Coexistence of pain and depression predicts poor 2-year surgery outcome among lumbar spinal stenosis patients

Association between phase angle and clinical outcomes in patients with lumbar spinal stenosis from the preoperative to 12-month postoperative period: A prospective observational study

No reports of longitudinal studies on phase angle (PhA) in lumbar spinal stenosis (LSS) exist, and its association with postoperative clinical outcomes is unclear. We longitudinally investigated PhA in patients with LSS preoperatively to 12 months postoperatively and determined the association between PhA and the Japanese Orthopedic Association (JOA) score. This prospective observational study included patients who underwent consecutive surgical treatments for clinically and radiologically defined LSS. Outcome measures including walking speed, Timed Up and Go test (TUG), JOA score, and PhA based on bioelectrical impedance analysis were measured preoperatively and at 3, 6, and 12 months postoperatively. Correlations between PhA and the JOA score and motor function were analyzed. The effect of PhA on JOA scores was evaluated using mixed-effect models for repeated measurements (MMRM). Eighty-nine patients were included at baseline, and 85, 85, and 78 patients were analyzed at 3, 6, and 12 months postoperatively, respectively. PhA was 3.9 ± 0.8 (p = 0.086), 4.0 ± 0.8 (p = 0.644), and 4.1 ± 0.9 (p = 0.791) at 3, 6, and 12 months postoperatively and 4.2 ± 0.8 at baseline. PhA was significantly correlated with the JOA score (p < 0.01) and walking speed and TUG results (p < 0.01) at all assessment points. In the MMRM, PhA was associated with the JOA score at all assessment points. Changes in postoperative JOA scores after lumbar spine surgery are associated with PhA at each assessment time point. PhA may be a useful postoperative clinical indicator after surgery for LSS.

Depression as a prognostic factor for lumbar spinal stenosis outcomes: a systematic review

PURPOSE

Lumbar spinal stenosis (LSS) is associated with increased levels of psychological distress, including depression; however, the prognostic value of depression remains unclear. The purpose of this systematic review was to synthesize the evidence on the prognostic value of depression for a range of outcomes in patients with LSS.

METHODS

Inclusion criteria were prospective cohort studies that investigated depression in patients diagnosed with LSS. Searches were conducted in 7 databases. Critical appraisal, data extraction, and judgement of cumulative evidence were conducted independently by two reviewers. A meta-analysis was not conducted due to a lack of unique cohorts for each outcome, varying follow-up times, and differences in measurements for both prognostic factors and outcomes.

RESULTS

Twenty-three articles were included. There was evidence for an association between preoperative depression and postoperative disability and symptom severity outcomes for patients with LSS. Odds ratios ranged from 1.15 to 2.94 for postoperative disability and 1.16-1.20 for symptom severity at various follow-up times. Using GRADE, evidence supporting depression as a prognostic factor for these LSS outcomes was deemed to be of moderate quality. Similarly strong evidence suggested depressive symptoms are of no prognostic value for postoperative walking capacity.

CONCLUSION

Depression appears to have small to moderate prognostic value for LSS outcomes, with the strongest evidence for postoperative disability and symptom severity. The prognostic value of depression for LSS outcomes should be further explored using standardized measures in additional cohorts, including patients managing their condition conservatively, who have been neglected in related research.

Japanese Orthopaedic Association (JOA) clinical practice guidelines on the management of lumbar spinal stenosis, 2021 - Secondary publication

BACKGROUND

The Japanese Orthopaedic Association (JOA) guideline for the management of lumbar spinal stenosis (LSS) was first published in 2011. Since then, the medical care system for LSS has changed and many new articles regarding the epidemiology and diagnostics of LSS, conservative treatments such as new pharmacotherapy and physical therapy, and surgical treatments including minimally invasive surgery have been published. In addition, various issues need to be examined, such as verification of patient-reported outcome measures, and the economic effect of revised medical management of patients with lumbar spinal disorders. Accordingly, in 2019 the JOA clinical guidelines committee decided to update the guideline and consequently established a formulation committee. The purpose of this study was to describe the formulation we implemented for the revision of the guideline, incorporating the recent advances of evidence-based medicine.

METHODS

The JOA LSS guideline formulation committee revised the previous guideline based on the method for preparing clinical guidelines in Japan proposed by the Medical Information Network Distribution Service in 2017. Background and clinical questions were determined followed by a literature search related to each question. Appropriate articles based on keywords were selected from all the searched literature. Using prepared structured abstracts, systematic reviews and meta-analyses were performed. The strength of evidence and recommendations for each clinical question was decided by the committee members.

RESULTS

Eight background and 15 clinical questions were determined. Answers and explanations were described for the background questions. For each clinical question, the strength of evidence and the recommendation were both decided, and an explanation was provided.

CONCLUSIONS

The 2021 clinical practice guideline for the management of LSS was completed according to the latest evidence-based medicine. We expect that this guideline will be useful for all medical providers as an index in daily medical care, as well as for patients with LSS.

Sex-Dependent Differences in Symptom-Related Disability Due to Lumbar Spinal Stenosis

Study Design

Retrospective observational study.

Objective

The objective of this study is to identify possible sex-dependent differences in symptom-related disability in patients with lumbar spinal stenosis.

Methods

103 consecutive outpatients (42 men and 61 women) with lumbar spinal stenosis were assessed on the basis of their medical history, the physical examination, and a series of questionnaires including the Oswestry Disability Index (ODI), the Roland Morris Disability Questionnaire (RMDQ), the Patient Health Questionnaire module 9 (PHQ-9), and the Depression Anxiety Stress Scales (DASS). Narrowing of the spinal canal was graded according to the method established by Schizas. Parameters were statistically analyzed according to the biological sex of the patients. The influence of the variables on the disability scores was analyzed by means of a multivariate regression model.

Results

Symptom severity was equally distributed between men and women. Female patients showed higher RMDQ and ODI scores as well as significantly higher intermediate depression scores. The confounding variables age, pain chronicity, and psychological affection as well as the symptoms level of pain and paresis were dependent on patient sex.

Conclusion

The study shows sex-depended differences in the perception of symptoms of lumbar spinal stenosis and disability of life. The findings suggest that the main mediators are pain perception and psychological influences on the quality of life.

Anxiety and depression in spine surgery-a systematic integrative review

BACKGROUND

Symptoms of preoperative anxiety and depression occur in approximately one-third of patients with chronic back pain undergoing surgery. In the last 2 decades, several studies have established that preoperative anxiety and depression are important outcome predictors of greater pain and physical impairments, and lower health-related quality of life in patients undergoing spine surgery. To accommodate symptoms of anxiety and depression and thereby better surgical outcomes, we need to identify factors associated with these symptoms.

PURPOSE

We aimed to identify factors associated with symptoms of anxiety and depression in adults both before and after undergoing spinal surgery.

STUDY DESIGN

An integrative literature review was carried out.

METHODS

The independent charity Helsefonden supported this literature review by contributing $45,000 to remunerate a dedicated investigator. A systematic literature search was conducted in PubMed, CINAHL, PsycINFO, Embase, Scopus, Cochrane, and Web of Science. A three-step selection and assessment process was conducted; titles and abstracts of 1,124 articles were skimmed for relevance and of these, 53 articles were found to be of relevance and were read in full. Articles not meeting the inclusion criteria (n=26) were excluded. The 31 articles were critically appraised for methodological validity; 14 of these were synthesized and analyzed using a convergent qualitative design to transform both qualitative and quantitative articles into qualitative findings.

RESULTS

Fourteen studies were included, reporting results based on 4,833 participants, 3,017 men and 1,816 women, whose mean age was approximately 49 years. From these results, we extracted 75 individual findings, which we then divided into five categories of factors associated with anxiety and depression both before and after undergoing spine surgery: pain, information, disability, employment, and mental health.

CONCLUSIONS

Five categories of interacting factors that influenced symptoms of anxiety and depression both before and after surgery were identified: pain, lack of information, disability, return to work, and mental health. Information appears to have a regulating effect on anxiety and depression.

The psychology of chronic post-surgical pain: new frontiers in risk factor identification, prevention and management

In an era of considerable advances in anaesthesiology and pain medicine, chronic pain after major surgery continues to be problematic. This article briefly reviews the known psychological risk and protective factors associated with the development of chronic postsurgical pain (CPSP). We begin with a definition of CPSP and then explain what we mean by a risk/protective factor. Next, we summarize known psychological risk and protective factors for CPSP. Psychological interventions that target risk factors and may impact postsurgical pain are reviewed, including the acceptance and commitment therapy (ACT)-based approach to CPSP prevention and management we use in the Transitional Pain Service (TPS) at the Toronto General Hospital. Finally, we conclude with recommendations for research in risk factor identification and psychological interventions to prevent CPSP. Several pre-surgical psychological risk factors for CPSP have been consistently identified in recent years. These include negative affective constructs, such as anxiety symptoms, depressive symptoms, pain catastrophizing and general psychological distress. In contrast, relatively few studies have examined psychological protective factors for CPSP. Psychological interventions that target known psychological risk factors while enhancing protective psychological factors may reduce new incidence of CPSP. The primary goal of our ACT intervention is to teach patients a mindful way of responding to their postsurgical pain that empowers them to interrupt the negative cycle of pain, distress, behavioural avoidance and escalating opioid use that can limit functioning and quality of life while paradoxically amplifying pain over time. Early clinical outcome data suggest that patients who receive care from TPS physicians reduce their pain and opioid use, yet patients who also receive our ACT intervention have a larger decrease in daily opioid dose while reporting less pain interference and lower depression scores.

Depression as a prognostic factor of lumbar spinal stenosis: a systematic review

BACKGROUND CONTEXT

The clinical syndrome of lumbar spinal stenosis (LSS) is a commonly diagnosed lumbar condition associated with pain and disability. Psychological factors, including depression, also affect these and other health-related outcomes. Yet, the prognostic value of depression specifically in the context of LSS is unclear.

PURPOSE

The aim of this systematic review was to examine the literature on depression as a prognostic factor of outcomes in patients with LSS.

STUDY DESIGN

Best-evidence synthesis.

PATIENT SAMPLE

Patients receiving the diagnosis of LSS and surgery.

METHODS

A best-evidence synthesis was conducted, including articles published between 1980 and May 2012. Each article meeting inclusion criteria, including a longitudinal design, was critically appraised on its methodological quality by two authors independently, who then met to reach consensus. Only studies deemed scientifically admissible were included in the review.

RESULTS

Among the 20 articles that met the inclusion criteria, 13 were judged scientifically admissible. The evidence supports an association between preoperative depression and postoperative LSS-related symptom severity (a combination of pain, numbness, weakness and balance issues) and disability. The effect size for these associations was variable, ranging from no effect to a moderate effect. For example, an increase of 5 points on a 63-point depression scale doubled the odds of being below the median in LSS-related symptom severity at follow-up. Findings on the association between preoperative depression and postoperative pain alone and walking capacity were more variable.

CONCLUSIONS

Findings support that preoperative depression is likely a prognostic factor for postoperative LSS-related symptom severity and disability at various follow-up points. The prognostic value of depression on the outcomes of pain and walking capacity is less clear. Nonetheless, depression should be considered in the clinical care of this population.

The relationship of unemployment and depression with history of spine surgery

BACKGROUND

Chronic back pain is a known risk factor for unemployment, disability, and depression. This paper discusses the interaction of unemployment, depression, and history of prior spine surgery.

METHODS

We retrospectively reviewed the charts of 629 patients who underwent spine surgery and who were between the ages of 25 and 65 years. We collected data on their employment status, history of depression, and history of prior spine surgery (yes or no). Three types of spine surgery were included in the study: lumbar microdiscectomy, anterior cervical decompression and fusion, and lumbar decompression and fusion.

RESULTS

Approximately 29% (183) of the patients were unemployed and 32% (200) had a history of depression. Unemployment was more common among depressed patients (44% vs 27%; p < 0.001), and depression was more common among unemployed patients (41% vs 24%; p < 0.001). A history of prior spine surgery was most prevalent in unemployed female patients with a history of depression.

CONCLUSION

Unemployment and depression were strongly associated with a history of prior spine surgery in the female cohort of our study population.