A multivariate analysis of anatomic success of retinal detachments treated with scleral buckling

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One hundred and twenty-three preoperative, intraoperative, and postoperative variables were evaluated to assess their effect on anatomic success of scleral buckling for retinal detachment. The relative importance of each variable was tested in a logistic regression equation. This equation identified ten significant variables for predicting the outcome of retinal detachment surgery. The significant variables were: preoperative proliferative vitreoretinopathy (adjusted odds ratio, AOR, 13.60), previous buckle by G.F. Hilton (AOR = 8.03), total detachment (AOR = 5.72), preoperative vitreous hemorrhage (AOR = 3.08), tension less than 10 mm Hg (AOR = 2.40), hemorrhagic complications (AOR = 2.62), previous buckles by others (AOR = 2.10), injection into the vitreous at surgery with either saline or balanced salt solution (AOR = 2.32) or air/sulfahexafluoride (AOR = 7.06), and preoperative vision less than 0.3 (20/60 or worse) (AOR = 2.14). The number of cryopexy applications was specifically tested in the equation, but while significant in a univariate analysis, it was not found to be significant in the multivariate analysis.