Allograft versus autograft bone in idiopathic scoliosis surgery: a multivariate statistical analysis.

The use of autograft versus allograft bone in scoliosis surgery is critically evaluated by a multivariate statistical analysis. Two groups of patients matched for age, angle of curve, and length of fusion, forming a consecutive series of posterior arthrodesis for idiopathic scoliosis, were evaluated. Group A consisted of 83 patients receiving autografts, and group B consisted of 99 patients receiving allografts. There was a significant reduction in operation time in the allograft group, and blood loss also decreased. After 1 year there was no significant difference in correction of the curve. Given the problems of discomfort at the donor site scar, we recommend the use of allograft bone in scoliosis surgery.