Patient characteristics and patterns of use for lumbar spine radiographs: results from the Veterans Health Study

Racial and ethnic differences in the use of lumbar imaging, opioid analgesics and spinal surgery for low back pain: A systematic review and meta-analysis

BACKGROUND AND OBJECTIVE

There is a substantial gap between evidence and clinical care for low back pain (LBP) worldwide despite recommendations of best practice specified in clinical practice guidelines. The aim of this systematic review was to identify disparities associated with race or ethnicity in the use of lumbar imaging, opioid analgesics, and spinal surgery in people with LBP.

DATABASES AND DATA TREATMENT

We included observational studies which compared the use of lumbar imaging, opioid analgesics, and spinal surgery for the management of non-serious LBP between people from different racial/ethnic populations. We searched in MEDLINE, EMBASE and CINAHL from January 2000 to June 2021. Risk of bias of included studies was appraised in six domains. For each type of care, we pooled data stratified by race and ethnicity using random effects models.

RESULTS

We identified 13 eligible studies; all conducted in the United States. Hispanic/Latino (OR 0.69, 95%CI 0.49-0.96) and Black/African American (OR 0.59, 95%CI 0.46-0.75) people with LBP were less likely to be prescribed opioid analgesics than White people. Black/African Americans were less likely to undergo or be recommended spinal surgery for LBP (OR 0.47, 95%CI 0.33-0.67) than White people. There was a lack of high certainty evidence on racial/ethnic disparities in the use of lumbar imaging.

CONCLUSION

This review reveals lower rate of the use of guideline-discordant care, especially opioid prescription and spinal surgery, in racial/ethnic minority populations with LBP in the United States. Future studies in other countries evaluating care equity for LBP are warranted. PROSPERO Registration ID: CRD42021260668.

SIGNIFICANCE

This systematic review and meta-analysis revealed that people with low back pain from the minority racial/ethnic backgrounds were less likely to be prescribed opioid analgesics and undergo spinal surgery than the majority counterparts. Strategic interventions to improve the access to, and the value of, clinical care for minority populations with low back pain are warranted.

Back pain in seniors: the Back pain Outcomes using Longitudinal Data (BOLD) cohort baseline data

BACKGROUND

Back pain represents a substantial burden globally, ranking first in a recent assessment among causes of years lived with disability. Though back pain is widely studied among working age adults, there are gaps with respect to basic descriptive epidemiology among seniors, especially in the United States. Our goal was to describe how pain, function and health-related quality of life vary by demographic and geographic factors among seniors presenting to primary care providers with new episodes of care for back pain.

METHODS

We examined baseline data from the Back pain Outcomes using Longitudinal Data (BOLD) registry, the largest inception cohort to date of seniors presenting to a primary care provider for back pain. The sample included 5,239 patients ≥ 65 years old with a new primary care visit for back pain at three integrated health systems (Northern California Kaiser-Permanente, Henry Ford Health System [Detroit], and Harvard Vanguard Medical Associates [Boston]). We examined differences in patient characteristics across healthcare sites and associations of patient sociodemographic and clinical characteristics with baseline patient-reported measures of pain, function, and health-related quality of life.

RESULTS

Patients differed across sites in demographic and other characteristics. The Detroit site had more African-American patients (50%) compared with the other sites (7-8%). The Boston site had more college graduates (68%) compared with Detroit (20%). Female sex, lower educational status, African-American race, and older age were associated with worse functional disability as measured by the Roland-Morris Disability Questionnaire. Except for age, these factors were also associated with worse pain.

CONCLUSIONS

Baseline pain and functional impairment varied substantially with a number of factors in the BOLD cohort. Healthcare site was an important factor. After controlling for healthcare site, lower education, female sex, African-American race, and older age were associated with worse physical disability and all of these factors except age were associated with worse pain.

TRIAL REGISTRATION

Clinical Trials.gov NCT01776242; Registration date: June 13, 2012.

The importance of plain radiography in the evaluation of radiculopathy after failed diskectomy

Herniated disks in the lumbar spine are the leading cause of patient visits to spinal surgeons in the United States. Although magnetic resonance imaging (MRI) is the diagnostic test of choice in patients with a herniated disk, plain radiographs can provide important information and should remain a standard part of the diagnostic workup in any patient indicated for revision spine surgery. This article describes a case of a 36-year-old man with a >6-month history of worsening lumbar radiculopathy who was diagnosed with lumbar disk herniations based on MRI alone and underwent 2 unsuccessful attempts at microdiskectomy at another institution. Further workup by the senior author (A.C.H.), which included initial plain radiographs followed by computed tomography, demonstrated a large disk herniation with a markedly calcified annulus as the continuing source of neurologic compression. The patient underwent revision lumbar decompression with attention being paid to the removal of the calcified annulus and disk material that resulted in complete resolution of his symptoms. Although MRI is the diagnostic test of choice in the evaluation of spinal pathology, plain radiographs can provide important additional information that can be vital to the successful outcome of patients undergoing revision spinal surgery.

Dissemination of Methods and Results From the Veterans Health Study

The Veterans Health Study (VHS) followed a cohort of patients receiving ambulatory care in the Veterans Affairs healthcare system for up to 5 years. One of the principal aims of this study was to develop a library of methodologies including general and disease-specific health outcome questionnaires for use in monitoring the quality of healthcare and for research purposes. The cornerstone for this work is the Veterans RAND 36 and 12 Item Health Surveys (VR-36 and VR-12), a general measure developed in the VHS for measuring the physical and psychologic well-being of the patient. A comprehensive set of disease-specific assessments has also been developed as part of this study for the purposes of monitoring specific chronic conditions more commonly seen in routine ambulatory care settings. Since 1996, more than 2 million questionnaires have been administered in the VA for quality monitoring purposes, using the VR-36 and VR-12. Research studies that have used these batteries span randomized clinical trials in the VA cooperative studies program and clinical effectiveness research. Health assessments using VHS batteries are being disseminated for widespread use outside the VA. Chief among the assessments used is the VR-12, which has recently been included in the 2006 Health Plan Employer Data and Information Set (HEDIS) as part of the Medicare Health Outcomes Survey for monitoring the Medicare Advantage Program. The methods and batteries developed in the VHS are in the public domain and provide a framework for future patient monitoring using standard measures of health.

What diagnostic tests are useful for low back pain?

Low back pain (LBP) is a common problem that poses some interesting and difficult diagnostic problems. It is typically benign and self-limited, but it is occasionally the presenting symptom of serious systemic disease. The general diagnostic approach to low back pain is to check for 'red flags' in the history and physical that suggest the presence of malignancy, infection or spondyloarthridites, and for neurological compromise that could indicate that surgery is required (cauda equina syndrome) or may be beneficial (such as herniated discs or spinal stenosis that have not improved with conservative care). In the absence of these features, imaging is of limited value. Recent research has begun to evaluate subgroups with 'non-specific' low back pain that seem to benefit from specific interventions such as median branch or sacroiliac joint injections, manipulation, or specific exercises, but these require further investigation and validation.

Radiograph use in low back pain: a United States Emergency Department database analysis

We identified factors associated with radiograph evaluation for patients who presented to the Emergency Department (ED) with uncomplicated low back pain (LBP). Using 1998-2000 ED data from the National Hospital Ambulatory Medical Care Survey, a multivariate analysis was performed to assess utilization of radiographs for LBP. Based upon published guidelines, of the over 3 million patients who met our criteria of uncomplicated LBP, 17.8% received an unnecessary radiograph. Patients who arrive via ambulance with moderate pain, who need to be seen within 15 min, and who have 3 or more screening tests ordered are 100% likely to also get a radiograph. There is an increased probability of receiving a radiograph for those patients 40-70 years old, being seen at a metropolitan hospital, having private insurance, and being treated by a resident in training. Multiple factors are associated with the overuse of radiographs for patients presenting with uncomplicated LBP.

Correlative analysis of lateral vertebral radiographic variables and medical outcomes study short-form health survey: a comparative study in asymptomatic volunteers versus patients with low back pain

This prospective comparative study was designed to investigate the possible link between SF-36 functional status and lateral roentgenographic variables of the standing lumbar spine in patients with low back pain (LBP) versus asymptomatic volunteers. To the authors' knowledge, no previous studies have correlated SF-36 scores and sagittal roentgenographic variables in patients with LBP versus asymptomatic individuals. A total of 100 male volunteers, used as controls, and an equal number of age-, height-, and weight-comparable patients of the same ethnicity with chronic LBP were compared on the basis of roentgenographic and SF-36 data. The roentgenographic variables that were measured included the following: lumbar lordosis, sacral inclination, L1-S1 vertebral inclination, L4-S1 distal lordosis, disc index, and L1-L5 vertebral index. These variables were correlated with the eight SF-36 scales both in patients and controls. As the patients with LBP get older, they show lower functional scores in Role-Emotional (p < 0.01) and Physical Functioning (p < 0.01). Body height was not found to be a predisposition favoring LBP, but tall patients with LBP showed less Bodily Pain than patients of short stature (p < 0.001). This study showed that patients with LBP had significantly lower scores than their asymptomatic counterparts in the following SF-36 scales: Role-Physical (p < 0.01), Bodily Pain (p < 0.01), Role-Emotional (p = 0.058), and Mental Health (p < 0.001). In the controls General Health, Physical Functioning, Social Functioning, and Role-Emotional, Bodily Pain, Mental Health, and Vitality correlated statistically significantly with individuals' age, height, weight, lumbar lordosis, sacral inclination, inclination of L1, L3, and L5 vertebra, L1-L5 vertebral index, and L1-L2, L2-L3, L3-L4, L4-L5, and L5-S1 disc index. For the patients with LBP this study showed that General health, Physical Functioning, Role-Emotional, Social Functioning, and Bodily Pain were significantly correlated with age, height, L1-L2 inclination, distal lordosis, L2-L5 index, and L4-L5 and L5-S1 disc index. This comparative study showed that the functional status of hard-working patients with chronic LBP is associated with degenerative changes on the lateral radiographs of the lumbosacral spine. Spine surgeons should take into consideration the results of this study in reconstruction of painful degenerative lumbosacral spine.

Racial differences in the use of lumbar spine radiographs: results from the Veterans Health Study

STUDY DESIGN

We analyzed data from the Veterans Health Study, a longitudinal study of male patients receiving VA ambulatory care.

OBJECTIVE

To determine whether clinical differences and/or race account for disparities between white and nonwhite patients in the use of lumbar spine radiographs.

SUMMARY AND BACKGROUND DATA

Four hundred one patients with low back pain (LBP) receiving ambulatory care services in four VA outpatient clinics in the greater Boston area were followed for 12 months.

METHODS

Participants were mailed the Medical Outcome Study Short Form Health Survey (SF-36) and had scheduled interviews that included the completion of a low back questionnaire, a comorbidity index, and a straight leg raising (SLR) test. Using self-reported racial data, patients were grouped as whites (315 patients) and nonwhites (among whom 22 were black, 4 nonwhite Hispanics, and 1 other race).

RESULTS

Nonwhite patients had lumbar spine films more often (13 of 27, 48%) than white patients (87 of 315, 27%)(P = 0.02). Nonwhite patients had higher pain intensity scores than white patients (63 +/- 21 vs. 48 +/- 21, P < 0.01) and were more likely to have radiating leg pain (20 of 27, 76%; compared with 171 of 315, 55%; P = 0.01) than white patients. Nonwhite patients had worse physical functioning (P = 0.01), general health perception (P = 0.05), social functioning (P = 0.02), and role limitations because of emotional problems (P < 0.01). At higher LBP intensity level, nonwhite patients received more lumbar spine films (20 of 27, 74%) than did white patients (155 of 315, 50%)(P < 0.01). Among patients with positive SLR test, nonwhite patients also had lumbar spine films more often (5 of 22, 23%) than white patients (29 of 315, 11%) (P < 0.01). However, after adjusting for multiple clinical characteristics, race was no longer found to be an independent predictor of lumbar spine radiograph use. A positive SLR test remained to be associated with higher radiograph use, whereas better mental health status was associated with lower radiograph use.

CONCLUSIONS

There was greater use of lumbar spine radiographs by nonwhite patients compared with white patients. This remained true when patients were subcategorized by severity of LBP or SLR test. However, race had no influence when multiple clinical characteristics of the patients were controlled for simultaneously. This study demonstrates the importance of careful and comprehensive case-mix adjustment when assessing apparent differences in the use of medical services.