theoretical frameworks that have been used to describe the caregiving process from two diverse fields, pediatrics and geriatrics. Integration of these models into one comprehensive model suitable for this population of children with disabilities and their caregivers is proposed. This model may guide future research in this area.