A classification for hip disease in cerebral palsy

摘要

In their paper, Robin and the important cerebral palsy research group from Melbourne, Australia provide a significant addition to the classification of this diverse group of patients. Reproducible classification systems are critical to good research and good clinical care. Since the Gross Motor Function Classification System (GMFCS) revolutionized the categorization of children with cerebral palsy (CP), it has become clear that the geographical classification system (hemiplegia, diplegia, and tetra/quadriplegia) is both outmoded and unreliable.1 The description of the hip disorders in patients with CP was equally poor, with some research stating that up to 50% of patients with 'dislocating' hips developed hip pain when the patient aged. Who were these patients and what were their hip disorders? Reimers, in his classic work on the stability of the hip in children, added the migration percentage of hip subluxation to the lexicon of classification systems. While this has become the standard of hip measurement in CP, it is still difficult to determine where in the spectrum of disease a particular patient lies. Reimers' classification also does not address the degree of acetabular involvement