Measuring pain phenomena after spinal cord injury: Development and psychometric properties of the SCI-QOL Pain Interference and Pain Behavior assessment tools

Baseline Comparison of Exercisers and Nonexercisers With Spinal Cord Injury Enrolled in a Group Tele-Exercise Program

Background

Individuals with SCI are 1.5 times more likely to be sedentary compared to adults without disabilities or chronic health conditions. It is therefore imperative to develop and evaluate innovative facilitation strategies for physical activity behavior in this population.

Objectives

As an insightful step to creating and evaluating tailored physical activity interventions for individuals with SCI, we evaluated demographic, psychosocial, and physical characteristics of those who choose to engage in physical activity by enrolling in a group exercise study.

Design/Methods

We conducted a cross-sectional analysis detailing demographic features and baseline outcomes of those with SCI enrolled in a group tele-exercise study who were classified as regular exercisers versus nonregular exercisers per the American College of Sports Medicine exercise guidelines. Between-group differences for psychosocial and physical outcomes were assessed with chi-square and Mann-Whitney U tests (p < .05).

Results

Twenty-seven adult volunteers enrolled in the study (exercisers = 14, nonexercisers = 13). Groups were comparable for biological sex, gender identity, self-reported racial group(s), and current age. Exercisers demonstrated significantly shorter duration of injury compared to nonexercisers (p = .012). Exercisers exhibited significantly higher exercise self-efficacy (p = .017) and increased reported weekly minutes in vigorous intensity leisure time physical activity (p = .029).

Conclusion

Nonexercisers with SCI demonstrate increased injury duration and reduced exercise self-efficacy compared to active peers. These factors should be addressed in the design and delivery of SCI-specific physical activity interventions to increase the likelihood of this critical health behavior over time.

Adult outcomes for children who sustained firearm-related spinal cord injuries

OBJECTIVE

To describe the adult functional, participation, education, employment, and quality of life outcomes of children who incurred spinal cord injury (SCI) as the result of gun injuries vs. non-violent etiologies, as well as their utilization of health services.

DESIGN

Retrospective-cohort study. Eligibility criteria were current age at least 18 years, at least 5 years after SCI, and injury prior to 19 years of age. After enrolling the gun injury group, we matched individuals with non-violent etiologies from the Midwest Regional SCI Model System database to the gun injury group's demographic characteristics. Adult outcomes included education level, employment, income, involvement with the criminal justice system, quality of life indicators using PROMIS and SCI-QOL item banks, and utilization of health services.

PARTICIPANTS

Twenty-six participants with gun injury SCI matched with 19 participants with non-violent etiologies.

RESULTS

Average age at injury was 15 years and current age was 44 years for both cohorts. Individuals from racial minority groups were over-represented in the gun injury cohort. The gun-injury cohort had lower educational attainment. Though employment rates were similar, the gun injury group had a lower income level. Both groups endorsed high average levels of function and quality of life on the PROMIS and SCI-QOL short forms.

CONCLUSIONS

SCI etiology reflects racial characteristics of the sample and is associated with subsequent educational attainment and income. Rehabilitation planning should consider gun injury etiology in children not as a characteristic that determines a poor outcome, but as a risk factor for reduced educational attainment and lifetime income.

Moving Beyond the Neck and Arm: The Pain Experience of People With Degenerative Cervical Myelopathy Who Have Pain

STUDY DESIGN

Cross-sectional internet survey of people living with degenerative cervical myelopathy.

OBJECTIVE

The purpose of this study was to quantify pain distribution, severity, and interference in persons with degenerative cervical myelopathy.

METHODS

Eighty-two participants with degenerative cervical myelopathy were recruited for this internet survey. This survey utilized the Michigan Body Map and brief pain inventory (BPI) to assess anatomical distribution and severity of pain as well as the patient derived modified Japanese Orthopedic Association scale (p-mJOA) for myelopathic severity and SF-36 for measures of health-related quality of life. Internal consistency was evaluated with Cronbach's alpha. Pearson's correlations were assessed with p-mJOA and SF-36. Multivariate analysis of variance was used to determine if history of prior surgery or concomitant pain diagnosis impacted experience of pain.

RESULTS

Michigan body map distribution and brief pain inventory severity and interference were correlated with p-mJOA and SF-36 scores (p < 0.05). Pain was moderate to severe in 78% of participants. Pain was commonly widespread. Pain scales were sufficiently internally consistent (α > 0.9). History of surgery or other pain diagnosis did not impact experience of pain in myelopathy.

CONCLUSIONS

Pain is commonly identifiable in large areas of the body, is frequently moderate to severe in intensity and impacts quality of life and severity of myelopathy in a cohort of individuals with myelopathy who have pain.

Active or passive pain coping: Which predicts daily physical and psychosocial functioning in people with chronic pain and spinal cord injury?

PURPOSE/OBJECTIVE

Despite medical and psychotherapeutic treatments, chronic pain is one of the most challenging and disabling conditions for individuals with spinal cord injury (SCI). A growing body of research has demonstrated that pain coping strategies are effective for the adjustment of pain. However, we still lack an understanding of how passive pain coping and active pain coping relate to daily physical and psychosocial functioning for people with chronic pain and SCI. The current study used end-of-day (EOD) diary data to examine associations of passive and active pain coping with same-day independence, positive affect and well-being, social participation, pain catastrophizing, depressive symptoms, and pain interference in adults with chronic pain and SCI.

RESEARCH METHOD/DESIGN

This observational study in N = 124 individuals with SCI (mean age = 47.53 years; 74.2% male, 25.8% female) used a combination of baseline surveys and seven consecutive days of end-of-day (EOD) diaries.

RESULTS

Results of multilevel modeling showed that, beyond the effects of key demographic variables, clinical variables (e.g., time since injury, mobility) and daily pain intensity, increased daily passive coping (from that person's average) related to increased same-day depressive symptoms (B = .29; p < .001), pain catastrophizing (B = .28; p < .001) and decreased same-day positive affect and well-being (B = -.31; p = .02). Increased daily active coping was related to higher same-day catastrophizing (B = .09; p < .05).

CONCLUSIONS/IMPLICATIONS

Behavioral interventions for pain often emphasize adoption and practice of new active coping strategies. Findings highlight the potential importance of also addressing passive coping strategies in services of improvement in physical and psychosocial outcomes in individuals with chronic pain and SCI. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

The presence of pain in community-dwelling South African manual wheelchair users with spinal cord injury

Background

Pain after spinal cord injury (SCI) is common and is likely to continue throughout life with varying levels of severity.

Objective

To determine the presence of pain, the sociodemographic and injury profile of community-dwelling manual wheelchair users.

Method

This quantitative correlational study used a sociodemographic and injury profile sheet and the Douleur Neuropathique 4 Questions (DN4) questionnaire to document demographic, SCI profiles as well as pain characteristics. Pain severity was determined using the Numeric Rating Scale. Data were analysed using the Statistical Package for the Social Sciences (SPSS) v27 at 0.05 level of significance.

Results

The pain rate was 104; 85% of 122 participants and mainly in those with complete SCI (77.9%). Neuropathic pain was more common (76; 62.5%) and significantly associated (p < 0.05) with higher pain severity. Pain was mainly in one area of the body (59; 48.4%) but occurring in up to five areas. The most painful area had a mean severity of 6.7/10; was more common in the lower limbs below the injury level (48; 39.4%); and was burning in nature (40; 32.7%).

Conclusions

Pain after SCI is as problematic in the South African context as it is globally. With the rising SCI prevalence in the country, understanding pain and its presentation is important for holistic management of a person with SCI.

Clinical implications

In-depth assessment of pain should be conducted and appropriate management interventions for specific pain types be prescribed to effectively reduce pain.

Overview of the Spinal Cord Injury-Functional Index (SCI-FI): Structure and Recent Advances

The Spinal Cord Injury - Functional Index is a system of patient reported outcomes (PRO) measures of functional activities developed specifically with and for individuals with spinal cord injury (SCI). The SCI-FI was designed to overcome limitations in measurement of the full range of activities and breadth of content of physical functioning commonly used in SCI research. Generic measurement tools of physical function (i.e., those focused on the general population) tend to overemphasize mobility and do not contain enough items at the lower end of the functional range (e.g., appropriate for individuals with tetraplegia). The SCI-FI consists of nine item response theory (IRT)-calibrated item banks that represent relevant and meaningful item content for individuals with SCI, span a wide range of functional abilities, and subdivide physical functioning into important subdomains, including basic mobility, self-care, and fine motor function. Since the original publication of the SCI-FI in 2012, there have been significant advances in and publications on the reliability and psychometric properties of the measures. The manuscripts presented in this special section clarify the SCI-FI structure and present new research on the SCI-FI measurement system.

Predicting Duration of Outpatient Physical Therapy Episodes for Individuals with Spinal Cord Injury Based on Locomotor Training Strategy

OBJECTIVE

To characterize individuals with spinal cord injuries (SCI) who use outpatient physical therapy or community wellness services for locomotor training and predict the duration of services, controlling for demographic, injury, quality of life, and service and financial characteristics. We explore how the duration of services is related to locomotor strategy.

DESIGN

Observational study of participants at 4 SCI Model Systems centers with survival. Weibull regression model to predict the duration of services.

SETTING

Rehabilitation and community wellness facilities at 4 SCI Model Systems centers.

PARTICIPANTS

Eligibility criteria were SCI or dysfunction resulting in motor impairment and the use of physical therapy or community wellness programs for locomotor/gait training. We excluded those who did not complete training or who experienced a disruption in training greater than 45 days. Our sample included 62 participants in conventional therapy and 37 participants in robotic exoskeleton training.

INTERVENTIONS

Outpatient physical therapy or community wellness services for locomotor/gait training.

MAIN OUTCOME MEASURES

SCI characteristics (level and completeness of injury) and the duration of services from medical records. Self-reported perceptions of SCI consequences using the SCI-Functional Index for basic mobility and SCI-Quality of Life measurement system for bowel difficulties, bladder difficulties, and pain interference.

RESULTS

After controlling for predictors, the duration of services for the conventional therapy group was an average of 63% longer than for the robotic exoskeleton group, however each visit was 50% shorter in total time. Men had an 11% longer duration of services than women had. Participants with complete injuries had a duration of services that was approximately 1.72 times longer than participants with incomplete injuries. Perceived improvement was larger in the conventional group.

CONCLUSIONS

Locomotor/gait training strategies are distinctive for individuals with SCI using a robotic exoskeleton in a community wellness facility as episodes are shorter but individual sessions are longer. Participants' preferences and the ability to pay for ongoing services may be critical factors associated with the duration of outpatient services.

The design of a randomized control trial of exoskeletal-assisted walking in the home and community on quality of life in persons with chronic spinal cord injury

There are more than 300,000 estimated cases of spinal cord injury (SCI) in the United States, and approximately 27,000 of these are Veterans. Immobilization from SCI results in adverse secondary medical conditions and reduced quality of life. Veterans with SCI who have completed rehabilitation after injury and are unable to ambulate receive a wheelchair as standard of care. Powered exoskeletons are a technology that offers an alternative form of limited mobility by enabling over-ground walking through an external framework for support and computer-controlled motorized hip and knee joints. Few studies have reported the safety and efficacy for use of these devices in the home and community environments, and none evaluated their impact on patient-centered outcomes through a randomized clinical trial (RCT). Absence of reported RCTs for powered exoskeletons may be due to a range of challenges, including designing, statistically powering, and conducting such a trial within an appropriate experimental framework. An RCT for the study of exoskeletal-assisted walking in the home and community environments also requires the need to address key factors such as: avoiding selection bias, participant recruitment and retention, training, and safety concerns, particularly in the home environment. These points are described here in the context of a national, multisite Department of Veterans Affairs Cooperative Studies Program-sponsored trial. The rationale and methods for the study design were focused on providing a template for future studies that use powered exoskeletons or other strategies for walking and mobility in people with immobilization due to SCI.

The reliability of end of day and ecological momentary assessments of pain and pain interference in individuals with spinal cord injury

PURPOSE

This study investigated the most efficient means of measuring pain intensity and pain interference comparing ecological momentary assessment (EMA) to end of day (EOD) data, with the highest level of measurement reliability as examined in individuals with spinal cord injury.

METHODS

EMA (five times throughout the day) and EOD ratings of pain and pain interference were collected over a 7-day period. Multilevel models were used to examine the reliability for both EOD and EMA assessments in order to determine the amount of variability in these assessments over the course of a week or the day, and a multilevel version of the Spearman-Brown Prophecy formula was used to estimate values for reliability.

RESULTS

Findings indicate the minimum of number of EOD and EMA assessments needed to achieve different levels of reliability ("adequate" > 0.70, "good" > 0.80 and excellent > 0.90). In addition, the time of day (either morning, midday or evening) did not impact the estimated reliability for the EMA assessments.

CONCLUSIONS

These findings can help researchers and clinician balance the cost/benefit tradeoffs of these different types of assessments by providing specific cutoffs for the numbers of each type of assessment that are needed to achieve excellent reliability.