How does preoperative opioid use impact postoperative health-related quality of life scores for patients undergoing lumbar microdiscectomy?

Preoperative opioid use is associated with worse two-year patient-reported outcomes after hand surgery: A retrospective cohort study

Introduction

Opioid overprescribing has caused a substantial increase in opioid related deaths and billions of dollars in additional healthcare costs. Orthopaedic surgeons commonly prescribe opioids in the perioperative period; however, research has shown preoperative opioid use may be associated with worse postoperative outcomes. Despite this body of evidence, there are few studies investigating the association between preoperative opioid use and two-year outcomes after hand surgery.

Materials and methods

This study evaluated two-year postoperative patient-reported outcomes in patients who used opioids prior to hand surgery, and those who did not. Patients completed pre and postoperative questionnaires including Patient-Reported Outcomes Measurement Information System (PROMIS) domains, the Brief Michigan Hand Questionnaire (BMHQ), and other questionnaires related to pain, function, and satisfaction. 342 patients undergoing upper-extremity surgery were enrolled into a prospective orthopaedic surgery outcome registry, and 69.9% completed the follow-up surveys. Preoperative opioid use and its association to patient outcome scores was analyzed through bivariate analysis. Significant associations were further tested by multivariable analysis to determine independent predictors.

Results

Preoperative opioid use was associated with worse two-year PROMIS Fatigue (p ​< ​.01), PROMIS Anxiety (p ​< ​.01), PROMIS Depression (p ​< ​.01), SSQ-8 (p ​= ​.01), BMHQ (p ​= ​.01), NPS Hand (p ​< ​.01) and MODEMS met expectations (p ​= ​.03). No significant differences were observed in patient-reported outcome change scores. Multivariable analysis demonstrated that preoperative opioid use was predictive of worse two-year PROMIS Fatigue (p ​< ​.01), PROMIS Anxiety (p ​< ​.01), PROMIS Depression (p ​= ​.02), BMHQ (p ​= ​.01), SSQ-8 (p ​< ​.01), NPS Hand (p ​= ​.02) and MODEMS met expectations (p ​< ​.01).

Conclusion

Preoperative opioid use was associated with worse patient-reported outcomes two years after elective hand surgery. There was no significant difference in the improvement from baseline between the two groups. Clinically significant differences were observed in follow-up PROMIS Anxiety, BMHQ and NPS - Hand scores. Clinically significant change scores were noted in both groups for PROMIS PF, PROMIS PI, PROMIS SS, BMHQ, and NPS - Hand.

Does Preoperative Opiate Choice Increase Risk of Postoperative Infection and Subsequent Surgery?

BACKGROUND

Opioids are commonly prescribed for chronic pain before spinal surgery and research has shown an increased rate of postoperative adverse events in these patients.

OBJECTIVE

This study compared the incidence of 2-year subsequent surgical procedures and postoperative adverse events in patients undergoing lumbar fusion with or without 90-day preoperative opioid use. We hypothesized that patients using preoperative opioids would have a higher incidence of subsequent surgery and adverse outcomes.

METHODS

A retrospective cohort study was performed using the Optum Pan-Therapeutic Electronic Health Records database including adult patients who had their first lumbar fusion between 2015 and 2018. The daily average preoperative opioid dosage 90 days before fusion was determined as morphine equivalent dose and further categorized into high dose (morphine equivalent dose >100 mg/day) and low dose (1-100 mg/day). Clinical outcomes were compared after adjusting for confounders.

RESULTS

A total of 23,275 patients were included, with 2112 patients (10%) using opioids preoperatively. There was a significantly higher incidence of infection compared with nonusers (12.3% vs. 10.1%; P = 0.01). There was no association between subsequent fusion surgery (7.9% vs. 7.5%; P = 0.52) and subsequent decompression surgery (4.1% vs. 3.6%; P = 0.3) between opioid users and nonusers. Regarding postoperative infection risk, low-dose users showed significantly higher incidence (12.7% vs. 10.1%; P < 0.01), but high-dose users did not show higher incidence than nonusers (7.5% vs. 10.1%; P = 0.23).

CONCLUSIONS

Consistent with previous studies, opioid use was significantly associated with a higher incidence of 2-year postoperative infection compared with nonuse. Low-dose opioid users had higher postoperative infection rates than did nonusers.

Evaluation of the Predictors for Unfavorable Clinical Outcomes of Degenerative Lumbar Spondylolisthesis After Lumbar Interbody Fusion Using Machine Learning

Background

An increasing number of geriatric patients are suffering from degenerative lumbar spondylolisthesis (DLS) and need a lumbar interbody fusion (LIF) operation to alleviate the symptoms. Our study was performed aiming to determine the predictors that contributed to unfavorable clinical efficacy among patients with DLS after LIF according to the support vector machine (SVM) algorithm.

Methods

A total of 157 patients with single-segment DLS were recruited and performed LIF in our hospital from January 1, 2015 to October 1, 2020. Postoperative functional evaluation, including ODI and VAS were, performed, and endpoint events were defined as significant relief of symptom in the short term (2 weeks postoperatively) and long term (1 year postoperatively). General patient information and radiological data were selected and analyzed for statistical relationships with the endpoint events. The SVM method was used to establish the predictive model.

Results

Among the 157 consecutive patients, a postoperative unfavorable clinical outcome was reported in 26 patients (16.6%) for a short-term cohort and nine patients (5.7%) for a long-term cohort. Based on univariate and multivariate regression analysis, increased disc height (DH), enlarged facet angle (FA), and raised lateral listhesis (LLS) grade were confirmed as the risk factors that hindered patients' short-term functional recovery. Furthermore, long-term functional recovery was significantly associated with DH alone. In combination with the SVM method, a prediction model with consistent and superior predictive performance was achieved with average and maximum areas under the receiver operating characteristic curve (AUC) of 0.88 and 0.96 in the short-term cohort, and 0.78 and 0.82 in the long-term cohort. The classification results of the discriminant analysis were demonstrated by the confusion matrix.

Conclusions

The proposed SVM model indicated that DH, FA, and LLS were statistically associated with a clinical outcome of DLS. These results may provide optimized clinical strategy for treatment of DLS.

Burden of preoperative opioid use and its impact on healthcare utilization after primary single level lumbar discectomy

BACKGROUND CONTEXT

The complication profile and higher cost of care associated with preoperative opioid use and spinal fusion is well described. However, the burden of opioid use and its impact in patients undergoing lumbar discectomy is not known. Knowledge of this, especially for a relatively benign and predictable procedure will be important in bundled and value-based payment models.

PURPOSE

To study the burden of pre-operative opioid use and its effect on postoperative healthcare utilization, cost, and opioid use in patients undergoing primary single level lumbar discectomy.

STUDY DESIGN

Retrospective cohort study.

PATIENT SAMPLE

A 29,745 patients undergoing primary single level lumbar discectomy from the IBM MarketScan (2000-2018) database.

OUTCOME MEASURES

Ninety-day and 1-year utilization of lumbar epidural steroid injections, emergency department (ED) services, lumbar magnetic resonance imaging, hospital readmission, and revision lumbar surgery. Continued opioid use beyond 3-months postoperatively until 1-year was also studied. We have reported costs associated with healthcare utilization among opioid groups.

METHODS

Patients were categorized in opioid use groups based on the duration and number of oral prescriptions before discectomy (opioid naïve, < 3-months opioid use, chronic preoperative use, chronic preoperative opioid use with 3-month gap before surgery, and other). The risk of association of preoperative opioid use with outcome measures was studied using multivariable logistic regression analysis with adjustment for various demographic and clinical variables.

RESULTS

A total of 29,745 patients with mean age of 45.3±9.6 years were studied. Pre-operatively, 29.0% were opioid naïve, 35.0% had < 3-months use and 12.0% were chronic opioid users. There was a significantly higher rate of post-operative lumbar epidural steroid injections, magnetic resonance imaging , ED visits, readmission and revision surgery within 90-days and 1-year after surgery in chronic pre-operative opioid users as compared with patients with < 3-months use and opioid naïve patients (p<.001). Chronic post-operative opioid use was present in 62.6% of the preoperative chronic opioid users as compared with 5.6% of patients with < 3-months opioid use. A 3-month prescription free period before surgery in chronic pre-operative opioid users cut the incidence of chronic post-operative opioid use by more than half, at 25.7%. Cost of care and adjusted analysis of risk have been described.

CONCLUSION

Chronic preoperative opioid use was present in 12% of a national cohort of lumbar discectomy patients. Such opioid use was associated with significantly higher post-operative healthcare utilization, risk of revision surgery, and costs at 90-days and 1-year postoperatively. Two-third of chronic preoperative opioid users had continued long-term postoperative opioid use. However, a 3-month prescription free period before surgery in chronic opioid users reduces the risk of long-term postoperative use. This data will be useful for patient education, pre-operative opioid use optimization, and risk-adjustment in value-based payment models.

The Influence of Preoperative Narcotic Consumption on Patient-Reported Outcomes of Lumbar Decompression

Study Design

Retrospective cohort.

Purpose

This study aimed to assess the relationship between preoperative narcotic consumption and patient-reported outcomes (PRO) in patients undergoing minimally invasive (MIS) lumbar decompression (LD).

Overview of Literature

Previous studies report negative effects of narcotic consumption on perioperative outcomes and recovery; however, its impact on quality of life and surgical outcomes is not fully understood.

Methods

A surgical database was retrospectively reviewed for patients undergoing primary, single-level MIS LD from 2013 to 2020. Patients lacking preoperative narcotic consumption data were excluded. Demographics, spinal pathologies, and operative characteristics were collected. Patients were grouped based on preoperative narcotic consumption. Patient Health Questionnaire-9 (PHQ-9), Visual Analog Scale (VAS) for back and leg, Oswestry Disability Index (ODI), 12-item Short Form Physical Component Summary, and Patient-Reported Outcomes Measurement Information System physical function (PROMIS-PF) were collected preoperatively and postoperatively. Preestablished values were used to calculate achievement of minimum clinically important difference (MCID). Differences in mean PROs and MCID achievement between groups were evaluated.

Results

The cohort was 453 patients; 184 used preoperative narcotics and 269 did not. Significant differences were found in American Society of Anesthesiologists classification, ethnicity, insurance type, and estimated blood loss between groups. Significant differences were also found in preoperative PHQ-9, VAS leg, ODI, and PROMIS-PF between groups (all p<0.05). Mean postoperative PROs did not differ by group (p>0.05). A higher rate of MCID achievement was associated with the narcotic group for PHQ-9 and PROMIS-PF at 6 weeks (both p≤0.050), VAS leg at 1 year (p=0.009), and overall for ODI and PHQ-9 (both p≤0.050).

Conclusions

Preoperative narcotic consumption was associated with worse preoperative depression, leg pain, disability, and physical function. In patients consuming preoperative narcotics, a higher proportion achieved an overall MCID for disability and depressive symptoms. Patients taking preoperative narcotic medications may report significantly worse preoperative PROs but demonstrate greater improvements in postoperative disability and mental health.