Abstract
A survey has been undertaken of the various complications of halo-pelvic distraction in 118 patients with scoliosis prior to spinal fusion. In the first sixty-two patients the standard solid distraction rods were employed. The neurological complications included ten cases of cranial nerve lesions and two cases of paraplegia, one of them permanent. Springs were then incorporated in the distraction rods so as to allow direct readings ofthe distraction forces, and a total force of 18 kilograms was not exceeded in the last fifty-six patients. No further serious neurological complications occurred, but the amount of correction achieved in the adolescent and juvenile idiopathic types of scoliosis was reduced.
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