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Study Design  Retrospective cohort study. Objective  The U.S. Food and Drug Administration issued a warning in 2008 against off-label bone morphogenetic protein (BMP-2) use. We aimed to determine (off-label) BMP-2 use in two periods and associations with complications. Methods  We included 340,393 patients undergoing spinal fusions from the Premier Perspective database (2006 to 2012). BMP-2 use was determined from billing in 2006 to 2008 versus 2009 to 2012. Outcomes included revisions, length of hospital stay (LOHS), and cost of hospital stay (COH). Multilevel regressions measured associations between BMP-2 and outcomes; odds ratios (ORs) and 95% confidence intervals (CIs) are reported. Results  BMP-2 use decreased from 18.7% in 2006 to 11.5% in 2012. Off-label use remains but is decreasing, particularly for cervical anterior (5.1 versus 2.0%) and cervical posterior procedures (15.3 versus 8.5%; both p  &lt; 0.01 comparing 2006 to 2008 with 2009 to 2012). BMP-2 remains associated with increased LOHS (median 2 versus 3 days; both periods) and COH (median $15,455 versus $27,881 in 2006 to 2008; $17,007 versus $30,331 in 2009 to 2012). Adjusted ORs for the association between BMP-2 and adverse outcomes were generally lower in 2009 to 2012 compared with 2006 to 2008. Most notably, we demonstrate lower ORs for revision after cervical fusions in 2009 to 2012 (OR 1.67, CI 1.01 to 2.78) compared with 2006 to 2008 (OR 2.43, CI 1.66 to 3.54). Conclusions  Using a previously untapped data source, we show decreased (off-label) BMP-2 use in spinal fusions, particularly in cervical fusions. Although there was a tendency of decreased odds in 2009 to 2012, higher resource utilization and odds for complications remain in patients using BMP-2. A national registry or prospective observational studies will benefit the ongoing discussion.

Change in Off-Label Use of Bone Morphogenetic Protein in Spine Surgery and Associations with Adverse Outcome