• Timothy J Hartman, James W Nie, Omolabake O Oyetayo, Eileen Zheng, Keith R MacGregor, Fatima N Anwar, Vincent P Federico, Dustin H Massel, Arash J Sayari, Gregory D Lopez, and Kern Singh.
• Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
• World Neurosurg. 2023 Jul 1; 175: e1175e1181e1175-e1181.

ObjectiveTo evaluate the effect of early depressive burden on PROMs in the setting of cervical disc replacement (CDR).MethodsPatients who had undergone primary elective CDR with recorded preoperative and 6-week postoperative 9-item Patient Health Questionnaire (PHQ-9) scores were identified. Early depressive burden was calculated via addition of the preoperative and 6-week PHQ-9 scores. Patients were divided into 2 cohorts, those with summative PHQ-9 scores beneath one-half standard deviation less than the mean (Lesser Burden; LB) and those with summative PHQ-9 scores above one-half standard deviation greater than the mean (Greater Burden; GB). Magnitude of improvement in PROMs (ΔPROM) was compared within and between cohorts at 6-weeks (ΔPROM-6W) and final follow-up (ΔPROM-FF). PROMs evaluated included PROMIS-PF/NDI/VAS-Neck (VAS-N)/VAS-Arm (VAS-A)/PHQ-9.ResultsFifty-five patients were included with 34 in the LB cohort. The LB cohort demonstrated improvements from the preoperative baseline in 6-week PROMIS-PF/NDI/VAS-N/VAS-A (P ≤ 0.012, all). The GB cohort demonstrated improvements from the preoperative baseline in 6-week NDI/VAS-N/VAS-A/PHQ-9 (P ≤ 0.038, all). The GB cohort demonstrated greater ΔPROM-6W and ΔPROM-FF in PHQ-9 (P ≤ 0.047, both). The LB cohort demonstrated a greater ΔPROM-FF in PROMIS-PF (P = 0.023).ConclusionsPatients with a greater depressive burden were more likely to experience greater magnitudes of improvements in PHQ-9 at both 6-week and final follow-up and experience clinically meaningful improvement in depressive symptoms. Patients with a lesser depressive burden were more likely to experience a greater magnitude of improvement in PROMIS-PF at final follow-up and experience clinically meaningful improvement in physical function.Copyright © 2023 Elsevier Inc. All rights reserved.

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