• Conor P Lynch, Elliot D K Cha, Caroline N Jadczak, Shruthi Mohan, Cara E Geoghegan, and Kern Singh.
• Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL.
• Spine. 2021 Oct 15; 46 (20): 137813861378-1386.

Study DesignRetrospective cohort.ObjectiveTo assess the relationship of depressive symptoms with patient reported outcome measures (PROMs) in patients undergoing either primary or revision anterior cervical discectomy and fusion (ACDF) procedures.Summary Of BackgroundDepression has been associated with poorer outcomes following ACDF. However, research examining the relationship between depression and PROMs in revision ACDF procedures is limited.MethodsA prospective database was retrospectively reviewed for primary or revision, single- or multilevel ACDF procedures from 2016 to 2019. Patients lacking preoperative Patient Health Questionnaire-9 (PHQ-9) surveys were excluded. Demographic and perioperative characteristics were recorded and analyzed using Fisher's exact test or t test. Patient-reported outcome measures were collected preoperatively and postoperatively. Postoperative improvement from baseline scores (ΔPROM) was calculated at all postoperative timepoints. Differences in mean PROM and ΔPROM between groups and changes from baseline PROM scores within groups were assessed using Student's t test. Linear regression analyzed the impact of preoperative PHQ-9 on ΔPROM.ResultsA total of 143 patients (121 primary and 22 revision) were included. Significant differences between groups were demonstrated at the preoperative timepoint for Neck Disability Index (NDI) (P = 0.022). ΔPROM values did not significantly differ between groups. Regression analysis revealed significant relationships between preoperative PHQ-9 and ΔPHQ-9 at all timepoints, ΔVAS neck at 6-weeks and 6-months, ΔVAS arm at 6-months, and ΔNDI at 6-weeks and 6-months for the primary group (all P < 0.05). Regression analysis revealed no significant associations for the revision group.ConclusionPrimary or revision ACDF procedures did not significantly differ in depressive symptoms through 1-year. Primary ACDF patients significantly improved in all PROMs through all timepoints, while revision patients had limited improvement in PROMs. Preoperative depression may have a stronger association on postoperative outcomes for primary procedures.Level of Evidence: 3.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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