Abstract
In cerebral palsy, hip dislocation is either congenital or paralytic. Diagnosis and treatment of these two different conditions is thought to be difficult. Two infants suffering from cerebral palsy with congenital hip dislocation were reported.
Their hip dislocations were found at an early stage, 1 and 6 month old respectively. The affected hip joints could not be reduced conservatively. We reduced the joints operatively, and found inverted limbus. At last medical examination, it was found that 1 case, with ataxic diplegia, could walk at 4 years and 3 months. The other case, with spastic quadriplegia, was unable to sit at 2 years and 8 months. Their hip X-rays showed good concentricity with acetabular dysplasia.
The diagnosis of congenital dislocation was possible because of the early detection and operative findings. The earlier results were good. However they must be observed carefully for spasticity, coxa valga and magna, which can induce hip dislocation.