History of Prior Lumbar Surgery Does Not Impact Mental Health Outcomes Following Anterior Cervical Discectomy and Fusion.

ABSTRACT

STUDY DESIGN: This was a retrospective cohort study. OBJECTIVE: The objective of this study was to evaluate the impact of undergoing a prior lumbar procedure on mental health outcomes following anterior cervical discectomy and fusion. SUMMARY OF BACKGROUND DATA Revision and reoperations are perceived as risk factors for worse mental health outcomes. METHODS: A retrospective review of a surgical database was performed for cervical and lumbar procedures. The mental health measures used were Short Form 12-Item Mental Composite Score (SF-12 MCS) and Patient Health Questionnaire 9 (PHQ-9). Secondary outcomes of interest were Visual Analogue Scale for neck and arm pain, Neck Disability Index, and Short Form 12-Item Physical Composite Score (SF-12 PCS). All outcomes were collected preoperatively and at 6 weeks, 12 weeks, 6 months, and 1 year postoperatively. Minimum clinically important difference (MCID) was calculated using established values. Patients were grouped based on the surgical history of an elective lumbar spine procedure and propensity-matched. Differences in postoperative outcome scores and MCID achievement were evaluated using linear and logistic regression respectively. RESULTS: A total of 74 patients were included in this study. Mental health outcomes did not demonstrate significant differences between groups for SF-12 MCS and PHQ-9 for all time points except at 6 weeks for PHQ-9 ( P =0.038). MCID achievement was not significantly impacted by surgical history for all outcome measures at all postoperative time points (all P >0.050). The majority of patients achieved an MCID by the 1-year time point for all outcomes for patients without a prior lumbar surgery except for Visual Analogue Scale arm and SF-12 PCS, while those with a surgical history achieved an MCID for all outcomes except SF-12 PCS and PHQ-9. CONCLUSIONS: Anterior cervical discectomy and fusion patients with a past history of lumbar surgery demonstrated significant improvements in depression, neck and arm pain, disability, and physical function as those without a past lumbar surgical history. Prior surgery also did not impact MCID achievement for all outcomes.