Observational Study of Depression in Patients Undergoing Cervical Disc Arthroplasty: Evidence of a Correlation between Pain Relief and Resolution of Depression

Poor patient-reported mental health correlates with inferior patient-reported outcome measures following cervical disc replacement

PURPOSE

This study aims to assess the correlation between the patient-reported mental health and the self-reported outcome measures (PROMs) physical function, pain, and disability at different time points following disc replacement (CDR).

METHODS

A single-surgeon registry was searched for patients who had undergone CDR, excluding those with indication for infection, cancer, or trauma. One hundred fifty-one patients were included. PROMs were collected preoperatively as well as 6 weeks, 3 months, 6 months, and 1 year postoperatively. Mental health measures evaluated included 12-Item Short Form (SF-12), Mental Component Score (MCS), and Patient Health Questionnaire-9 (PHQ-9) which were individually assessed via Pearson's correlation tests in relation to Patient-Reported Outcome Measurement Information System Physical Function (PROMIS-PF), SF-12 Physical Component Score (PCS), visual analog scale (VAS) neck and arm pain, and Neck Disability Index (NDI).

RESULTS

SF-12 MCS positively correlated with PROMIS-PF (range: r = 0.369-0.614) and SF-12 PCS (range: r = 0.208-0.585) with significance found at two or more time points for each (p ≤ 0.009, all). SF-12 MCS negatively correlated with VAS neck (range: r = - 0.259 to - 0.464), VAS arm (range: r = - 0.281 to - 0.567), and NDI (range: r = - 0.474 to - 831) with significance found at three or more time points (p ≤ 0.028, all). PHQ-9 significantly negatively correlated with PROMIS-PF (range: r = - 0.457 to - 0.732) and SF-12 PCS (range: r = - 0.332 to - 0.629) at all time points (p ≤ 0.013, all). PHQ-9 positively correlated with VAS neck (range: r = 0.351-0.711), VAS arm (range: r = 0.239-0.572), and NDI (range: r = 0.602-0.837) at four or more periods (p ≤ 0.032, all).

CONCLUSION

Patients undergoing CDR who reported lower mental health scores via either SF-12 MCS or PHQ-9 were associated with increased perception of pain and disability. Disability level correlated with mental health at all time periods. Patients with optimized mental health may report higher outcome scores following CDR.

The influence of peri-operative depressive symptoms on medium-term spine surgery outcome: a prospective study

PURPOSE

To investigate the role of depressive symptoms on clinical outcomes in patients undergoing spinal surgery up to 2-year follow-up.

METHODS

The study used data from an institutional spine surgery registry (January 2016, through March 2022) to identify patients (> 18 years) undergoing spine surgery. Patients with Oswestry Disability Index (ODI) < 20/100 at baseline or undergoing surgery on the cervical spine or for idiopathic spinal deformity and trauma patients were excluded. The patients were divided into two groups based on the pre-operative Mental Component Summary (MCS) score of the SF-36: depression group (MCS ≤ 35) or non-depression group (MCS > 35). The ODI and MCS scores trajectory were wined over the 24-month post-surgery between groups. Additionally, a secondary subgroup analysis was conducted comparing outcomes between those with depressive symptoms (persistent-depression subgroup) and those without depressive symptoms (never-depression subgroup) at 3 months after surgery.

RESULTS

A total of 2164 patients who underwent spine surgery were included. The pre-operative depression group reported higher ODI total scores and lower MCS than the pre-operative non-depression group at all time points (P < 0.001). The persistent-depression subgroup reported higher ODI total scores and lower MCS than the never-depression subgroup at all follow-ups (P < 0.001).

CONCLUSION

Functional disability and mental health status improve in patients with depression symptoms undergoing spinal surgery. Despite this improvement, they do not reach the values of non-depressed subjects. Over the 2-year follow-up time, patients with depression show a different trajectory of ODI and MCS. Caregivers should be aware of these results to counsel patients with depression symptoms.

Workers compensation patients experiencing depression report meaningful improvement in mental health scores after anterior cervical discectomy and fusion

Background

Mental health has been demonstrated to affect postoperative outcomes. No prior literature has reported the relationship between preoperative mental health on outcomes following anterior cervical discectomy and fusion (ACDF) in the Workers Compensation (WC) population.

Methods

WC claimants who underwent primary ACDF were identified from a single-surgeon retrospective database. Patients were separated by SF-12 MCS score into Depressed (<45.6) or Not Depressed (ND) (≥45.6) cohorts. Patient-reported Outcome Measurement Information System Physical Function (PROMIS PF), SF-12 Physical Component Score (SF-12 PCS), SF-12 MCS, visual analog scale (VAS) neck/arm pain, and Neck Disability Index (NDI) were collected and compared within and between groups. Minimum clinically important difference (MCID) achievement rates were compared between groups.

Results

Depressed patients had greater length of stay (p = 0.007) and postoperative narcotic consumption (p = 0.026). Depressed patients improved at 12-week to 2-year PROMIS PF, 6-month SF-12 PCS, 6-week to 6-month SF-12 MCS, 6-week to 6-month and 2-year VAS neck, all VAS arm, and 6-month NDI (p ≤ 0.045, all). ND patients improved at 12-week to 1-year PROMIS PF, 6-month to 2-year SF-12 PCS, 12-week to 1-year VAS neck, 6-week to 1-year VAS arm, and 12-week to 1-year NDI (p ≤ 0.044, all). Between groups, ND patients reported superior PROMIS PF, SF-12 MCS, VAS neck, VAS arm, and NDI scores at two or more periods (p ≤ 0.045, all). MCID achievement rate regarding SF-12 MCS was greater in the Depressed cohort at all postoperative points up to 1 year (p ≤ 0.020, all).

Conclusion

Depressed patients tended to have a greater length of stay and postoperative narcotic consumption immediately after surgery. Not depressed patients reported more favorable physical and mental function, pain, and disability scores preoperatively and postoperatively. Depressed patients reported greater MCID achievement in mental function following surgery. Depressed patients with WC have a greater likelihood of reporting tangible improvement in mental health scores following ACDF.

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

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.

Depression Screening and Behavioral Health Integration in Musculoskeletal Trauma Care

OBJECTIVES

To report our experiences in implementing a behavioral health integration pathway, including a validated depression screening and referral to care.

DESIGN

Retrospective case series.

SETTING

Single surgeon's musculoskeletal trauma outpatient practice during calendar year 2019.

PATIENTS

All patients presenting to the practice during 2019 were included (n = 573).

INTERVENTION

We piloted the usage of Patient Health Questionnaire (PHQ)-2 and PHQ-9 screening. An evidence-based, real-time treatment protocol embedded in the electronic health record was triggered when a patient screened positive for depression including an automated behavioral health integration pathway.

MAIN OUTCOME MEASUREMENTS

The percentage of patients screened, the results of the PHQ screening, and the number of patients referred and enrolled in behavioral health programs were collected.

RESULTS

Of the 573 patients, 476 (83%) received the PHQ-2 screening, 80 (14%) had a current screening on file (within 1 year), and 17 (3.0%) were not screened. One hundred seventy-two patients (36%) had a PHQ-2 score of 2 or greater and completed the PHQ-9; of them, 60 (35% of patients screened with full PHQ-9, 13% of patients screened) screened positive for symptoms of moderate depression (PHQ-9 score ≥10), and 19 (4.0%) reported passive suicidal ideation (PHQ-9 item 9). Fifty of these patients were referred to behavioral health through the pathway, and 8 patients enrolled in the program. Ten patients were not referred because of a technical error that was quickly resolved. Patients reporting suicidal ideation were managed with psychiatric crisis resources including immediate virtual consult in the examination room.

CONCLUSIONS

This case series demonstrates the feasibility of screening patients for depressive symptoms and making necessary referrals to behavioral health in outpatient musculoskeletal trauma care. We identified 50 patients with depression and appropriately triaged them for further care in our community.

Influence of Preoperative Severity on Postoperative Improvement Among Patients With Myeloradiculopathy Following Anterior Cervical Discectomy and Fusion

STUDY DESIGN

Retrospective cohort.

OBJECTIVE

The aim was to determine how neck pain and disability improve following anterior cervical discectomy and fusion among patients with myeloradiculopathy.

SUMMARY OF BACKGROUND DATA

Neck pain and disability have traditionally been assessed using the neck disability index (NDI) and visual analog scale (VAS). Few studies have investigated how neck pain/disability improve differently among patients with symptoms of both myelopathy and radiculopathy.

METHODS

Patients were identified through retrospective review of a prospective surgical database from 2013 to 2020. Patient-reported outcome measures (PROMs) collected included VAS neck and arm, NDI, 12-Item Short Form physical composite score (SF-12 PCS), Patient-Reported Outcomes Measurement Information System physical function (PROMIS PF), and Patient Health Questionnaire 9 (PHQ-9). PROMs were collected preoperatively and up to 1-year postoperatively. Patients were categorized by preoperative symptom severity: high VAS arm (>7); high NDI (>55); high VAS arm and NDI; and moderate symptoms. Linear and logistic regression evaluated the impact of preoperative symptom severity on PROM scores and achievement of minimum clinically important difference (MCID), respectively.

RESULTS

A total of 187 patients were included, 98 with neither high VAS arm nor NDI (moderate group), 14 with high NDI, 46 with high VAS arm, and 29 with high NDI and VAS arm. Postoperatively, greater symptom severity was a significant predictor of VAS neck (all timepoints; P ≤0.002, all), VAS arm (6 weeks; P =0.007), NDI (6 weeks to 6 months; P <0.001, all), SF-12 PCS (6 months; P =0.004), P ROMIS PF (6 weeks; P =0.007), and PHQ-9 (6 weeks to 6 months; P <0.001, all). Mean postoperative improvement was different among the four severity groups for VAS arm, NDI, and VAS neck (except for 1-year) ( P ≤0.002, all). Overall MCID achievement rates were significantly greater among higher symptom severity groups across VAS arm and NDI ( P ≤0.003, both).

CONCLUSION

PROM improvement and MCID achievement for NDI, VAS neck, and VAS arm differed based on symptom severity.

Comparison of Outcomes Including or Excluding the Level of Listhesis After ACDF in the Setting of Degenerative Spondylolisthesis

STUDY DESIGN

This was a retrospective cohort study.

OBJECTIVE

The goal of this study is to evaluate the outcomes of patients with cervical degenerative spondylolisthesis (DS) undergoing anterior cervical discectomy and fusion (ACDF), specifically comparing surgeries that include versus exclude the DS level.

SUMMARY OF BACKGROUND DATA

DS has been extensively studied in the lumbar spine associated with both back and leg pain leading to worse patient quality of life measures. Conversely, there is a relative dearth of literature regarding surgical and clinical outcomes in the setting of cervical DS.

MATERIALS AND METHODS

A total of 315 patients undergoing ACDF between 2014 and 2018 with minimum of 1-year postoperative patient-reported outcome measures (PROMs) were retrospectively reviewed. Forty-six patients were found to have DS and were categorized based on whether an ACDF was performed at the same level (SL) or at a different level (DL) than the spondylolisthesis. Patient demographics, surgical parameters, preoperative and postoperative radiographs, and PROMs were compared between groups.

RESULTS

Of the 315 patients, a total of 46 met the inclusion criteria including 21 SL and 25 DL patients. There were no significant differences in patient demographics between the groups. The SL cohort had a significantly worse preoperative sagittal vertical axis (SL: 34.4 vs. 26.1, P=0.025) but no difference in postoperative or delta sagittal vertical axis. Both patient cohorts reported significant postoperative improvement in all PROMs, except Short-Form 12 Mental Component Score in the SL group. There were no differences between the groups regarding Visual Analog Scale Neck, Visual Analog Scale Arm, Neck Disability Index, or Short-Form 12 Physical Component Score. Regression analysis demonstrated SL to be a significant negative predictor for improvement in Short-Form 12 Mental Component Score (β: -11.27, P=0.10).

CONCLUSION

Patients treated only at their neurologically symptomatic levels, excluding asymptomatic listhesis in their construct, can expect equivalent radiographic as well as physical function, disability, and pain outcomes 1 year after ACDF compared with patients whose listhetic level was included in their construct.

LEVEL OF EVIDENCE

Level III.

Impact of Prolonged Duration of Symptoms on Mental Health in Anterior Cervical Disectomy and Fusion Patients

INTRODUCTION

Prolonged duration of symptoms is associated with worse pain and disability in patients undergoing anterior cervical discectomy and fusion (ACDF). Our study aims to determine the effect of symptom duration on severity of depression among ACDF patients.

METHODS

We retrospectively reviewed a prospective surgical database from 2006 to 2019 for primary, single, or multilevel ACDF. Patients missing the duration of symptom information or patient-reported outcome measures (PROMs) were excluded. PROMs included Patient Health Questionnaire-9, 12-Item Short Form Mental Component Score, and 12-Item Veterans RAND Mental Component Score and were collected at preoperative, 6-week, 12-week, 6-month, 1-year, and 2-year timepoints. The minimum clinically important difference (MCID) was calculated using the established values. Patients were categorized based on preoperative duration of symptoms as follows: <6 months, ≥6 months and <1 year, 1 to 2 years, and >2 years. Univariate analysis was done to determine differences in demographics and perioperative characteristics. Intergroup differences in PROMs and MCID achievement were evaluated using linear regression and logistic regression, respectively.

RESULTS

Two hundred thirty-one ACDF patients included had a mean age of 49.6 years and most were male (61.0%) and nonobese (<30 kg/m2; 55.0%). The groups differed by their American Society of Anesthesiologists classification (P = 0.029), workers' compensation status (P = 0.022), and diagnosis of herniated nucleus pulposus (P = 0.010). Postoperative mental health outcomes did not significantly differ between duration groups except for Veterans Rand-12 Mental Component Score at 12 weeks (P = 0.044). MCID achievement rates did not significantly differ.

CONCLUSION

Patients undergoing ACDF largely did not demonstrate differences in mental health scores or achievement of MCID based on the duration of symptoms.

Validation of VR-12 Physical Function in Minimally Invasive Lumbar Discectomy

BACKGROUND

Although the Veterans RAND 12-item Physical Component Survey (VR-12 PCS) has been broadly used to evaluate patient-reported outcome measures (PROMs) in spine surgery, its feasibility for use in patients undergoing minimally invasive lumbar discectomy (MIS LD) has not been well studied. This study aimed to assess the feasibility of VR-12 PCS for use up to 2 years postoperatively for MIS LD by correlation with PROMs for physical function.

METHODS

Patients undergoing primary single-level MIS LD procedures were reviewed retrospectively. Results on the VR-12 PCS, 12-Item Short Form (SF-12) PCS, and Patient-Reported Outcomes Measurement Information System (PROMIS PF) were recorded preoperatively and up to 2 years postoperatively. Improvements in postoperative PROMs were calculated and assessed for significant differences from baseline values. Correlation significance and strength were evaluated between VR-12 PCS and SF-12 PCS or PROMIS PF. Scatterplots were constructed to demonstrate relationships of VR-12 PCS with SF-12 PCS and PROMIS PF at each time point.

RESULTS

Our cohort comprised 402 patients. Patients improved significantly from preoperative baseline for all 3 PROMs at all postoperative time points. Both Pearson's correlation and time-independent partial correlation revealed statistically significant strong correlations of VR-12 PCS with SF-12 PCS and PROMIS PF through 2-years.

DISCUSSION

Physical function scores for VR-12, SF-12, and PROMIS PF all demonstrated significant improvements following MIS LD. Strongly statistically significant correlations of VR-12 PCS with SF-12 PCS and PROMIS PF from preoperative measures through 2 years demonstrate the feasibility of VR-12 for assessing patient-reported physical function in MIS LD patients.

The Minimum Clinically Important Difference for Patient Health Questionnaire-9 in Minimally Invasive Transforaminal Interbody Fusion

STUDY DESIGN

Retrospective cohort.

OBJECTIVE

To investigate and establish minimum clinically important differences (MCID) for Patient Health Questionnaire-9 (PHQ-9) among patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS TLIF).

SUMMARY OF BACKGROUND

Spine surgery is linked to postoperative improvements in anxiety, depression, and mental health. These improvements have been documented using patient-reported outcome measures such as PHQ-9. Few studies evaluated the clinical significance of PHQ-9 for lumbar spine surgery.

METHODS

Patients who underwent single-level, primary MIS TLIF from 2015 to 2017 were retrospectively reviewed in a prospective database. Patients with incomplete preoperative and 2-year postoperative PHQ-9 surveys were excluded. Demographic and perioperative characteristics were recorded. PHQ-9, 12-Item Short Form (SF-12), and Veterans RAND 12-Item Health Survey (VR-12) Mental Component Summary (MCS) were collected at preoperative, 6-week, 12-week, 6-month, 1-year, and 2-year intervals. MCID was calculated using anchor and distribution-based methods. SF-12 served as an anchor. MCID was assessed using mean change methodology, four receiver operating characteristic curve assessments, and standard error measurement. Cutoff values were selected from receiver operating characteristic curve analysis. MCID achievement rates for all patient-reported outcome measures were calculated.

RESULTS

A total of 139 patients met inclusion criteria, with a mean age of 55 years and 39% females. The most common spinal pathology was radiculopathy (92%). MCID analysis revealed the following ranges of values: 2.0 to 4.8 (PHQ-9), 6.7 to 12.1 (SF-12 MCS), and 7.5 to 15.9 (VR-12 MCS). Final MCID thresholds were 3.0 (PHQ-9), 9.1 (SF-12 MCS), and 8.1 (VR-12 MCS). MCID achievement at 2-years for PHQ-9, SF-12 MCS, and VR-12 MCS was 89.2%, 85.6%, and 84.9% respectively.

CONCLUSION

Our 2-year postoperative MCID analysis is the first mental health calculation from an MIS TLIF cohort. We report a 2-year MCID value for PHQ-9 of 3.0 (2.0-4.8). MCID values for mental health instruments are important for determining overall success of lumbar spine surgery.Level of Evidence: 3.

Depression Identified on the Mental Component Score of the Short Form-12 Affects Health Related Quality of Life After Lumbar Decompression Surgery

STUDY DESIGN

This was a retrospective comparative study.

OBJECTIVE

The goal of this study was to further elucidate the relationship between preoperative depression and patient-reported outcome measurements (PROMs) following lumbar decompression surgery.

SUMMARY OF BACKGROUND DATA

The impact of preoperative depression on PROMs after lumbar decompression surgery is not well established.

METHODS

Patients undergoing lumbar decompression between 1 and 3 levels were retrospectively identified. Patients were split into 2 groups using a preoperative Mental Component Score (MCS)-12 threshold score of 45.6 or 35.0 to identify those with and without depressive symptoms. In addition, patients were also split based on a pre-existing diagnosis of depression in the medical chart. Absolute PROM scores, the recovery ratio and the percent of patients achieving minimum clinically important difference between groups were compared, and a multiple linear regression analysis was performed.

RESULTS

A total of 184 patients were included, with 125 (67.9%) in the MCS-12 >45.6 group and 59 (32.1%) in the MCS-12 ≤45.6 group. The MCS-12 ≤45.6 and MCS<35.0 group had worse baseline Oswestry Disability Index (ODI) (P<0.001 for both) and Visual Analogue Scale Leg (P=0.018 and 0.024, respectively) scores. The MCS ≤45.6 group had greater disability postoperatively in terms of SF-12 Physical Component Score (PCS-12) (39.1 vs. 43.1, P=0.015) and ODI (26.6 vs. 17.8, P=0.006). Using regression analysis, having a baseline MCS-12 scores ≤45.6 before surgical intervention was a significant predictor of worse improvement in terms of PCS-12 [β=-4.548 (-7.567 to -1.530), P=0.003] and ODI [β=8.234 (1.433, 15.035), P=0.010] scores than the MCS-12 >45.6 group.

CONCLUSION

Although all patients showed improved in all PROMs after surgery, those with MCS-12 ≤45.6 showed less improvement in PCS-12 and ODI scores.

Combined Depression and Anxiety Influence Patient-Reported Outcomes after Lumbar Fusion

BACKGROUND

Currently, no studies have assessed what effect the presence of both anxiety and depression may have on patient-reported outcome measurements (PROMs) compared to patients with a single or no mental health diagnosis.

METHODS

Patients undergoing 1- to 3-level lumbar fusion at a single academic hospital were retrospectively queried. Anyone with depression and/or anxiety was identified using an existing clinical diagnosis in the medical chart. Patients were separated into 3 groups: no depression or anxiety (NDA), depression or anxiety alone (DOA), and combined depression and anxiety (DAA). Absolute PROMs, recovery ratios, and the percentage of patients achieving minimal clinically important difference (% MCID) between groups were compared using univariate and multivariate analysis.

RESULTS

Of the 391 patients included in the cohort, 323 (82.6%) were in the NDA group, 37 (9.5%) in the DOA group, and 31 (7.9%) in the DAA group. Patients in the DAA group had significantly worse outcome scores before and after surgery with respect to Short Form-12 mental component score (MCS-12) and Oswestry Disability Index (ODI) scores (P <.001); however, the change in PROMs, recovery ratio, % MCID were not found to be significantly different between groups. Using multivariate analysis, the DAA group was found to be an independent predictor of worse improvement in MCS-12 and ODI scores (P = .026 and P = .001, respectively).

CONCLUSIONS

Patients with combined anxiety and depression fared worse with respect to disability before and after surgery compared to patients with a single diagnosis or no mental health diagnosis; however, there were no significant differences in recovery ratio or % MCID.

LEVEL OF EVIDENCE

3.

CLINICAL RELEVANCE

Combined anxiety and depression may predict less improvement in MCS-12 and ODI after lumbar arthrodesis compared with single or no mental health diagnosis.

Preoperative Mental Health Component Scoring Is Related to Patient Reported Outcomes Following Lumbar Fusion

STUDY DESIGN

Retrospective cohort review.

OBJECTIVE

The objective of this study was to identify depression using the Mental Component Score (MCS-12) of the Short Form-12 (SF-12) survey and to correlate with patient outcomes.

SUMMARY OF BACKGROUND DATA

The impact of preexisting depressive symptoms on health-care related quality of life (HRQOL) outcomes following lumbar spine fusion is not well understood.

METHODS

Patients undergoing lumbar fusion between one to three levels at a single center, academic hospital were retrospectively identified. Patients under the age of 18 years and those undergoing surgery for infection, trauma, tumor, or revision, and less than 1-year follow-up were excluded. Patients with depressive symptoms were identified using an existing clinical diagnosis or a score of MCS-12 less than or equal to 45.6 on the preoperative SF-12 survey. Absolute HRQOL scores, the recovery ratio (RR) and the percent of patients achieving minimum clinically important difference (MCID) between groups were compared, and a multiple linear regression analysis was performed.

RESULTS

A total of 391 patients were included in the total cohort, with 123 (31.5%) patients reporting symptoms of depression based on MCS-12 and 268 (68.5%) without these symptoms. The low MCS-12 group was found to have significantly worse preoperative Oswestry disability index (ODI), visual analogue scale back pain (VAS Back) and visual analogue scale leg pain (VAS Leg) scores, and postoperative SF-12 physical component score (PCS-12), ODI, VAS Back, and VAS Leg pain scores (P < 0.05) than the non-depressed group. Finally, multiple linear regression analysis revealed preoperative depression to be a significant predictor of worse outcomes after lumbar fusion.

CONCLUSION

Patients with depressive symptoms, identified with an MCS-12 cutoff below 45.6, were found to have significantly greater disability in a variety of HRQOL domains at baseline and postoperative measurement, and demonstrated less improvement in all outcome domains included in the analysis compared with patients without depression. However, while the improvement was less, even the low MCS-12 cohort demonstrated statistically significant improvement in all HRQOL outcome measures after surgery.

LEVEL OF EVIDENCE

3.

Are Outcomes of Anterior Cervical Discectomy and Fusion Influenced by Presurgical Depression Symptoms on the Mental Component Score of the Short Form-12 Survey?

STUDY DESIGN

Retrospective comparative study.

OBJECTIVE

The purpose of this study was to investigate whether preoperative depressive symptoms, measured by mental component score of the Short Form-12 survey (MCS-12), influence patient-reported outcome measurements (PROMs) following an anterior cervical discectomy and fusion (ACDF) surgery for cervical degeneration.

SUMMARY OF BACKGROUND DATA

There is a paucity of literature regarding preoperative depression and PROMs following ACDF surgery for cervical degenerative disease.

METHODS

Patients who underwent an ACDF for degenerative cervical pathology were identified. A score of 45.6 on the MCS-12 was used as the threshold for depression symptoms, and patients were divided into two groups based on this value: depression (MCS-12 ≤45.6) and nondepression (MCS-12 >45.6) groups. Outcomes including Neck Disability Index (NDI), physical component score of the Short Form-12 survey (PCS-12), and Visual Analogue Scale Neck (VAS Neck), and Arm (VAS Arm) pain scores were evaluated using independent sample t test, recovery ratios, percentage of patients reaching the minimum clinically important difference, and multiple linear regression - controlling for factors such as age, sex, and BMI.

RESULTS

The depression group was found to have significantly worse baseline pain and disability than the nondepression group in NDI (P < 0.001), VAS Neck pain (P < 0.001), and VAS Arm pain (P < 0.001) scores. Postoperatively, both groups improved to a similar amount with surgery based on the recovery ratio analysis. The depression group continued to have worse scores than the nondepression group in NDI (P = 0.010), PCS-12 (P = 0.026), and VAS Arm pain (P = 0.001) scores. Depression was not a significant predictor of change in any PROMs based on regression analysis.

CONCLUSION

Patients who presented with preoperative depression reported more pain and disability symptoms preoperatively and postoperatively; however, both groups achieved similar degrees of improvement.

LEVEL OF EVIDENCE

3.

Patterns of Depressive Symptoms Before and After Surgery for Osteoarthritis: A Descriptive Study

Objective

To examine patterns of depressive symptoms before and over the year following osteoarthritis (OA) surgery, stratified by joint and postsurgical outcome.

Methods

Participants were hip (n = 287), knee (n = 360), and lumbar spine (n = 100) OA patients scheduled for joint replacement or decompression surgery with or without fusion. One pre‐ and 4 postsurgery questionnaires were completed. Depressive symptoms were quantified using the Hospital Anxiety and Depression Scale (HADS). One‐year outcomes were based on Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain scores for hip and knee patients and Oswestry Disability Index (ODI) scores for spine patients and were categorized as “worse” (top score tertile) vs. “better” outcomes (first, second tertiles). Plots over time were generated by joint and outcome: 1) mean pain/disability and depression scores and 2) percentage of patients meeting HADS cut‐off for depression “caseness,” reporting depression diagnosis and treatment.

Results

There were notable decreases in depression scores for patients with better outcomes. For those with worse outcomes, decreases were smaller for hip patients and were not significant for knee and spine patients. Among those with poorer outcomes, 25% of spine and knee patients were depression “cases” pre‐ and postsurgery; an additional 16% of spine and 10% of knee patients developed new “caseness” postsurgery. The proportion of these patients deemed depression cases by score was much higher than the proportion reporting diagnosis/treatment.

Conclusion

Although depressive symptoms decrease overall in OA patients postsurgery, degrees of change vary by joint and surgical outcome. Greater attention to mental health postsurgery is warranted and may lead to improved surgical outcomes, particularly among knee and spine patients.

Cortical Reorganizations for Recovery from Depressive State After Spinal Decompression Surgery

BACKGROUND

Depressed mood following neuronal damage not only impedes functional recovery but also negatively affects quality of life for many patients. Depressed patients with cervical myelopathy often show improvement in both mood and motor function after spinal decompression surgery; however, the neural mechanism underlying this psychological benefit from surgery remains unclear. The aim of this study was to clarify the brain sites that relate to alleviation of depression after spinal decompression surgery.

METHODS

We compared brain activity of patients with cervical myelopathy (n = 6) with healthy participants (n = 5) using functional magnetic resonance imaging. We then analyzed functional magnetic resonance imaging data to find the brain regions that correlated with depression severity (n = 12; 6 preoperative patients and 6 postoperative patients) and compared preoperative imaging data with postoperative imaging data from patients.

RESULTS

Spinal decompression surgery alleviated depression and diminished anterior cingulate cortex activity. Simultaneously, supplementary motor area activity, which was increased in patients with myelopathy compared with control subjects, was diminished after surgery.

CONCLUSIONS

Traditionally, surgical indications for myelopathy are determined by the severity of sensorimotor symptoms without considering psychological symptoms. We anticipate our results will lead to more informed surgical decisions for cervical spondylosis myelopathy.