The Journal of Bone and Joint Surgery, Vol 66, Issue 8 1188-1197, Copyright © 1984 by Journal of Bone and Joint Surgery, Inc
Posterior spinal arthrodesis for congenital scoliosis. An analysis of the cases of two hundred and ninety patients, five to nineteen years old
RB Winter, JH Moe and JE Lonstein
We analyzed the results of posterior arthrodesis of the spine for
congenital scoliosis, with or without Harrington instrumentation, in 290 of
323 patients who were operated on between the ages of five and nineteen
years and were followed for two years or more. The length of follow-up
averaged six years and ranged from two to twenty-eight years. The average
curve before surgery was 55 degrees (range, 13 to 155 degrees), the average
curve at correction was 38 degrees (range, 5 to 102 degrees), and the
average curve at final follow-up was 44 degrees (range, 5 to 103 degrees).
Bending of the fusion mass of more than 10 degrees was seen in forty
patients; pseudarthrosis, in twenty; and adding-on of vertebrae with an
increase in the curve of more than 10 degrees, in seven patients. There
were four deaths, only one of them in the last twenty-five years. One was
due to intraoperative cardiac arrest; one, to intraoperative
overtransfusion; one, to postoperative overtransfusion; and one, to
gastrointestinal bleeding eight months postoperatively while the patient
was in a Risser jacket. Two patients became paraplegic due to excessive
distraction with the Harrington rod, and two others had a partial
cranial-nerve lesion due to halo traction. Based on these results, we
concluded that posterior arthrodesis of the spine is satisfactory for most
patients with congenital scoliosis. The most common problem was bending of
the fusion mass in growing children, which occurred in 14 per cent of the
patients. Use of Harrington instruments allowed slightly better correction
(36 per cent compared with 28 per cent) but was associated with the only
cases of paraplegia and infection in the series.