Racial Disparities in Surgical Outcomes After Spine Surgery: An ACS-NSQIP Analysis

Community-level Socioeconomic Status Is a Poor Predictor of Outcomes Following Lumbar and Cervical Spine Surgery

STUDY DESIGN

Retrospective Cohort study.

OBJECTIVE

Our objective was to compare 3 socioeconomic status (SES) indexes and evaluate associations with outcomes after anterior cervical discectomy and fusion (ACDF) or lumbar fusion.

BACKGROUND DATA

Socioeconomic disparities affect patients' baseline health and clinical outcomes following spine surgery. It is still unclear whether community-level indexes are accurate surrogates for patients' socioeconomic status (SES) and whether they are predictive of postoperative outcomes.

METHODS

Adult patients undergoing ACDF (N=1189) or lumbar fusion (N=1136) from 2014 to 2020 at an urban tertiary medical center were retrospectively identified. Patient characteristics, patient-reported outcomes (PROMs), and surgical outcomes (90-day readmissions, complications, and nonhome discharge) were collected from the electronic medical record. SES was extracted from 3 indexes (Area Deprivation Index, Social Vulnerability Index, and Distressed Communities Index). Patients were classified into SES quartiles for bivariate and multivariate regression analysis. We utilized Youden's index to construct receiver operating characteristic curves for all surgical outcomes using indexes as continuous variables.

RESULTS

Preoperatively, lumbar fusion patients in the poorest ADI community exhibited the greatest ODI ( P =0.001) and in the poorest DCI and SVI communities exhibited worse VAS back ( P <0.001 and 0.002, respectively). Preoperatively, ACDF patients in the lowest DCI community had significantly worse MCS-12, VAS neck, and NDI, and in the poorest ADI community had worse MCS-12 and NDI. There were no differences in the magnitude of improvement for any PROM. All indexes performed poorly at predicting surgical outcomes (AUC: 0.467-0.636, all P >0.05).

CONCLUSIONS

Community-wide SES indexes are not accurate proxies for individual SES. While patients from poorer communities present with worse symptoms, community-level SES is not associated with overall outcomes following spine fusion. Patient-specific factors should be employed when attempting to stratify patients based on SES given the inherent limitations present with these indexes.

LEVEL OF EVIDENCE

Level III.

Trends and Rates of Reporting of Race, Ethnicity, and Social Determinants of Health in Spine Surgery Randomized Clinical Trials: A Systematic Review

STUDY DESIGN

A systematic review.

OBJECTIVE

We characterized the rates of sociodemographic data and social determinants of health (SDOH) reported in spinal surgery randomized control trials (RCTs) and the association between these RCTs' characteristics and their rates of reporting on race, ethnicity, and SDOH variables.

SUMMARY OF BACKGROUND DATA

Although numerous institutions maintain guidelines and recommendations regarding the inclusion and reporting of sociodemographic and SDOH variables in RCTs, the proportion of studies that ultimately report such information is unclear, particularly in spine surgery.

MATERIALS AND METHODS

We searched the MEDLINE, PubMed, and Embase databases for published results from spinal surgery RCTs from January 2002 through December 2022, and screened studies according to prespecified inclusion criteria regarding analysis and reporting of sociodemographic and SDOH variables.

RESULTS

We analyzed 421 studies. Ninety-six studies (22.8%) reported race, ethnicity, or SDOH covariates. On multivariate analysis, study size [rate ratio (RR)=1.18; 95% CI, 1.06-1.32], public/institutional funding (RR=2.28; 95% CI, 1.29-4.04), and private funding (RR=3.27; 95% CI, 1.87-5.74) were significantly associated with reporting race, ethnicity, or SDOH variables. Study size (RR=1.26; 95% CI, 1.07-1.48) and North American region (RR=21.84; CI, 5.04-94.64) were associated with a higher probability of reporting race and/or ethnicity. Finally, study size (RR=1.27; 95% CI, 1.10-1.46), public/institutional funding (RR=2.68; 95% CI, 1.33-5.39), focus on rehabilitation/therapy intervention (RR=2.70; 95% CI, 1.40-5.21), and nonblinded study groups (RR=2.70; 95% CI, 1.40-5.21) were associated with significantly higher probability of reporting employment status.

CONCLUSION

Rates of reporting race, ethnicity, and SDOH variables were lower in the spinal surgery RCTs in our study than in RCTs in other medical disciplines. These reporting rates did not increase over a 20-year period. Trial characteristics significantly associated with higher rates of reporting were larger study size, North American region, private or public funding, and a focus on behavioral/rehabilitation interventions.

LEVEL OF EVIDENCE

Level III.

Racial disparities in anterior cervical discectomy and fusion: an analysis of 67,621 patients

BACKGROUND CONTEXT

Racial disparities have been demonstrated in the analysis of perioperative outcomes in minority populations in the field of spine surgery when compared to nonminorities. However, there are limited studies investigating the role of racial disparities in cervical spine surgery in a recent, large patient sample.

PURPOSE

We assessed race and ethnicity as an independent risk factor in outcome disparities following anterior cervical discectomy and fusion (ACDF) among Black or African American (AA), Asian or Pacific Islander (AP), Hispanic (HA), and Native American or Alaska Native (NA) patients compared to White or Caucasian (CA) patients.

STUDY DESIGN/SETTING

A retrospective cohort, large multicenter database study.

PATIENT SAMPLE

The American College of Surgeons National Surgical Quality Improvement Program database was queried for ACDFs from 2011 to 2021 by Common Procedural Terminology codes (22551, 22552, 22585, and 22554). Patients were categorized into five cohorts based on race and ethnicity: Asian American or Pacific Islander, Black or African American, Hispanic, Native American or Alaskan Native, and White or Caucasian.

OUTCOME MEASURES

The outcome measures for this study were surgical complications, perioperative, and postoperative outcomes within 30-days postoperative.

METHODS

Baseline characteristics were analyzed using analysis of variance (ANOVA) for continuous variables or chi-squared test for categorical variables with Bonferroni correction. Controlling for racial demographic and comorbidity differences via model selection by Akaike information criterion by backward stepwise regression, race and ethnicity were isolated as possible independent risk factors for short-term patient outcomes.

RESULTS

67621 patients (54679 CA, 7358 AA, 1429 AP, 399 NA, and 3756 HA) were included in this study. AA race was an independent risk factor for medical complications (OR: 1.330, 95% CI [1.137-1.549], p < .001), operative time (β: 12.162 minutes, 95% CI [10.565-13.758], p < .001), length of stay (β: 0.514 days, 95% CI [0.431-0.597], p < .001), postoperative discharge time (β: 0.439 days, 95% CI [0.388-0.491], p < 0.001), 30-day reoperation (OR: 1.379, 95% CI [1.142-1.654], p < .001), and a nonhome discharge destination (OR: 2.256, 95% CI [2.022-2.514], p < .001). AP race was an independent risk factor for operative time (β: 14.293 minutes, 95% CI [10.854-17.732], p < .001). HA ethnicity was an independent risk factor for a nonhome discharge destination (OR: 1.395, 95% CI [1.171-1.652], p < .001).

CONCLUSIONS

Compared to CA patients, AA, AP, HA, and NA ACDF patients experience greater comorbidity burden and/or unfavorable 30-day surgical outcomes. These findings support the need for the exploration of interdisciplinary care focused on addressing known causes of disparities in minority patients. Future studies should account for social determinants of health by race and ethnicity to identify additional factors that may contribute to higher rates of complications.

Exploring social vulnerability in National Health Safety Network surgical site infections

OBJECTIVE

To assess the association between social vulnerability index (SVI) and surgical site infections (SSIs) using National Healthcare Safety Network (NHSN) criteria.

DESIGN

Retrospective cohort study between August 1, 2022, and August 31, 2023.

SETTING

In total, 20 acute care hospitals in the Southeast United States.

PATIENTS

Totally, 23,768 total hip arthroplasty, total knee arthroplasty, abdominal hysterectomy, colon, and spinal fusion surgeries in 22,239 patients were included. Procedures with infection present at the time of surgery or incomplete geographic tracking data were excluded.

METHODS

Patient addresses as noted in the electronic health record were geocoded to determine census tract of residence and determine SVI. Demographic and clinical data were linked with SVI scores. SSIs were identified according to NHSN criteria. SVI was categorized into quartiles, and logistic regression was used to evaluate the association between SVI quartile (overall and for each SVI theme) and SSI risk. Subgroup analyses by procedure type and race were performed. Multivariable models of the association between overall SVI and SSI were adjusted for demographic and clinical factors.

RESULTS

Patients in the top SVI quartiles had significantly higher odds of developing SSIs after adjusting for other clinical and demographic factors. Increased risk was found for socioeconomic status and household characteristics themes, but not for the racial/ethnic minority theme. Association between SVI and SSI risk varied by type of surgery.

CONCLUSIONS

Living in an area with a higher SVI is associated with increased SSI risk. Targeted interventions are needed to mitigate these disparities and improve outcomes.

Spine Surgery Outcomes in Patients With Limited English Proficiency

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

The purpose of this study is to investigate the impact of language-discordant spine care. Specifically, do non-English speakers (NES) experience (1) increased length of stay? (2) increased rates of complications (ie, intra/perioperative complications, revision surgery, reoperation)?

BACKGROUND

To provide the best care, there exists a growing focus on understanding which patient groups may be at greater risk for poorer outcomes. In the current body of orthopedic and spine literature, there is little data regarding outcomes for patients where there is language discordance between the physician and patient.

PATIENTS AND METHODS

This is a retrospective cohort study. Patients who underwent spine surgery at a single institution between 2017 and 2023 were included. Translator usage was used as a proxy for poor English language proficiency. Patient demographic and outcome data were collected from the electronic medical record. Patients were matched on surgical and demographic factors and analyzed for outcome variables. Multivariable logistic regressions were run to assess variables associated with poor outcomes.

RESULTS

A total of 214 NES and 9217 English speakers (ES) were reviewed. The final matched cohort resulted in 158 NES and 313 ES with no differences in demographic data. NES patients had significantly more postoperative visits (2.19 vs 1.73; P < 0.001) and increased readmission rates (0.96% vs 4.43%; P = 0.033). On multivariable analysis, NES were predictive of readmission (OR = 4.22; P = 0.039).

CONCLUSION

Patients with low English proficiency experienced significantly higher rates of readmissions following spine surgery. These patients may benefit from increased and more effective preoperative and postoperative communication.

LEVEL OF EVIDENCE

Level IV.

In Patients With Rotator Cuff Tears, Female, Hispanic, African American, Asian, Socially Deprived, Federally Insured, and Uninsured Patients Are Less Commonly Treated Surgically

PURPOSE

To evaluate socioeconomic factors affecting whether a patient undergoes rotator cuff repair after a diagnosis of a rotator cuff tear.

METHODS

From 2009 through 2018, claims for adult (≥18 years of age) patients who were diagnosed with a primary rotator cuff injury were identified in the New York Statewide Planning and Research Cooperative System (SPARCS) database via International Classification of Diseases (ICD)-9th Revision-Clinical Modification (CM) and ICD-10-CM diagnostic codes. SPARCS is a comprehensive all-payer database collecting all inpatient and outpatient pre-adjudicated claims in New York. ICD-9-CM and ICD-10-CM codes were used to identify the initial diagnosis for each patient. Current Procedural Terminology codes were used to identify subsequent rotator cuff surgery. The procedures identified were linked with the initial diagnosis, and patients were noted as either having or not having rotator cuff surgery. Logistic regression analysis was performed for variables including age, sex, race, Social Deprivation Index (SDI), Charlson Comorbidity Index, and primary insurance type to determine the effect of patient factors on the likelihood of having surgery after a diagnosis of rotator cuff injury.

RESULTS

Of the 67,584 rotator cuff patients included in the analysis, 19,770 (29.3%) of the patients underwent surgical intervention. From the logistic regression, females relative to males (odds ratio [OR] = 0.798, P < .0001), increased SDI (OR = 0.994, p < .0001), African American compared with White race (OR = 0.694, P < .0001), Asian compared with White (OR = 0.832, P < .0001), Hispanic compared with White (OR = 0.693, P < .0001), other race (OR = 0.58, P < .0001), those with Medicare (OR = 0.601, P < .0001) or Medicaid (OR = 0.614, P < .0001) relative to private insurance, and self-pay relative to private insurance (OR = 0.727, P < .0001) were all associated with decreased odds of undergoing rotator cuff surgery. Older patients (OR = 1.012, P < .0001) and Workers' Compensation relative to private insurance (OR = 1.664, P < .0001) had increased odds of undergoing surgery.

CONCLUSIONS

The results of the current study identified disparities in the likelihood of undergoing rotator cuff repair after a diagnosis of a rotator cuff tear based on patient demographic and socioeconomic factors. Individuals with higher SDI; African American, Asian, Hispanic, or other non-White races; and those with Medicare, Medicaid, or self-pay insurance had decreased odds of surgery, whereas older age and Workers' Compensation insurance were associated with increased odds of undergoing surgery.

LEVEL OF EVIDENCE

Level IV, retrospective case series.

Increased Time to Fixation After Traumatic Spinal Cord Injury Influenced by Race and Insurance Status

STUDY DESIGN

Retrospective Cohort Study.

OBJECTIVES

Although the optimal timing of surgical intervention for traumatic spinal cord injury (TSCI) is controversial, early intervention has been recognized as being beneficial in several studies. The objective of this study was to evaluate the socioeconomic factors that may delay time to surgical fixation in the management of TSCI.

METHODS

The present study utilized the Trauma Quality Improvement Program (TQIP) dataset to identify patients aged greater than 18 undergoing spinal fusion for TSCI from 2007-2016. Patients were divided into subgroups based on race and insurance types. Multivariable linear regression was used to compare time to procedure based on race and payer type while adjusting for demographic and injury-specific factors. Significance was set at P < .05.

RESULTS

Using multivariable analysis, Hispanic and Black patients were associated with significantly increased time to fixation of 12.1 h (95% CI 5.5-18.7, P < .001), and 20.1 h (95% CI 12.1-28.1, P < .001), respectively compared to White patients. Other cohorts based on racial status did not have significantly different times to fixation (P > .05). Medicaid was associated with an increased time to fixation compared to private insurance (11.6 h, 95% CI 3.9-19.2, P = .003).

CONCLUSIONS

Black and Hispanic race and Medicaid were associated with statistically significant increases in time to fixation following TSCI, potentially compromising quality of patient care and resulting in poorer outcomes. More research is needed to elucidate this relationship and ensure equitable care is being delivered.

Lumbar Fusion and Decompression in American Indian, Alaskan Native, Native Hawaiian, and Pacific Islander Populations: Healthcare Disparities in Spine Surgery

INTRODUCTION

Racial disparities in surgical outcomes are well documented, yet data on American Indian/Alaskan Native (AI/AN) and Native Hawaiian/Pacific Islander (NH/PI) populations remain limited. This study examines disparities in 30-day outcomes following lumbar decompression and fusion in these underrepresented groups.

MATERIALS AND METHODS

A retrospective analysis was conducted using the American College of Surgeons National Surgical Quality Improvement Program database (2017-2020). Patients undergoing lumbar decompression and fusion were identified via current procedural terminology codes. Multivariable logistic regression models adjusted for demographic and clinical factors assessed associations between race/ethnicity and postoperative outcomes, including readmission, complications, reoperation, and non-home discharge. Adjusted odds ratios (AOR) with 95% confidence intervals (CI) were reported.

RESULTS

Among 113,340 patients, 0.38% (n=429) were AI/AN patients and 0.20% (n=229) were NH/PI patients. Compared to non-Hispanic White patients, AI/AN patients had higher odds of readmission (AOR: 1.023, 95% CI: 1.003-1.043, p=0.026) and complications (AOR: 1.030, 95% CI: 1.004-1.056, p=0.023). NH/PI patients had increased odds of readmission (AOR: 1.033, 95% CI: 1.006-1.062, p=0.018), major complications (AOR: 1.029, 95% CI: 1.007-1.051, p=0.009), and reoperation (AOR: 1.035, 95% CI: 1.014-1.057, p=0.001).

CONCLUSIONS

AI/AN and NH/PI patients face higher risks of adverse postoperative outcomes following lumbar spine surgery. Targeted interventions and increased inclusion in surgical disparities research are needed to improve equity in spine care.

The Effect of Race and Social Vulnerability on the Management of Thumb Carpometacarpal Osteoarthritis

Introduction Thumb carpometacarpal (CMC) osteoarthritis is one of the most common hand arthropathies. There is significant variability in treatment, and understanding how race and social vulnerability impact treatment decisions is essential for equitable care. The purpose of this study is to examine the effect of race and social vulnerability on the management of patients with thumb CMC osteoarthritis. Methods A retrospective review of 270 patients presenting to one community-based health system for CMC osteoarthritis from December 2014 to February 2023 was performed. Patient demographics, comorbidities, patient-reported outcomes, social vulnerability index (SVI), and Eaton-Littler classification were collected. Patients were classified by race and SVI. The primary outcome of interest was CMC arthroplasty. Secondary outcomes included non-operative treatment and time to surgery. Results On average, non-White patients were younger (p=0.033), had increased BMI (p=0.001), and were more likely females (p=0.002). Additionally, non-White patients were more socially vulnerable overall than White patients (p<0.001). Non-White patients had a higher rate of steroid injection (p=0.018), a lower rate of splinting (p<0.001), and a lower rate of CMC arthroplasty (21.5% vs. 35.6%; p=0.038). On multivariate analysis, non-White patients were 2.17 (p=0.035) times less likely to have CMC arthroplasty than White patients. Conclusions Non-White and higher social vulnerability patients are less likely to receive a splint and proceed to CMC arthroplasty. On multivariate analysis, the White race patients were predictive of CMC arthroplasty. On multivariate analysis, White race patients were associated with increased odds of CMC arthroplasty. These findings highlight the association between socioeconomic and racial factors and treatment decisions, suggesting a need for targeted strategies to ensure equitable care.

Socioeconomic Status Impacts Length of Stay and Nonhome Discharge Disposition After Posterior Cervical Decompression and Fusion

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

To examine how community-level economic disadvantage impacts short-term outcomes following posterior cervical decompression and fusion (PCDF) for cervical spondylotic myelopathy.

SUMMARY OF BACKGROUND DATA

The effects of socioeconomic factors, measured by the Distress Community Index (DCI), on postoperative outcomes after PCDF are underexplored. By understanding the impact of socioeconomic status (SES) on PCDF outcomes, disparities in care can be addressed.

MATERIALS AND METHODS

Retrospective review of 554 patients who underwent PCDF for cervical spondylotic myelopathy between 2017 and 2022. SES was assessed using DCI obtained from patient zip codes. Patients were stratified into quintiles from Prosperous to Distressed based on DCI. Bivariate analyses and multivariate regressions were performed to evaluate the associations between social determinants of health and surgical outcomes, including length of stay, home discharge, complications, and readmissions.

RESULTS

Patients living in at-risk/distressed communities were more likely to be Black (53.3%). Patients living in at-risk/distressed communities had the longest hospitalization (6.24 d vs. prosperous: 3.92, P =0.006). Significantly less at-risk/distressed patients were discharged home without additional services (37.3% vs. mid-tier: 52.5% vs. comfortable: 53.4% vs. prosperous: 56.4%, P <0.001). On multivariate analysis, residing in an at-risk/distressed community was independently associated with nonhome discharge [odds ratio (OR): 2.28, P =0.007] and longer length of stay (E:1.54, P =0.017).

CONCLUSIONS

Patients from socioeconomically disadvantaged communities experience longer hospitalizations and are more likely to be discharged to a rehabilitation or skilled nursing facility following PCDF. Social and economic barriers should be addressed as part of presurgical counseling and planning in elective spine surgery to mitigate these disparities and improve the quality and value of health care delivery, regardless of socioeconomic status.

Social Vulnerability Index Provides Greater Granularity Compared With the Area Deprivation Index When Assessing Outcomes Following Elective Lumbar Fusion

STUDY DESIGN

Retrospective review of a single institution cohort.

OBJECTIVE

To determine whether area deprivation index (ADI) or social vulnerability index (SVI) is more suitable for evaluating minimum clinically important difference (MCID) achievement following elective lumbar fusion as captured by the Patient-Reported Outcomes Measurement Information System (PROMIS).

SUMMARY OF BACKGROUND DATA

A total of 182 patients who underwent elective one-level to two-level posterior lumbar fusion between January 2015 and September 2021.

MATERIALS AND METHODS

ADI and SVI values were calculated from patient-supplied addresses. Patients were grouped into quartiles based on values; higher quartiles represented greater disadvantage. MCID thresholds for Pain Interference (PI) and Physical Function (PF) were determined through a distribution-based method. Multivariable logistic regression was performed to identify factors impacting MCID attainment. Univariate logistic regression was performed to determine which themes comprising SVI values affected MCID achievement. Statistical significance was set at P <0.05.

RESULTS

Multivariable logistic regression demonstrated that ADI and SVI quartile assignment significantly impacted achievement of MCID for PI ( P =0.04 and 0.01, respectively) and PF ( P =0.03 and 0.02, respectively). Specifically, assignment to the third ADI and SVI quartiles were significant for PI (OR: 0.39 and 0.23, respectively), and PF (OR: 0.24 and 0.22, respectively). Race was not a significant predictor of MCID for either PI or PF. Univariate logistic regression demonstrated that among SVI themes, the socioeconomic status theme significantly affected achievement of MCID for PI ( P =0.01), while the housing type and transportation theme significantly affected achievement of MCID for PF ( P =0.01).

CONCLUSION

ADI and SVI quartile assignment were predictors of MCID achievement. While ADI and SVI may both identify patients at risk for adverse outcomes following lumbar fusion, SVI offers greater granularity in terms of isolating themes of disadvantage impacting MCID achievement.

Racial and Ethnic Disparities in Emergency General Surgery Outcomes Among Older Adult Patients

INTRODUCTION

Racial and ethnic disparities in emergency general surgery (EGS) patients have been well described in the literature. Nonetheless, the burden of these disparities, specifically within the more vulnerable older adult population, is relatively unknown. This study aims to investigate racial and ethnic disparities in clinical outcomes among older adult patients undergoing EGS.

METHODS

This retrospective analysis used data from 2013 to 2019 American College of Surgeons National Surgery Quality Improvement Program database. EGS patients aged 65 y or older were included. Patients were categorized based on their self-reported race and ethnicity. The primary outcomes evaluated were in-hospital mortality, 30-d mortality, and overall morbidity. Multivariable logistic regression was performed to examine the relationship between race/ethnicity and postoperative outcomes while adjusting for relevant factors including age, comorbidities, functional status, preoperative conditions, and surgical procedure.

RESULTS

A total of 54,132 patients were included, of whom 79.8% identified as non-Hispanic White, 9.5% as non-Hispanic Black (NHB), 5.8% as Hispanic, and 4.2% as non-Hispanic Asian. After risk adjustment, compared to non-Hispanic White patients, NHB, non-Hispanic Asian, and Hispanic patients had decreased odds of 30-d mortality. For 30-d readmission and reoperation, differences among groups were comparable. However, NHB patients had significantly increased odds of overall morbidity (adjusted odds ratio, 1.18; 95% confidence interval: 1.10-1.26; P < 0.001) and postoperative complications including sepsis, venous thromboembolism, and unplanned intubation. Hispanic ethnicity was associated with lower odds of postoperative myocardial infarction and stroke.

CONCLUSIONS

Among older adult patients undergoing emergency general surgery, minority patients experienced higher morbidity rates, but paradoxical disparities in mortality were detected. Further research is necessary to identify the cause of these disparities and develop targeted interventions to eliminate them.

Disparities in Surgical Intervention and Health-Related Quality of Life Among Racial/Ethnic Groups With Degenerative Lumbar Spondylolisthesis

BACKGROUND AND OBJECTIVES

Racial and socioeconomic disparities in spine surgery for degenerative lumbar spondylolisthesis persist in the United States, potentially contributing to unequal health-related quality of life (HRQoL) outcomes. This is important as lumbar spondylolisthesis is one of the most common causes of surgical low back pain, and low back pain is the largest disabler of individuals worldwide. Our objective was to assess the relationship between race, socioeconomic factors, treatment utilization, and outcomes in patients with lumbar spondylolisthesis.

METHODS

This cohort study analyzed prospectively collected data from 9941 patients diagnosed with lumbar spondylolisthesis between 2015 and 2020 at 5 academic hospitals. Exposures were race, socioeconomic status, health coverage, and HRQoL measures. Main outcomes and measures included treatment utilization rates between racial groups and the association between race and treatment outcomes using logistic regression, adjusting for patient characteristics, socioeconomic status, health coverage, and HRQoL measures.

RESULTS

Of the 9941 patients included (mean [SD] age, 67.37 [12.40] years; 63% female; 1101 [11.1%] Black, Indigenous, and People of Color [BIPOC]), BIPOC patients were significantly less likely to use surgery than White patients (odds ratio [OR] = 0.68; 95% CI, 0.62-0.75). Furthermore, BIPOC race was associated with significantly lower odds of reaching the minimum clinically important difference for physical function (OR = 0.74; 95% CI, 0.60; 0.91) and pain interference (OR = 0.77; 95% CI, 0.62-0.97). Medicaid beneficiaries were significantly less likely (OR = 0.65; 95% CI, 0.46-0.92) to reach a clinically important improvement in HRQoL when accounting for race.

CONCLUSION

This study found that BIPOC patients were less likely to use spine surgery for degenerative lumbar spondylolisthesis despite reporting higher pain interference, suggesting an association between race and surgical utilization. These disparities may contribute to unequal HRQoL outcomes for patients with lumbar spondylolisthesis and warrant further investigation to address and reduce treatment disparities.

Postoperative racial disparities following spine surgery are less pronounced in the outpatient setting

BACKGROUND CONTEXT

Racial disparities in spine surgery have been thoroughly documented in the inpatient (IP) setting. However, despite an increasing proportion of procedures being performed as same-day surgeries, whether similar differences have developed in the outpatient (OP) setting remains to be elucidated.

PURPOSE

This study aimed to investigate racial differences in postoperative outcomes between Black and White patients following OP and IP lumbar and cervical spine surgery.

STUDY DESIGN/SETTING

Retrospective cohort study.

PATIENT SAMPLE

Patients who underwent IP or OP microdiscectomy, laminectomy, anterior cervical discectomy and fusion (ACDF), or cervical disc replacement (CDR) between 2017 and 2021.

OUTCOME MEASURES

Thirty-day rates of serious and minor adverse events, readmission, reoperation, nonhome discharge, and mortality.

METHODS

A retrospective review of patients who underwent IP or OP microdiscectomy, laminectomy, anterior cervical discectomy and fusion (ACDF), or cervical disc replacement (CDR) between 2017 and 2021 was conducted using the National Surgical Quality Improvement Program (NSQIP) database. Disparities between Black and White patients in (1) adverse event rates, (2) readmission rates, (3) reoperation rates, (4) nonhome discharge rates, (5) mortality rates, (6) operative times, and (7) hospital LOS between Black and White patients were measured and compared between IP and OP surgical settings. Multivariable logistic regression analyses were used to adjust for potential effects of baseline demographic and clinical differences.

RESULTS

Of 81,696 total surgeries, 49,351 (60.4%) were performed as IP and 32,345 (39.6%) were performed as OP procedures. White patients accounted for a greater proportion of IP (88.2% vs 11.8%) and OP (92.7% vs 7.3%) procedures than Black patients. Following IP surgery, Black patients experienced greater odds of serious (OR 1.214, 95% CI 1.077-1.370, p=.002) and minor adverse events (OR 1.377, 95% CI 1.113-1.705, p=.003), readmission (OR 1.284, 95% CI 1.130-1.459, p<.001), reoperation (OR 1.194, 95% CI 1.013-1.407, p=.035), and nonhome discharge (OR 2.304, 95% CI 2.101-2.528, p<.001) after baseline adjustment. Disparities were less prominent in the OP setting, as Black patients exhibited greater odds of readmission (OR 1.341, 95% CI 1.036-1.735, p=.026) but were no more likely than White patients to experience adverse events, reoperation, individual complications, nonhome discharge, or death (p>.050 for all).

CONCLUSIONS

Racial inequality in postoperative complications following spine surgery is evident, however disparities in complication rates are relatively less following OP compared to IP procedures. Further work may be beneficial in elucidating the causes of these differences to better understand and mitigate overall racial disparities within the inpatient setting. These decreased differences may also provide promising indication that progress towards reducing inequality is possible as spine care transitions to the OP setting.

Workman's compensation as exclusion criteria in rotator cuff repair literature - are we inadvertently excluding race?

OBJECTIVE

Despite an equal willingness to participate in clinical trials, there is evidence that several minority populations are systematically under-represented in studies. One potential cause and frequently used exclusionary criterion in orthopedic trials is patients with active workman's compensation (WC) insurance claims. The purpose of this study is to determine demographic differences in patients undergoing arthroscopic rotator cuff repair with commercial and government insurance vs workers compensation claims.

METHODS

This was a retrospective review of patients who underwent primary arthroscopic rotator cuff repair at a single institution in the northeastern United States from 2018 to 2019. Patients undergoing revision cases were excluded. Chart review was used to extract demographic data such as age, gender, insurance, and reported race.

RESULTS

A total of 4553 patient records were reviewed and included. There were 742 WC patients and 3811 non-WC patients. Two hundred and forty-four patients did not report their race. Overall, WC patients differed from non-WC with respect to race (P < 0.001). One hundred and eleven (15.0%) of WC and 293 (7.7%) non-WC patients reported being 'Black' or 'African American' (P = 0.002). This compares to 368 (49.6%) WC and 2788 (73.2%) non-WC patients who reported 'White' (P < 0.001). About 16.8% of WC patients were identified as 'Hispanic or Latino,' compared to 5.2% of non-WC (P < 0.001).

CONCLUSION

African American and Hispanic/Latino patients are over-represented in workman's compensation patient populations relative to non-workman's compensation. Conversely, white patients are over-represented in non-WC patient populations, which serve as the basis for the majority of clinical study populations. Excluding workman's compensation patients from clinical trials may lead to an underrepresentation of African American and Hispanic/Latino patient populations in orthopedic clinical trials. In doing so, the generalizability of the results of rotator cuff repair clinical outcomes research to all races and ethnicities may be compromised.

Racial Disparities in Outcomes Following Surgical Fixation of Traumatic Thoracolumbar Fractures: A National Database Analysis

OBJECTIVE

This study aims to assess race as an independent risk factor for postoperative complications after surgical fixation of traumatic thoracolumbar fractures for African American and Asian American patients compared with White patients.

METHODS

The 2011-2021 American College of Surgeons - National Surgical Quality Improvement Program (ACS-NSQIP) dataset was used to identify patients undergoing fusion surgeries for thoracolumbar spine fractures. Patient comorbidity burden was assessed using a modified 5-item frailty index score (mFI-5). Chi-squared and ANOVA tests were used to compare baseline clinical characteristics between groups. Multivariate analysis was performed to compare African American and Asian American patients with White patients controlling for age, BMI, and American Society of Anesthesiologists (ASA) score.

RESULTS

African American patients experienced longer operative times compared to Asian American and White patients (3.74 ± 1.87 hours vs. 3.04 ± 1.71 hours and 3.48 ± 1.81 hours, P < 0.001). African American and Asian American patients demonstrated higher comorbidity burden with mFI-5>2 compared to White patients (30.7% and 25.6% vs. 19.9%, P < 0.001). African American and Asian American patients had a higher risk of postoperative complications than White patients (22.4% and 20% vs. 19.7%, P < 0.001). African American race was an independent risk factor of postoperative 30-day morbidity (OR 1.19, CI 1.11-1.28, P < 0.001).

CONCLUSIONS

African American and Asian American patients undergoing thoracolumbar fusion surgeries exhibit disproportionate comorbidity burden, longer LOS, and greater postoperative complications compared with White patients. Furthermore, the African American race was associated with an increased rate of 30-day postoperative complications.

The impact of diversity, equity, and inclusion on spinal research - asking different questions

BACKGROUND CONTEXT

In recent years, the field of spine surgery has seen significant advancements in surgical techniques alongside a growing emphasis on diversity, equity, and inclusion (DEI).

PURPOSE

This paper explores the significant impact of DEI on spine surgery, recognizing its potential to drive innovation, improve patient outcomes, and address healthcare disparities.

STUDY DESIGN

Review.

SIGN/SETTING

The review focuses on the impact of DEI on spine surgery, examining how diverse perspectives influence research and practice in the field.

PATIENT SAMPLE

Not applicable.

OUTCOME MEASURES

Not applicable.

METHODS

The review analyzes the role of DEI in driving innovation and improving patient outcomes in spine surgery and discusses ongoing challenges such as unconscious biases and systemic barriers.

RESULTS

Shifting paradigms in research through diverse perspectives is crucial for broadening the scope of inquiry and challenging existing standards. Efforts to promote diversity, including targeted outreach and mentorship initiatives, are essential for cultivating a more inclusive workforce.

CONCLUSIONS

Embracing diverse perspectives and asking unconventional questions are vital for achieving a comprehensive understanding of spinal health and delivering equitable healthcare. Ongoing challenges highlight the need for continued commitment to DEI principles.

Impact of Racial and Socioeconomic Disparities on Access to Interspinous Spacer for Treatment of Lumbar Spinal Stenosis: A Nationwide Medicare Analysis

BACKGROUND

In mild to moderate lumbar spinal stenosis (LSS) where conservative care treatments fail, minimally invasive treatments, such as interspinous spacers without decompression or fusion (ISD), may be appropriate. While previous studies have demonstrated racial and socioeconomic disparities in the surgical treatment of LSS, there are limited data on how those factors impact accessibility to these procedures. This study explored demographic, socioeconomic, and geographic differences in the use of ISD.

METHODS

Using the Medicare 100% files from 2017 through 2022, this retrospective claims analysis identified when and if patients diagnosed with LSS received ISD implantation. Cox proportional hazards regression was used to examine the association between racial and socioeconomic characteristics and the rate of ISD implantation, stratified by geographic region.

RESULTS

A total of 1,316,622 individuals met the inclusion criteria; 4730 (0.4%) underwent ISD implantation, with a mean (standard deviation) time to treatment of 11.9 (13.2) months after diagnosis. The likelihood of ISD implantation was higher for older patients (except for the oldest group), males, those with lower disease burden, and White patients. Cox regression revealed that the associations of racial and socioeconomic factors with ISD implantation varied by U.S. region. In the Midwest and Northeast, lower median household income was associated with a decreased likelihood of ISD implantation regardless of race, while in the South, Black patients were less likely to undergo ISD implantation regardless of income.

CONCLUSIONS

The observed disparities in access to ISD implantation mirror existing trends in surgical interventions for LSS, suggesting further study and interventions are needed to address inequities.

Social determinants of health and disparities in spine surgery: a 10-year analysis of 8,565 cases using ensemble machine learning and multilayer perceptron

BACKGROUND CONTEXT

The influence of SDOH on spine surgery is poorly understood. Historically, researchers commonly focused on the isolated influences of race, insurance status, or income on healthcare outcomes. However, analysis of SDOH is becoming increasingly more nuanced as viewing social factors in aggregate rather than individually may offer more precise estimates of the impact of SDOH on healthcare delivery.

PURPOSE

The aim of this study was to evaluate the effects of patient social history on length of stay (LOS) and readmission within 90 days following spine surgery using ensemble machine learning and multilayer perceptron.

STUDY DESIGN

Retrospective chart review.

PATIENT SAMPLE

8,565 elective and emergency spine surgery cases performed from 2013 to 2023 using our institution's database of longitudinally collected electronic medical record information.

OUTCOMES MEASURES

Patient LOS, discharge disposition, and rate of 90-day readmission.

METHODS

Ensemble machine learning and multilayer perceptron were employed to predict LOS and readmission within 90 days following spine surgery. All other subsequent statistical analysis was performed using SPSS version 28. To further assess correlations among variables, Pearson's correlation tests and multivariate linear regression models were constructed. Independent sample t-tests, paired sample t-tests, one-way analysis of variance (ANOVA) with post-hoc Bonferroni and Tukey corrections, and Pearson's chi-squared test were applied where appropriate for analysis of continuous and categorical variables.

RESULTS

Black patients demonstrated a greater LOS compared to white patients, but race and ethnicity were not significantly associated with 90-day readmission rates. Insured patients had a shorter LOS and lower readmission rates compared to non-insured patients, as did privately insured patients compared to publicly insured patients. Patients discharged home had lower LOS and lower readmission rates, compared to patients discharged to other facilities. Marriage decreased both LOS and readmission rates, underweight patients showcased increased LOS and readmission rates, and religion was shown to impact LOS and readmission rates. When utilizing patient social history, lab values, and medical history, machine learning determined the top 5 most-important variables for prediction of LOS -along with their respective feature importances-to be insurance status (0.166), religion (0.100), ICU status (0.093), antibiotic use (0.061), and case status: elective or urgent (0.055). The top 5 most-important variables for prediction of 90-day readmission-along with their respective feature importances-were insurance status (0.177), religion (0.123), discharge location (0.096), emergency case status (0.064), and history of diabetes (0.041).

CONCLUSIONS

This study highlights that SDOH is influential in determining patient length of stay, discharge disposition, and likelihood of readmission following spine surgery. Machine learning was utilized to accurately predict LOS and 90-day readmission with patient medical history, lab values, and social history, as well as social history alone.

Impact of COVID-19 on Spinal Diagnosis and Procedural Volume in the United States

STUDY DESIGN

Retrospective analysis of a national database.

OBJECTIVES

COVID-19 resulted in the widespread shifting of hospital resources to handle surging COVID-19 cases resulting in the postponement of surgeries, including numerous spine procedures. This study aimed to quantify the impact that COVID-19 had on the number of treated spinal conditions and diagnoses during the pandemic.

METHODS

Using CPT and ICD-10 codes, TriNetX, a national database, was utilized to quantify spine procedures and diagnoses in patients >18 years of age. The period of March 2020-May 2021 was compared to a reference pre-pandemic period of March 2018-May 2019. Each time period was then stratified into four seasons of the year, and the mean average number of procedures per healthcare organization was compared.

RESULTS

In total, 524,394 patient encounters from 53 healthcare organizations were included in the analysis. There were significant decreases in spine procedures and diagnoses during March-May 2020 compared to pre-pandemic levels. Measurable differences were noted for spine procedures during the winter of 2020-2021, including a decrease in lumbar laminectomy and anterior cervical arthrodesis. Comparing the pandemic period to the pre-pandemic period showed significant reductions in most spine procedures and treated diagnoses; however, there was an increase in open repair of thoracic fractures during this period.

CONCLUSIONS

COVID-19 resulted in a widespread decrease in spinal diagnosis and treated conditions. An inverse relationship was observed between new COVID-19 cases and spine procedural volume. Recent increases in procedural volume from pre-pandemic levels are promising signs that the spine surgery community has narrowed the gap in unmet care produced by the pandemic.

Spinal Cord Stimulator Inequities Within the US Military Health System

OBJECTIVES

Although studies have described inequities in spinal cord stimulation (SCS) receipt, there is a lack of information to inform system-level changes to support health care equity. This study evaluated whether Black patients exhaust more treatment options than do White patients, before receiving SCS.

MATERIALS AND METHODS

This retrospective cohort study included claims data of Black and non-Latinx White patients who were active-duty service members or military retirees who received a persistent spinal pain syndrome (PSPS) diagnosis associated with back surgery within the US Military Health System, January 2017 to January 2020 (N = 8753). A generalized linear model examined predictors of SCS receipt within two years of diagnosis, including the interaction between race and number of pain-treatment types received.

RESULTS

In the generalized linear model, Black patients (10.3% [8.7%, 12.0%]) were less likely to receive SCS than were White patients (13.6% [12.7%, 14.6%]) The interaction term was significant; White patients who received zero to three different types of treatments were more likely to receive SCS than were Black patients who received zero to three treatments, whereas Black and White patients who received >three treatments had similar likelihoods of receiving a SCS.

CONCLUSIONS

In a health care system with intended universal access, White patients diagnosed with PSPS tried fewer treatment types before receiving SCS, whereas the number of treatment types tried was not significantly related to SCS receipt in Black patients. Overall, Black patients received SCS less often than did White patients. Findings indicate the need for structured referral pathways, provider evaluation on equity metrics, and top-down support.

Impact of Racial/Ethnic Disparities on Patient-Reported Outcomes Following Cervical Spine Surgery: QOD Analysis

STUDY DESIGN

Retrospective analysis of data from the cervical module of a National Spine Registry, the Quality Outcomes Database.

OBJECTIVE

To examine the association of race and ethnicity with patient-reported outcome measures (PROMs) at one year after cervical spine surgery.

SUMMARY OF BACKGROUND DATA

Evidence suggests that Black individuals are 39% to 44% more likely to have postoperative complications and a prolonged length of stay after cervical spine surgery compared with Whites. The long-term recovery assessed with PROMs after cervical spine surgery among Black, Hispanic, and other non-Hispanic groups ( i.e . Asian) remains unclear.

MATERIALS AND METHODS

PROMs were used to assess disability (neck disability index) and neck/arm pain preoperatively and one-year postoperative. Primary outcomes were disability and pain, and not being satisfied from preoperative to 12 months after surgery. Multivariable logistic and proportional odds regression analyses were used to determine the association of racial/ethnic groups [Hispanic, non-Hispanic White (NHW), non-Hispanic Black (NHB), and non-Hispanic Asian (NHA)] with outcomes after covariate adjustment and to compute the odds of each racial/ethnic group achieving a minimal clinically important difference one-year postoperatively.

RESULTS

On average, the sample of 14,429 participants had significant reductions in pain and disability, and 87% were satisfied at one-year follow-up. Hispanic and NHB patients had higher odds of not being satisfied (40% and 80%) and having worse pain outcomes (30%-70%) compared with NHW. NHB had 50% higher odds of worse disability scores compared with NHW. NHA reported similar disability and neck pain outcomes compared with NHW.

CONCLUSIONS

Hispanic and NHB patients had worse patient-reported outcomes one year after cervical spine surgery compared with NHW individuals, even after adjusting for potential confounders, yet there was no difference in disability and neck pain outcomes reported for NHA patients. This study highlights the need to address inherent racial/ethnic disparities in recovery trajectories following cervical spine surgery.

Addressing the Impact of Race and Ethnicity on Musculoskeletal Spine Care in the United States

➤ Despite being a social construct, race has an impact on outcomes in musculoskeletal spine care.➤ Race is associated with other social determinants of health that may predispose patients to worse outcomes.➤ The musculoskeletal spine literature is limited in its understanding of the causes of race-related outcome trends.➤ Efforts to mitigate race-related disparities in spine care require individual, institutional, and national initiatives.

Sports Medicine Patient Experience: Implicit Bias Mitigation and Communication Strategies

Unconscious bias, also known as implicit bias, is the principal contributor to the perpetuation of discrimination and is a robust determinant of people's decision-making. Unconscious bias occurs despite conscious nonprejudiced intentions and interferes with the actions of the reflective and conscious side. Education and self-awareness about implicit bias and its potentially harmful effects on judgment and behavior may lead individuals to pursue corrective action and follow implicit bias mitigation communication strategies. Team physicians must follow existing communication strategies and guidelines to mitigate unconscious bias and begin an evolution toward nonbiased judgment and decision-making to improve athlete care.

The impact of social determinants of health on early outcomes after adult Chiari surgery

We sought to identify social determinants of health (SDoH) for adult patients undergoing Chiari decompression surgery and to analyze their association with postoperative outcomes, including length of stay (LOS), return to the system within 30 days, and the Chicago Chiari Outcomes Score (CCOS). This is a retrospective study of adult patients who underwent Chiari decompression surgery between June 2021 and January 2023. Data was gathered through electronic medical record review and telephone surveys. Descriptive statistics were used to evaluate demographics of all patients meeting inclusion criteria. Fisher's exact tests and logistic regression were used for data analysis. A total of 37 patients underwent Chiari decompression (23 CCOS/SDoH survey respondents): 48% bony decompression only, 30% bony decompression plus intradural exploration, and 22% occipitocervical fusion. Seven patients (30%) had a LOS > 2 days, 1 patient (4%) required inpatient rehabilitation postoperatively, 4 patients (17%) returned to the system within 30 days, 10 patients (43%) had an extremely favorable CCOS (15-16), and 11 patients (48%) reported interaction with a Chiari support group. Mean follow-up was 9.5 months. Patients with occipitocervical fusion were more likely to have a LOS > 2 days (p = 0.03), patients who exercised ≥ 3 days per week were more likely to have a favorable CCOS (p = 0.04), and patients who participated in a Chiari support group were less likely to have a favorable CCOS (p = 0.03). Chiari decompression plus occipitocervical fusion may be associated with increased LOS. While more frequent exercise may be associated with better post-surgical outcomes, participation in a Chiari support group may be correlated with worse outcomes.

Racial Differences in Perioperative Complications, Readmissions, and Mortalities After Elective Spine Surgery in the United States: A Systematic Review Using AI-Assisted Bibliometric Analysis

STUDY DESIGN

Systematic Review and Meta-analysis.

OBJECTIVES

To evaluate the impact of race on post-operative outcomes and complications following elective spine surgery in the United States.

METHODS

PUBMED, MEDLINE(R), ERIC, EMBASE, and SCOPUS were searched for studies documenting peri-operative events for White and African American (AA) patients following elective spine surgery. Pooled odds ratios were calculated for each 90-day outcome and meta-analyses were performed for 4 peri-operative events and 7 complication categories. Sub-analyses were performed for each outcome on single institution (SI) studies and works that included <100,000 patients.

RESULTS

53 studies (5,589,069 patients, 9.8% AA) were included. Eleven included >100,000 patients. AA patients had increased rates of 90-day readmission (OR 1.33, P = .0001), non-routine discharge (OR 1.71, P = .0001), and mortality (OR 1.66, P = .0003), but not re-operation (OR 1.16, P = .1354). AA patients were more likely to have wound-related complications (OR 1.47, P = .0001) or medical complications (OR 1.35, P = .0006), specifically cardiovascular (OR 1.33, P = .0126), deep vein thrombosis/pulmonary embolism (DVT/PE) (OR 2.22, P = .0188) and genitourinary events (OR 1.17, P = .0343). SI studies could only detect racial differences in re-admissions and non-routine discharges. Studies with <100,000 patients replicated the above findings but found no differences in cardiovascular complications. Disparities in mortality were only detected when all studies were included.

CONCLUSIONS

AA patients faced a greater risk of morbidity across several distinct categories of peri-operative events. SI studies can be underpowered to detect more granular complication types (genitourinary, DVT/PE). Rare events, such as mortality, require larger sample sizes to identify significant racial disparities.

Association Between Race and Short-Term Outcomes Across 3988 Consecutive Single-Level Spinal Fusions

BACKGROUND AND OBJECTIVES

Race has implications for access to medical care. However, the impact of race, after access to care has been attained, remains poorly understood. The objective of this study was to isolate the relationship between race and short-term outcomes across patients undergoing a single, common neurosurgical procedure.

METHODS

In this retrospective cohort study, 3988 consecutive patients undergoing single-level, posterior-only open lumbar fusion at a single, multihospital, academic medical center were enrolled over a 6-year period. Among them, 3406 patients self-identified as White, and 582 patients self-identified as Black. Outcome disparities between all White patients vs all Black patients were estimated using logistic regression. Subsequently, coarsened exact matching controlled for outcome-mitigating factors; White and Black patients were exact-matched 1:1 on key demographic and health characteristics (matched n = 1018). Primary outcomes included 30-day and 90-day hospital readmissions, emergency department (ED) visits, reoperations, mortality, discharge disposition, and intraoperative complication.

RESULTS

Before matching, Black patients experienced increased rate of nonhome discharge, readmissions, ED visits, and reoperations (all P < .001). After exact matching, Black patients were less likely to be discharged to home (odds ratio [OR] 2.68, P < .001) and had higher risk of 30-day and 90-day readmissions (OR 2.24, P < .001; OR 1.91, P < .001; respectively) and ED visits (OR 1.79, P = .017; OR 2.09, P < .001). Black patients did not experience greater risk of intraoperative complication (unintentional durotomy).

CONCLUSION

Between otherwise homogenous spinal fusion cohorts, Black patients experienced unfavorable short-term outcomes. These disparities were not explained by differences in intraoperative complications. Further investigation must characterize and mitigate institutional and societal factors that contribute to outcome disparities.

Lack of race/ethnic minority representation in ulnar collateral ligament reconstruction in baseball athletes: a systematic review

OBJECTIVES

To assess the reporting and representation of ethnic and racial minorities in comparative studies of ulnar collateral ligament (UCL) injuries and treatment in baseball athletes.

METHODS

A systematic review of the literature was conducted using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) reporting guidelines. The literature search was conducted by two independent reviewers using the PubMed, Scopus, and Cochrane Library databases. Studies were included if they were UCL of the elbow clinical comparative studies, including randomized clinical trials, cohort studies, case series, and epidemiological studies. Studies were excluded if they were related to ulnar collateral ligament of the thumb, lateral ulnar collateral ligament of the elbow, biomechanical studies, non-surgical studies, non-baseball studies, and systematic reviews and meta-analyses. The Methodological Index for Non-Randomized Studies (MINORS) criterion was used to assess quality of studies included.

RESULTS

A total of 108 studies were included for analysis, of which only one reported race and ethnicity in their demographics. Additionally, of the 108 studies included, only four reported Country of Origin, a subset of Race and Ethnicity, in their demographics.

CONCLUSION

Race and Ethnicity demographics are scarcely reported in comparative studies evaluating ulnar collateral ligament reconstruction. Future studies evaluating similar populations should strongly consider reporting racial and ethnic demographics as this may provide clarity on any potential effect these might have on post-surgical outcomes, particularly in high-level pitchers.

Hip Arthroscopy Utilization Disparities and Complications Amongst Ethnic Groups

While hip arthroscopy (HA) has increased in recent years, limited data exists regarding utilization and outcomes among racial groups. The National Surgical Quality Improvement Program (NSQIP) database was queried for patients who underwent HA from 2006 to 2017. Patients were stratified into 6 self-reported racial/ethnic categories: White, African American, Hispanic, Asian and Pacific Islander, Native American, and Unknown. Major and minor complications in the 30-day post-operative period were identified. Data were available for 2230 patients who underwent HA. There were significant differences in the proportions of HA procedures when examining by race. White patients comprised 69% of the patient sample, African American patients 5.6%, Hispanic patients 3.9%, Asian patients 2.5%, Native American patients 0.7% and Unknown race/ethnicity patients 18.3% (P < .05). HA utilization increased significantly over time by all groups but remained low among ethnic minorities compared to the White cohort. Overall, major, and minor 30-day complication rates were 1.3%, 0.5%, and 0.9%, respectively. Although African American and Hispanic patients had higher overall complication rates than White patients, the differences were not statistically significant. Surgeons should be aware of the underutilization of HA among racial/ethnic minorities, and further studies evaluating insurance status and access to care are needed.

Are There Racial Differences in the Rate of Surgical Site Infection Based on Surgical Subspecialty?

Background: Surgical site infection (SSI) is a common, morbid post-operative complication. We hypothesized the presence of racial differences in SSI rates, comparing black/African American (BAA) to white non-Hispanic (WNH) patients. Patients and Methods: Using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database (2017), BAA and WNH surgery patients across 10 surgical specialties were identified: general surgery (GS), vascular surgery (VS), cardiac surgery (CS), thoracic surgery (TS), orthopedics (OS), neurosurgery (NS), urology (US), otolaryngology (ENT), plastic surgery (PS), and gynecology (GYN). The primary outcome was SSI rate (superficial, deep incisional, or organ/space). The secondary outcome was rate of non-surgical infection. Pearson χ2 and Fisher exact tests were used to test group differences of categorical variables. Continuous variables were tested with the Student t-test, or Mann-Whitney U test, with statistical significance set at a value of p < 0.05. Multivariable logistic regression models were conducted to analyze the association between race/ethnicity and the infection outcomes. Results: A total of 740,144 patients were included: 99,425 (13.4%) BAA and 640,749 (86.6%) WNH, distributed as follows; 32,2976 GS, 17,6175 OS, 44,383 VS, 2,227 CS, 9,645 TS, 42,298 NS, 42,726 US, 18,518 ENT, 20,709 PS, and 60,517 GYN cases. Surgical site infection rates were higher among WNH in GS (4.4% vs. 4.1%; p = 0.003) and TS (3.1% vs. 1.7%; p = 0.015); lower in VS (3.2% vs. 4.4%; p < 0.001), OS (1.2% vs.1.6%; p < 0.001), and GYN (2.4% vs. 3%; p < 0.001); and similar between WNH and BAA in ENT (1.8% vs 1.8%; p = 0.76), and US (1.9% vs. 1.9%; p = 0.90). Non-surgical infection was higher in BAA in NS (3.2% vs. 2.5%; p = 0.003), and higher in WNH in GYN (2.6% vs. 2%; p < 0.001), OS (1.7% vs. 1.1%; p < 0.001), US (4.4% vs. 3.6%; p = 0.014), and VS (3.4% vs. 2.6%; p < 0.001). Conclusions: Variation exists in SSI rates between WNH and BAA patients among surgical subspecialties. Further research is required to understand these differences and address racial disparities in outcomes.

Racial Disparities and Surgical Outcomes After Anterior Cervical Discectomy and Fusion: National Surgical Quality Improvement Program Analysis 2015-2020

BACKGROUND

Our objective was to assess the effect of race on outcomes in patients undergoing anterior cervical discectomy and fusion (ACDF).

METHODS

We identified 57,913 adult patients who underwent elective ACDF spine surgery from 2015 to 2020. Data were extracted from the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database. Demographics, comorbidities, perioperative course, and 30-day postoperative outcomes were stratified by race.

RESULTS

A total of 57,913 patients, white (n = 49,016), African American (AA; n = 7200), Native American (NA; n = 565), and Asian (n = 1132) underwent ACDF fusion surgery. AA patients had higher comorbidities, including diabetes (24.7%), dyspnea (5.9%), and hypertension (61.6%) compared with the other groups (P < 0.001). NA and AA were higher tobacco users, (33.1%) and (28.7%), respectively (P < 0.001). Most of the patients reported in this dataset had single-level surgeries. AAs had a longer average hospital stay (2.51±7.31 days) and operative time (144.13±82.26 min) (P < 0.001). Lower risk of superficial surgical site infection (adjusted odds ratio [ORadj], 0.41; 95% confidence interval [CI], 0.22-0.77; P = 0.005) and greater risk of reintubation (ORadj, 1.65; 95% CI, 1.25-2.17; P < 0.001), pulmonary embolism (ORadj, 1.88; 95% CI, 1.27-2.79; P = 0.001), renal insufficiency (ORadj, 3.15; 95% CI, 1.38-7.20; P = 0.006), and return to the operating room (ORadj, 1.41; 95% CI, 1.18-1.65; P < 0.001 were reported in AAs compared with whites. NAs showed an increased risk of superficial surgical site infection compared with whites (ORadj, 2.59; 95% CI, 1.05-6.36; P = 0.037).

CONCLUSIONS

Racial disparities were found to independently affect rates of complications after surgery for ACDF.

Hospital spending and length of stay attributable to perioperative adverse events for inpatient hip, knee, and spine surgery: a retrospective cohort study

BACKGROUND

The incremental hospital cost and length of stay (LOS) associated with adverse events (AEs) has not been well characterized for planned and unplanned inpatient spine, hip, and knee surgeries.

METHODS

Retrospective cohort study of hip, knee, and spine surgeries at an academic hospital in 2011-2012. Adverse events were prospectively collected for 3,063 inpatient cases using the Orthopaedic Surgical AdVerse Event Severity (OrthoSAVES) reporting tool. Case costs were retrospectively obtained and inflated to equivalent 2021 CAD values. Propensity score methodology was used to assess the cost and LOS attributable to AEs, controlling for a variety of patient and procedure factors.

RESULTS

The sample was 55% female and average age was 64; 79% of admissions were planned. 30% of cases had one or more AEs (82% had low-severity AEs at worst). The incremental cost and LOS attributable to AEs were $8,500 (95% confidence interval [CI]: 5100-11,800) and 4.7 days (95% CI: 3.4-5.9) per admission. This corresponded to a cumulative $7.8 M (14% of total cohort cost) and 4,290 bed-days (19% of cohort bed-days) attributable to AEs. Incremental estimates varied substantially by (1) admission type (planned: $4,700/2.4 days; unplanned: $20,700/11.5 days), (2) AE severity (low: $4,000/3.1 days; high: $29,500/11.9 days), and (3) anatomical region (spine: $19,800/9 days; hip: $4,900/3.8 days; knee: $1,900/1.5 days). Despite only 21% of admissions being unplanned, adverse events in these admissions cumulatively accounted for 59% of costs and 62% of bed-days attributable to AEs.

CONCLUSIONS

This study comprehensively demonstrates the considerable cost and LOS attributable to AEs in orthopaedic and spine admissions. In particular, the incremental cost and LOS attributable to AEs per admission were almost five times as high among unplanned admissions compared to planned admissions. Mitigation strategies focused on unplanned surgeries may result in significant quality improvement and cost savings in the healthcare system.

Racial disparities in readmission rates following surgical treatment of pediatric developmental dysplasia of the hip

PURPOSE

Across orthopedic subspecialties, significant racial disparities have been identified with regard to postoperative outcomes. Despite these findings among adult patients, the literature assessing these disparities within pediatric orthopedics is limited. The purpose of this study was to determine the independent predictors for unplanned readmission following surgical treatment of developmental dysplasia of the hip.

METHODS

Pediatric patients undergoing hip dysplasia surgery from 2012 to 2019 were identified in the National Surgical Quality Improvement Program-Pediatric database. Two patient groups were defined: patients who had unplanned hospital readmission within 30 days of surgery and patients who were not readmitted. Clinical characteristics assessed included gender, race, and American Society of Anesthesiologists (ASA) class. Risk factors for complications were assessed using bivariate and multivariate analysis.

RESULTS

Of 6561 pediatric patients undergoing surgical treatment for hip dysplasia, 540 (8.2%) had unplanned readmission. On bivariate analysis, non-white race (Black, Asian, Hispanic, American Indian, and Native Hawaiian), an ASA class of III, IV, or V, pulmonary, renal, neurological, and gastrointestinal comorbidities, as well as immune disease, steroid use, and nutritional support were significantly associated with unplanned readmission (p < 0.05 for all). After controlling for confounding variables on multivariate analysis, non-white race (OR 1.46; p = 0.042) and ASA class of III-V (OR 2.21; p = 0.002) were found to be independent predictors for readmission.

CONCLUSION

Clinicians should be advised of the increased readmission rates observed in non-white patients and those of higher ASA scores. Further work is needed to combat existing disparities within pediatric orthopedics.

Racial Disparities in Clinical Outcomes of Emergency Colectomies for Diverticulitis

OBJECTIVES

The literature suggests that there are ongoing racial disparities in healthcare outcomes between patients in White and non-White populations. As such, we examined the outcomes of patients who underwent an emergency colectomy for diverticulitis.

METHODS

We identified 4841 White and 590 non-White patients, which include Black/African American and Asian patients, using the 2016-2019 American College of Surgeons National Surgical Quality Improvement Program databases. We compared Black/African American and Asian patients with White patients for differences in surgical outcomes.

RESULTS

Non-White patients had more comorbidities than White patients (P < 0.05). These patients underwent longer operations, developed more postoperative complications, and were more likely to have lengths of stay >30 days. When controlling for all of the covariates in multivariate logistic regression models, White race was independently associated with a 22.14% lower odds of a hospital stay >30 days compared with non-White patients (P = 0.001).

CONCLUSIONS

In this study, non-White patients developed more complications than did White patients and had longer hospitalizations. These disparities represent a more complex societal issue that cannot be managed perioperatively alone.

Improving Racial and Ethnic Disparities in Outpatient Anterior Cervical Discectomy and Fusion Driven by Increasing Utilization of Ambulatory Surgical Centers in New York State

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

The purpose of this study was to assess trends in disparities in utilization of hospital outpatient departments (HOPDs) and ambulatory surgical centers (ASCs) for outpatient ACDF (OP-ACDF) between White, Black, Hispanic, and Asian/Pacific Islander patients from 2015 to 2018 in New York State.

SUMMARY OF BACKGROUND DATA

Racial and ethnic disparities within the field of spine surgery have been thoroughly documented. To date, it remains unknown how these disparities have evolved in the outpatient setting alongside the rapid emergence of ASCs and whether restrictive patterns of access to these outpatient centers exist by race and ethnicity.

MATERIALS AND METHODS

We conducted a retrospective review from 2015 to 2018 using the Healthcare Cost and Utilization Project (HCUP) New York State Ambulatory Database. Differences in utilization rates for OP-ACDF were assessed and trended over time by race and ethnicity for both HOPDs and freestanding ASCs. Poisson regression was used to evaluate the association between utilization rates for OP-ACDF and race/ethnicity.

RESULTS

Between 2015 and 2018, Black, Hispanic, and Asian patients were less likely to undergo OP-ACDF compared with White patients in New York State. However, the magnitude of these disparities lessened over time, as Black, Hispanic, and Asian patients had greater relative increases in utilization of HOPDs and ASCs for ACDF when compared with White patients ( Ptrend <0.001). The magnitude of the increase in freestanding ASC utilization was such that minority patients had higher ACDF utilization rates in freestanding ASCs by 2018 ( P <0.001).

CONCLUSIONS

We found evidence of improving racial disparities in the relative utilization of outpatient ACDF in New York State. The increase in access to outpatient ACDF appeared to be driven by an increasing number of patients undergoing ACDF in freestanding ASCs in large metropolitan areas. These improving disparities are encouraging and contrast previously documented inequalities in inpatient spine surgery.

LEVEL OF EVIDENCE

III.

Post-operative outcomes in Indigenous patients in North America and Oceania: A systematic review and meta-analysis

Indigenous Peoples across North America and Oceania experience worse health outcomes compared to non-Indigenous people, including increased post-operative mortality. Several gaps in data exist regarding global differences in surgical morbidity and mortality for Indigenous populations based on geographic locations and across surgical specialties. The aim of this study is to evaluate disparities in post-operative outcomes between Indigenous and non-Indigenous populations. This systematic review and meta-analysis was conducted in accordance with PRISMA and MOOSE guidelines. Eight electronic databases were searched with no language restriction. Studies reporting on Indigenous populations outside of Canada, the USA, New Zealand, or Australia, or on interventional procedures were excluded. Primary outcomes were post-operative morbidity and mortality. Secondary outcomes included reoperations, readmission rates, and length of hospital stay. The Newcastle Ottawa Scale was used for quality assessment. Eighty-four unique observational studies were included in this review. Of these, 67 studies were included in the meta-analysis (Oceania n = 31, North America n = 36). Extensive heterogeneity existed among studies and 50% were of poor quality. Indigenous patients had 1.26 times odds of post-operative morbidity (OR = 1.26, 95% CI: 1.10-1.44, p<0.01) and 1.34 times odds of post-operative infection (OR = 1.34, 95% CI: 1.12-1.59, p<0.01) than non-Indigenous patients. Indigenous patients also had 1.33 times odds of reoperation (OR = 1.33, 95% CI: 1.02-1.74, p = 0.04). In conclusion, we found that Indigenous patients in North American and Oceania experience significantly poorer surgical outcomes than their non-Indigenous counterparts. Additionally, there is a low proportion of high-quality research focusing on assessing surgical equity for Indigenous patients in these regions, despite multiple international and national calls to action for reconciliation and decolonization to improve quality surgical care for Indigenous populations.

Racial Disparities in General Surgery Outcomes

INTRODUCTION

While disparities in Black and Hispanic and Latino patients undergoing general surgeries are well described, most analyses leave out Asian, American Indian or Alaskan Native (AIAN), and native Hawaiian or Pacific Islander patients. This study identified general surgery outcomes for each racial group in the National Surgical Quality Improvement Program.

METHODS

National Surgical Quality Improvement Program was queried to identify all procedures conducted by a general surgeon from 2017 to 2020 (n = 2,664,197). Multivariable regression models were used to investigate the impact of race and ethnicity on 30-day mortality, readmission, reoperation, major and minor medical complications, and non-home discharge destinations. Adjusted odds ratios (AOR) and 95% confidence intervals were calculated.

RESULTS

Compared to non-Hispanic White patients, Black patients had higher odds of readmission and reoperation, and Hispanic and Latino patients had higher odds of major and minor complications. AIAN patients had higher odds of mortality (AOR: 1.003 (1.002-1.005), P < 0.001), major complication (AOR: 1.013 (1.006-1.020), P < 0.001), reoperation (AOR: 1.009, (1.005-1.013), P < 0.001), and non-home discharge destination (AOR: 1.006 (1.001-1.012), P = 0.025), while native Hawaiian or Pacific Islander patients had lower odds of readmission (AOR: 0.991 (0.983-0.999), P = 0.035) and non-home discharge destination (AOR: 0.983 (0.975-0.990), P < 0.001) compared to non-Hispanic White patients. Asian patients had lower odds of each adverse outcome.

CONCLUSIONS

Black, Hispanic and Latino, and AIAN patients are at higher odds for poor postoperative results than non-Hispanic White patients. AIANs had some of the highest odds of mortality, major complications, reoperation, and non-home discharge. Social health determinants and policy adjustments must be targeted to ensure optimal operative results for all patients.

Racial Disparities in the 30-Day Outcomes of Gender-affirming Chest Surgeries

OBJECTIVE

To determine if and how race impacts the 30-day outcomes of gender-affirming chest surgeries.

BACKGROUND

Little is currently known about how race may affect the outcomes of gender-affirming surgeries.

METHODS

We analyzed data from the National Surgical Quality Improvement Program (NSQIP) database of 30-day complications of gender-affirming chest surgeries from 2005 to 2019. All participants had a postoperative diagnosis code for gender dysphoria and at least one procedure code for bilateral mastectomy, bilateral breast reduction, or bilateral augmentation mammoplasty. Differences by racial group were analyzed through Pearson χ 2 and multivariate logistic regression.

RESULTS

There were no racial differences in the all-complication rates for both transmasculine and transfeminine individuals undergoing gender-affirming chest surgeries. Black patients undergoing masculinizing procedures were significantly more likely to experience mild systemic [adjusted odds ratio (aOR): 2.17, 95% confidence interval (CI): 1.02-4.65] and severe complications (aOR: 5.63, 95% CI: 1.99-15.98) when compared with White patients. Patients of unknown race had increased odds of experiencing severe complications for masculinizing procedures compared with White patients (aOR: 3.77, 95% CI: 1.39-10.24). Transmasculine individuals whose race was unknown were 1.98 times more likely (95% CI: 1.03-3.81) to experience an unplanned reoperation compared with White individuals. Black transfeminine individuals were 10.50 times more likely to experience an unplanned reoperation (95% CI: 1.15-95.51) than their White peers.

CONCLUSIONS

Although overall complications are uncommon, there is evidence to suggest that there are racial disparities in certain 30-day outcomes of gender-affirming chest surgeries.

Racial Disparities in Perioperative Morbidity Following Oncological Spine Surgery

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

To assess the impact of race on complications following spinal tumor surgery.

METHODS

Adults with cancer who underwent spine tumor surgery were identified in the American College of Surgeons National Surgical Quality Improvement Program datasets from 2012 to 2016. Clavien-Dindo Grade I-II (minor complications) and Clavien-Dindo Grade III-V (major complications including 30-day mortality) complications were compared between non-Hispanic Whites (NHW) and Black patients. A multivariable analysis was also conducted.

RESULTS

Of 1,226 identified patients, 85.9% were NHW (n = 1,053) and 14.1% were Black (n = 173). The overall rate of Grade I-II complications was 16.2%; 15.1% for NHW patients and 23.1% for Black patients (P = .008). On multivariable analysis, Black patients had significantly higher odds of having a minor complication (OR 1.87; 95% CI, 1.16-3.01; P = .010). On the other hand, the overall rate of Grade III-V complications was 13.3%; 12.5% for NHW patients and 16.2% for Black patients (P = .187). On multivariable analysis, Black race was not independently associated with major complications (OR 1.26; 95% CI, 0.71-2.23; P = .430). Median length of stay was 8 days (IQR 5-13) for NHW patients and 10 days (IQR 6-15) for Black patients (P = .011).

CONCLUSION

Black patients who underwent metastatic spinal tumor surgery were at a significantly increased risk of perioperative morbidity compared to NHW patients independent of baseline and operative characteristics. Major complications did not differ between groups. Race should be further studied in the context of metastatic spine disease to improve our understanding of these disparities.

The digital transformation of surgery

Rapid advances in digital technology and artificial intelligence in recent years have already begun to transform many industries, and are beginning to make headway into healthcare. There is tremendous potential for new digital technologies to improve the care of surgical patients. In this piece, we highlight work being done to advance surgical care using machine learning, computer vision, wearable devices, remote patient monitoring, and virtual and augmented reality. We describe ways these technologies can be used to improve the practice of surgery, and discuss opportunities and challenges to their widespread adoption and use in operating rooms and at the bedside.

Disparities in Hand Surgery Exist in Unexpected Populations

Background The purpose of our study is to investigate disparities in the patient populations and outcomes of carpal tunnel release (CTR) and trigger finger release (TFR).  Methods A retrospective review of 777 CTR and 395 TFR patients from May 2021 to August 2022 was completed. The shortened form of the Disabilities of the Arm, Shoulder, and Hand (DASH) scores (QuickDASH) was recorded to evaluate physical function preoperatively and at one and three months postoperatively. This study was deemed institutional review board-exempt by the institutional clinical research committee. Results Compared to CTR, TFR patients resided in zip codes with higher levels of social vulnerability across dimensions of 'household composition and disability' (p=0.018) and 'minority status and language' (p=0.043). When analyzing QuickDASH scores by demographics and procedure, preoperative scores were statistically significantly higher for non-married (p=0.002), White (p=0.003), and female sex (p=0.001) CTR patients. Further, one-month postoperative scores were statistically higher for White and non-married CTR patients (0.016 and 0.015, respectively). At three months postoperatively, female and non-married patients had statistically significant higher scores (0.010 and 0.037, respectively). In TFR patients, one-month postoperative QuickDASH scores for White and female patients were statistically significantly higher (0.018 and 0.007, respectively). There were no significant differences in QuickDASH scores between rural and non-rural patients, household income (HHI) above or below the median, or the Social Vulnerability Index (SVI) dimensions.  Conclusion Our study found marital status, sex, and race were associated with disparities in pre-and postoperative physical function in patients undergoing carpal tunnel or trigger finger release. However, future studies are warranted to confirm and develop solutions to disparities within this population.

Reporting demographics in randomized control trials in spine surgery - we must do better

BACKGROUND CONTEXT

Demographic factors contribute significantly to spine surgery outcomes. Although race and ethnicity are not proxies for disease states, the intersection between these patient characteristics and socioeconomic status significantly impact patient outcomes.

PURPOSE

The purpose of this study is to investigate the frequency of demographic reporting and analysis in randomized controlled clinical trials (RCTs) published in the three highest impact spine journals.

STUDY DESIGN

Systematic review.

PATIENT SAMPLE

We analyzed 278 randomized control trials published in The Spine Journal, Spine, and Journal of Neurosurgery: Spine between January 2012 - January 2022.

OUTCOME MEASURES

Extracted manuscript characteristics included the frequency of demographic reporting, sample size, and demographic composition of studies.

METHODS

We conducted a systematic review of RCTs published between January 2012 - January 2022 in the three highest impact factor spine journals in 2021: The Spine Journal, Spine, and Journal of Neurosurgery: Spine. We determined if age, gender, BMI, race, and ethnicity were reported and analyzed for each study. The overall frequency of demographic reporting was assessed, and the reporting trends were analyzed for each individual year and journal. Among studies that did report demographics, the populations were analyzed in comparison to the national population per United States (US) census reports. Studies were evaluated for bias using Cochrane risk-of-bias.

RESULTS

Our search identified 278 RCTs for inclusion. 166 were published in Spine, 65 in The Spine Journal, and 47 in Journal of Neurosurgery: Spine. Only 9.35% (N=26) and 3.9% (N=11) of studies reported race and ethnicity, respectively. Demographic reporting frequency did not vary based on the publishing journal. Reporting of age and BMI increased over time, but reporting of race and ethnicity did not. Among RCTs that reported race, 88% were conducted in the US, and 85.71% of the patients in these US studies were White. White subjects were overly represented compared to the US population (85.71% vs. 61.63%, p<.001), and non-White or Black patients were most underrepresented (2.89% vs. 25.96%, p<.001).

CONCLUSIONS

RCTs published in the three highest impact factor spine journals failed to frequently report patient race or ethnicity. Among studies published in the US, study populations are increasingly represented by non-Hispanic White patients. As we strive to care for an increasingly diverse population and reduce disparities to care, spine surgeons must do a better job reporting these variables to increase the external validity and generalizability of RCTs.

Readmission and Resource Utilization in Patients From Socioeconomically Distressed Communities Following Lumbar Fusion

STUDY DESIGN

Retrospective cohort study.

OBJECTIVE

To determine whether: (1) patients from communities of socioeconomic distress have higher readmission rates or postoperative healthcare resource utilization and (2) there are differences in patient-reported outcome measures (PROMs) based on socioeconomic distress.

SUMMARY OF BACKGROUND DATA

Socioeconomic disparities affect health outcomes, but little evidence exists demonstrating the impact of socioeconomic distress on postoperative resource utilization or PROMs.

METHODS

A retrospective review was performed on patients who underwent lumbar fusion at a single tertiary academic center from January 1, 2011 to June 30, 2021. Patients were classified according to the distressed communities index. Hospital readmission, postoperative prescriptions, patient telephone calls, follow-up office visits, and PROMs were recorded. Multivariate analysis with logistic, negative binomial regression or Poisson regression were used to investigate the effects of distressed communities index on postoperative resource utilization. Alpha was set at P <0.05.

RESULTS

A total of 4472 patients were included for analysis. Readmission risk was higher in distressed communities (odds ratio, 1.75; 95% confidence interval, 1.06-2.87; P =0.028). Patients from distressed communities (odds ratio, 3.94; 95% confidence interval, 1.60-9.72; P =0.003) were also more likely to be readmitted for medical, but not surgical causes ( P =0.514), and distressed patients had worse preoperative (visual analog-scale Back, P <0.001) and postoperative (Oswestry disability index, P =0.048; visual analog-scale Leg, P =0.013) PROMs, while maintaining similar magnitudes of clinical improvement. Patients from distressed communities were more likely to be discharged to a nursing facility and inpatient rehabilitation unit (25.5%, P =0.032). The race was not independently associated with readmissions ( P =0.228).

CONCLUSION

Socioeconomic distress is associated with increased postoperative health resource utilization. Patients from distressed communities have worse preoperative PROMs, but the overall magnitude of improvement is similar across all classes.

LEVEL OF EVIDENCE

Level IV.

Utilization Trends of Intraoperative Neuromonitoring for Anterior Cervical Discectomy and Fusion in New York State

STUDY DESIGN

Retrospective cohort analysis.

OBJECTIVE

To elucidate trends in the utilization of intraoperative neuromonitoring (IONM) during anterior cervical discectomy and fusion (ACDF) procedures in NY state using the Statewide Planning and Research Cooperative System and to determine if utilization of IONM resulted in a reduction in postoperative neurological deficits.

SUMMARY OF BACKGROUND DATA

IONM has been available to spinal surgeons for several decades. It has become increasingly prevalent in all facets of spinal surgery including elective ACDF procedures. The utility of IONM for preventing a neurological deficit in elective spine procedures has recently been called into question.

MATERIALS AND METHODS

The Statewide Planning and Research Cooperative System database were accessed to perform a retrospective cohort study comparing monitored versus unmonitored ACDF procedures between 2007 and 2018 as defined by the International Classification of Disease-9 and 10 Procedural Coding System (ICD-9 PCS, ICD-10 PCS) codes. Patient demographics, medical history, surgical intervention, pertinent in-hospital events, and urban versus rural medical centers (as defined by the United States Office of Management and Budget) were recorded. Propensity-score-matched comparisons were used to identify factors related to the utilization of IONM and risk factors for neurological deficits after elective ACDF.

RESULTS

A total of 70,838 [15,092 monitored (21.3%) and 55,746 (78.7%) unmonitored] patients' data were extracted. The utilization of IONM since 2007 has increased in a linear manner from 0.9% of cases in 2007 to 36.7% by 2018. Overall, baseline characteristics of patients who were monitored during cases differed significantly from unmonitored patients in age, race/ethnicity, insurance type, presence of myelopathy or radiculopathy, and Charlson Comorbidity Index; however, only race/ethnicity was statistically significant when analyzed using propensity-score-matched. When comparing urban and rural medical centers, there is a significant lag in the adoption of the technology with no monitored cases in rural centers until 2012 with significant fluctuations in utilization compared with steadily increasing utilization among urban centers. From 2017 to 2018, reporting of neurological deficits after surgery resembled literature-established norms. Pooled analysis of these years revealed that the incidence of neurological complications occurred more frequently in monitored cases than in unmonitored (3.0% vs. 1.4%, P < 0.001).

CONCLUSIONS

The utility of IONM for elective ACDF remains uncertain; however, it continues to gain popularity for routine cases. For medical centers that lack similar resources to centers in more densely populated regions of NY state, reliable access to this technology is not a certainty. In our analysis of intraoperative neurological complications, it seems that IONM is not protective against neurological injury.

Comorbidity data collection across different spine registries: an evidence map

INTRODUCTION

Comorbidities are significant patient factors that contribute to outcomes after surgery. There is highly variable collection of this information across the literature. To help guide the systematic collection of best practice data, the Australian Spine Registry conducted an evidence map to investigate (i) what comorbidities are collected by spine registries, (ii) how they are collected and (iii) the compliance and completeness in collecting comorbidity data.

METHOD

A literature search was performed to identify published studies of adult spine registry data reporting comorbidities. In addition, targeted questionnaires were sent to existing global spine registries to identify the maximum number of relevant results to build the evidence map.

RESULTS

Thirty-six full-text studies met the inclusion criteria. There was substantial variation in the reporting of comorbidity data; 55% of studies reported comorbidity collection, but only 25% reported the data collection method and 20% reported use of a comorbidity index. The variation in the literature was confirmed with responses from 50% of the invited registries (7/14). Of seven, three use a recognised comorbidity index and the extent and methods of comorbidity collection varied by registry.

CONCLUSION

This evidence map identified variations in the methodology, data points and reporting of comorbidity collection in studies using spine registry data, with no consistent approach. A standardised set of comorbidities and data collection methods would encourage collaboration and data comparisons between patient cohorts and could facilitate improved patient outcomes following spine surgery by allowing data comparisons and predictive modelling of risk factors.

Diversity in Orthopaedic Surgery Medical Device Clinical Trials: An Analysis of the Food and Drug Administration Safety and Innovation Act

INTRODUCTION

Demographic factors contribute markedly to orthopaedic surgery outcomes. However, women and minorities have been historically excluded from clinical trials. The United States passed the Safety and Innovation Act (Food and Drug Administration Safety and Innovation Act [FDA-SIA]) in 2012 to increase study diversity and mandate reporting of certain demographics. The purpose of this study was to investigate demographic reporting and analysis among high-risk orthopaedic medical device trials and evaluate the effectiveness of the FDA-SIA in increasing diversity of study enrollment.

METHODS

The premarket approval database was queried for all original submissions approved by the Orthopedic Advisory Committee from January 1, 2003, to July 1, 2022. Study demographics were recorded. Weighted means of race, ethnicity, and sex were compared before and after FDA-SIA implementation with the US population.

RESULTS

We identified 51 orthopaedic trials with unique study data. Most Food and Drug Administration device trials reported age (98.0%) and sex (96.1%), but only 49.0% and 37.3% reported race and ethnicity, respectively. Only 23 studies analyzed sex, six analyzed race, and two analyzed ethnicity. Compared with the US population, participants were overwhelmingly White (91.36% vs. 61.63%, P < 0.001) with a significant underrepresentation of Black (3.65% vs. 12.41%, P = 0.008), Asian (0.86% vs. 4.8%, P = 0.030), and Hispanic participants (3.02% vs. 18.73%, P < 0.001) before 2013. The FDA-SIA increased female patient enrollment (58.99% vs. 47.96%, P = 0.021) but did not increase the enrollment of racial or ethnic minorities.

CONCLUSION

Despite efforts to increase the generalizability of studies within the FDA-SIA, orthopaedic medical devices still fail to enroll diverse populations and provide demographic subgroup analysis. The study populations within these trials do not represent the populations for whom these devices will be indicated in the community. The federal government must play a stronger role in mandating study diversity, enforcing appropriate statistical analysis of the demographic subgroups, and executing measures to ensure compliance.

LEVEL OF EVIDENCE

I.

Race and Socioeconomic Status Are Associated With Inferior Patient-Reported Outcome Measures Following Rotator Cuff Repair

PURPOSE

To investigate the impact social determinants of health (SDOH) have on National Institutes of Health Patient-Reported Outcomes Measurement Information System (PROMIS) computer adaptive test scores and postoperative health care use in patients who undergo rotator cuff repair (RCR).

METHODS

All patients who underwent RCR surgery by 3 shoulder and/or sports medicine fellowship-trained orthopaedic surgeons between July 2017 and January 2020 were included. The electronic medical record (EMR) was used to identify SDOH for each patient. PROMIS computer adaptive test measures of Upper Extremity function, Pain Interference, and Depression were completed preoperatively and postoperatively (6 months and 1 year). Postoperative health care use (clinical visits, virtual encounters, imaging encounters, and physical therapy visits) were recorded as well. Univariate associations, multiple linear regressions, and Wilcoxon rank-sum tests were used to analyze mean differences between patient groups based on SDOH.

RESULTS

Three hundred thirty-eight patients who underwent RCR were included. Patients who were Black, in lower median household income quartiles, had public insurance, and female reported lower PROMIS scores compared with their counterparts. Smokers and White patients attended fewer postoperative office visits whereas Black patients had more physical therapy and nonvisit encounters compared with their respective counterparts.

CONCLUSIONS

Black race and lower socioeconomic status are associated with worse function and pain outcomes post-RCR compared with White race. Similarly, Black race and positive smoking status are associated with differential use of health care following RCR. Further attention may be required for these patients to address health care disparities.

LEVEL OF EVIDENCE

III, retrospective cohort study.

Do Patient Demographic and Socioeconomic Factors Influence Surgical Treatment Rates After ACL Injury?

INTRODUCTION

Anterior cruciate ligament (ACL) injuries may be managed nonoperatively in certain patients and injury patterns; however, complete ACL ruptures are commonly reconstructed to restore anterior and lateral rotatory stability of the knee. While ACL reconstruction is well-studied, the literature is sparse with regard to which socioeconomic patient factors are associated with patients undergoing ACL reconstruction rather than nonoperative management after diagnosis of an ACL injury. The current study seeks to evaluate this relationship between patient demographics as well as socioeconomic factors and the rate of surgery following ACL injuries.

METHODS

Patients ≤65 years of age with a primary ACL injury between 2011 and 2018 were retrospectively identified in the New York Statewide Planning and Research Cooperative System database. International Classification of Disease 9/10 and Current Procedural Terminology codes were used to identify these patients and their subsequent ACL reconstructions. Logistic regression was performed to determine the effect of patient factors on the likelihood of having surgery after the diagnosis of an ACL injury.

RESULTS

Compared to White patients, African American patients were significantly less likely to undergo ACL reconstruction following an ACL injury (OR=0.65, 95% CI, 0.573-0.726). Patients older than 35 had decreased odds of undergoing ACL reconstruction compared to younger patients, with patients 55-64 having the lowest odds (OR=0.166, 95% CI, 0.136-0.203). Patients with Medicaid (OR=0.84, 95% CI, 0.757-0.933) or self-pay insurance (OR=0.67, 95% CI, 0.565-0.793), and those with worker's compensation (OR=0.715, 95% CI, 0.621-0.823) had decreased odds of undergoing ACL reconstruction relative to patients with private insurance. Patients with higher Social Deprivation Index (SDI) were significantly more likely to be treated nonoperatively after ACL injuries compared to those with lower SDI (mean nonoperative SDI score, 61, operative SDI, 56, P<0.0001).

DISCUSSION

In patients with ACL injuries, there are socioeconomic and patient-related factors that are associated with increased odds of undergoing ACL reconstruction. These factors are important to recognize as they represent a source of potential inequality in access to care and an area with potential for improvement.

Do Community-level Disadvantages Account for Racial Disparities in the Safety of Spine Surgery? A Large Database Study Based on Medicare Claims

BACKGROUND

Racial health disparities across orthopaedic surgery subspecialties, including spine surgery, are well established. However, the underlying causes of these disparities, particularly relating to social determinants of health, are not fully understood.

QUESTIONS/PURPOSES

(1) Is there a racial difference in 90-day mortality, readmission, and complication rates ("safety outcomes") among Medicare beneficiaries after spine surgery? (2) To what degree does the Centers for Disease Control and Prevention Social Vulnerability Index (SVI), a community-level marker of social determinants of health, account for racial disparities in safety outcomes?

METHODS

To examine racial differences in 90-day mortality, readmission, and complications after spine surgery, we retrospectively identified all 419,533 Medicare beneficiaries aged 65 or older who underwent inpatient spine surgery from 2015 to 2019; we excluded 181,588 patients with endstage renal disease or Social Security disability insurance entitlements, who were on Medicare HMO, or who had missing SVI data. Because of the nearly universal coverage of those age 65 or older, Medicare data offer a large cohort that is broadly generalizable, provides improved precision for relatively rare safety outcomes, and is free of confounding from differential insurance access across races. The Master Beneficiary Summary File includes enrollees' self-reported race based on a restrictive list of mutually exclusive options. Even though this does not fully capture the entirety of racial diversity, it is self-reported by patients. Identification of spine surgery was based on five Diagnosis Related Groups labeled "cervical fusion," "fusion, except cervical," "anterior-posterior combined fusion," "complex fusion," and "back or neck, except fusion." Although heterogeneous, these cohorts do not reflect inherently different biology that would lead us to expect differences in safety outcomes by race. We report specific types of complications that did and did not involve readmission. Although complications vary in severity, we report them as composite measures while being cognizant of the inherent limitations of making inferences based on aggregate measures. The SVI was chosen as the mediating variable because it aggregates important social determinants of health and has been shown to be a marker of high risk of poor public health response to external stressors. Patients were categorized into three groups based on a ranking of the four SVI themes: socioeconomic status, household composition, minority status and language, and housing and transportation. We report the "average race effects" among Black patients compared with White patients using nearest-neighbor Mahalanobis matching by age, gender, comorbidities, and spine surgery type. Mahalanobis matching provided the best balance among propensity-type matching methods. Before matching, Black patients in Medicare undergoing spine surgery were disproportionately younger with more comorbidities and were less likely to undergo cervical fusion. To estimate the contribution of the SVI on racial disparities in safety outcomes, we report the average race effect between models with and without the addition of the four SVI themes.

RESULTS

After matching on age, gender, comorbidities, and spine surgery type, Black patients were on average more likely than White patients to be readmitted (difference of 1.5% [95% CI 0.9% to 2.1%]; p < 0.001) and have complications with (difference of 1.2% [95% CI 0.5% to 1.9%]; p = 0.002) or without readmission (difference of 3.6% [95% CI 2.9% to 4.3%]; p < 0.001). Adding the SVI to the model attenuated these differences, explaining 17% to 49% of the racial differences in safety, depending on the outcome. An observed higher rate of 90-day mortality among Black patients was explained entirely by matching using non-SVI patient demographics (difference of 0.00% [95% CI -0.3% to 0.3%]; p = 0.99). However, even after adjusting for the SVI, Black patients had more readmissions and complications.

CONCLUSION

Social disadvantage explains up to nearly 50% of the disparities in safety outcomes between Black and White Medicare patients after spine surgery. This argument highlights an important contribution of socioeconomic circumstances and societal barriers to achieving equal outcomes. But even after accounting for the SVI, there remained persistently unequal safety outcomes among Black patients compared with White patients, suggesting that other unmeasured factors contribute to the disparities. This is consistent with evidence documenting Black patients' disadvantages within a system of seemingly equal access and resources. Research on racial health disparities in orthopaedics should account for the SVI to avoid suggesting that race causes any observed differences in complications among patients when other factors related to social deprivation are more likely to be determinative. Focused social policies aiming to rectify structural disadvantages faced by disadvantaged communities may lead to a meaningful reduction in racial health disparities.

LEVEL OF EVIDENCE

Level III, therapeutic study.