The Impact of Obesity on Fusion Rate Following Anterior Cervical Discectomy and Fusion: A Population-Based Study

Among 21,467 matched patients, the incidence of pseudarthrosis was lower in the obese group at 12.5% compared to 13.6% in the non-obese group.

• Obesity may be associated with a lower incidence of pseudarthrosis after anterior cervical discectomy and fusion (ACDF).
• At 6 months post-surgery, pseudarthrosis occurred in 12.5% of obese patients versus 13.6% of non-obese patients.
• This trend continued at 1 year, with rates of 13.5% in the obese group compared to 14.6% in the non-obese group.
• At 2 years, the incidence of pseudarthrosis was 14.5% in obese patients and 15.7% in non-obese patients.
• Lower rates of revision surgery were also observed in obese patients compared to non-obese patients.

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