Hip Dislocation Associated with Cerebral Palsy.

概要

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102 hips of 53 children with cerebral palsy were evaluated radiographically. The length of follow up averaged 7 years, (range, 5 to 11 years).18 hips of 13 children were subluxated or dislocated before 6 years old, of which AHI was significantly decreased from 2 years of age, and acetabular angle was significantly increased from 3 years.30 hips of 15 children were not subluxated at 6 years old, and all remained free from subluxation except 1 hip after 6 years. 16 hips of 10 children in which AHI decreased less than 50% were improved by surgery. All except 1 hip were free from subluxation after operation.2 hips of 2 children were subluxated at 13 years of age both of whom had severe scoliosis.We concluded that if progressive hip lateralization was observed before the child was 6 years old, it is better to treat operatively. Children with cerebral palsy who had severe scoliosis and pelvic obliquity needed special care when evaluating then radiographcally.