Chronic postsurgical pain (CPSP) affects an estimated 10% to 50% of adults depending on the type of surgical procedure. Clinical prediction models can help clinicians target preventive strategies towards patients at high risk for CPSP. Therefore, the objective of this systematic review was to identify and describe existing prediction models for CPSP in adults. A systematic search was performed in MEDLINE, Embase, PsychINFO, and the Cochrane Database of Systematic Reviews in March 2020 for English peer-reviewed studies that used data collected between 2000 and 2020. Studies that developed, validated, or updated a prediction model in adult patients who underwent any surgical procedure were included. Two reviewers independently screened titles, abstracts, and full texts for eligibility; extracted data; and assessed risk of bias using the Prediction model Risk of Bias Assessment Tool. The search identified 2037 records; 28 articles were reviewed in full text. Fifteen studies reporting on 19 prediction models were included; all were at high risk of bias. Model discrimination, measured by the area under receiver operating curves or c-statistic, ranged from 0.690 to 0.816. The most common predictors identified in final prediction models included preoperative pain in the surgical area, preoperative pain in other areas, age, sex or gender, and acute postsurgical pain. Clinical prediction models may support prevention and management of CPSP, but existing models are at high risk of bias that affects their reliability to inform practice and generalizability to wider populations. Adherence to standardized guidelines for clinical prediction model development is necessary to derive a prediction model of value to clinicians.

Background and aimsPatients usually receive a prescription for morphine or another opioid at discharge after surgery. Several studies have shown that many patients do not step down but develop persistent opioid use following surgery. The purpose of this study was to gain insight of patients’ experiences with opioid tapering after surgery and to propose recommendations for clinicians to assist patients in opioid tapering.MethodsUsing a qualitative study design, 15 adult patients who took opioids before surgery and still had a daily consumption of opioids 6 months following spine surgery were interviewed.ResultsAnalyses of the transcripts identified three major themes and eight subthemes. The major themes were as follows: (1) The patients’ experienced that their whole life revolved around pain and opioids and felt stigmatized and suspected of being drug addicts by their social circle and health care professionals (2) Barriers for opioid tapering were increased pain, opioid dependency and fear of withdrawal symptoms (3) Motivational factors for opioid tapering were fear of dependency, the prospect of a better health, patient involvement in opioid tapering and a trusting relationship between patient and clinician.ConclusionsThe results of this study highlight that opioid tapering is challenging and may be influenced by many different factors. Some patients find opioid tapering particularly difficult and therefore need additional assistance in order to taper off successfully.ImplicationsFor opioid tapering to succeed, it is highly important to establish a trustful relationship with the patients, to take each patient’s personal circumstances into account and to address fears of increased pain and withdrawal symptoms. Clinicians should also focus on patient involvement in opioid tapering and consider to offer a follow-up after discharge to patients at risk for prolonged opioid use.

Single-center, investigator-initiated, prospective cohort study.Objective. This study aimed to determine patient-reported reasons for persistent opioid use following elective spine surgery, assess the frequency of withdrawal symptoms, and characterize pain-related care sought after discharge. Summary of Background Data. Patients are often prescribed opioids at discharge from hospital following surgery. Several studies have shown that a large number of patients fail to discontinue opioid treatment and use opioids even months to years after surgery. Spine surgery has proven to be a high-risk procedure in regard to persistent opioid use. There is, however, limited evidence on why patients continue to take opioids. Methods. Three hundred patients, scheduled to undergo spine surgery at Aarhus University Hospital, Denmark, were included. Baseline characteristics and discharge data on opioid consumption were collected. Data on opioid consumption, patientreported reasons for opioid use, withdrawal symptoms, and pain-related care sought were collected at 3-and 6-month follow-up via a REDCap survey. Results. Before surgery, opioid use was reported in 53% of patients. Three months after surgery, opioid use was reported in 60% of preoperative opioid-users and in 9% of preoperative opioid non-users. Patients reported the following reasons for postoperative opioid use: treatment of surgery-related pain (53%), treatment of surgery-related pain combined with other reasons (37%), and reasons not related to spine surgery (10%).Withdrawal symptoms were experienced by 33% of patients during the first 3 months after surgery and were associated with failure to discontinue opioid treatment (P < 0.001). Half of patients (52%) contacted health care after discharge with painrelated topics the first 3 months. Conclusion. Patients use opioids after spine surgery for reasons other than surgery-related pain. Withdrawal symptoms are frequent even though patients are given tapering plans at discharge. Further studies should address how to facilitate successful and safe opioid tapering in patients undergoing spine surgery.

Supplemental Digital Content is Available in the Text.In surgical patients with preoperative opioid use, a personalized tapering plan and follow-up counselling may be effective in reducing opioid consumption after surgery.