Abstract

Abstract INTRODUCTION Return to work (RTW) has become an increasingly important metric of spinal surgery success. Lumbar spondylolisthesis is a relatively common spinal pathology that may manifest as low back pain and/or leg pain, causing functional disability and hindering patients from working and performing activities of daily living. Currently, there is a lack of nationwide data evaluating RTW in lumbar spondylolisthesis. METHODS We queried the Quality Outcomes Database for employed patients that underwent single-level posterior spinal fusion for Meyerding grade I degenerative lumbar spondylolisthesis. We compared cases who returned to work within 12 mo with regard to baseline demographics, comorbidities, clinical characteristics, and patient reported outcomes. A multivariable logistic regression model was fitted for 12-mo RTW adjusting for an array of pre- and intraoperative variables. RESULTS A total of 163 patients with available 12-mo follow-up data (84%) were analyzed. Median age was 57 yr (interquartile range: 51-60 yr) and 57% were females (n = 93). On multivariable analysis, patients that were working at the time of surgery were significantly more likely to RTW compared to those that were not working (OR 4.62, 95% CI 1.42-15.07, P < .001). In addition, college education (OR 3.30, 95% CI 1.18-9.24, P = .02) was associated with significantly higher odds of returning to work compared to high-school or less education. The effect of postcollege education (OR 5.27, 95% CI 1.46-19.05, P = .01), baseline ODI score (OR 0.64, 95% CI 0.34 - 1.21, P = .17) and smoking status (OR 0.45, 95% CI 0.13-1.54, P = .20) were not found to be significant. Model c-statistic was 0.76. CONCLUSION Analysis of data from a national spinal registry revealed that employment status at the time of surgery and education level were the most significant predictors of 12-moh RTW for patients undergoing single-level posterior lumbar fusion for degenerative spondylolisthesis. The findings of the present study may assist surgeons and patients with setting realistic treatment expectations during preoperative discussions.

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