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Congenital dislocation of the hip. The relationship of premanipulation traction and age to avascular necrosis of the femoral head

J Bone Joint Surg Am, 1977 Apr 01;59(3):306-311
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Abstract

A retrospective study involving 276 patients with 319 congenitally dislocated hips was undertaken to assess whether premanipulation fraction prevents avascular necrosis. Roentgenographic criteria were utilized and only cases of frank dislocation unassociated with other disorders were included. It was found that in a child less than one year old, premanipulation traction of twenty-one days or more substantially reduces the incidence of avascular necrosis. For the child more than a year old, however, the prognosis is not as good, even if premanipulation traction is prescribed for twenty-one days or more. We found a 14 per cent incidence of avascular necrosis in children less than three months old and suggest that the cartilaginous femoral head prior to the appearance of the ossific nucleus is particularly vulnerable to vascular injury.

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    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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