Effect of preemptive intra-articular morphine and ketamine on pain after arthroscopic rotator cuff repair: a prospective, double-blind, randomized controlled study

Comparison of Analgesia Treatment Methods After Arthroscopic Rotator Cuff Repair: A Network Meta-analysis of 42 Randomized Controlled Trials

Background

The optimal method for postoperative analgesia after arthroscopic rotator cuff repair (ARCR) is still unclear.

Purpose

To compare the efficacy of postoperative analgesic methods after ARCR through network meta-analysis of randomized controlled trials and prospective controlled trials.

Study Design

Systematic review; Level of evidence, 2.

Methods

Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we searched PubMed, Embase, and Web of Science from inception until April 12, 2022, for randomized controlled trials and prospective controlled trials evaluating neuraxial analgesia, peripheral nerve block, periarticular local anesthetic infiltration, intravenous patient-controlled analgesia, oral analgesia, or any combination of these methods for pain management after ARCR. Outcomes included pain scores at rest, morphine consumption, and complications (nausea and vomiting). Study quality was assessed using the Cochrane risk-of-bias tool. Network meta-analysis was used to assess the relative efficacy of the methods for postoperative analgesia. The best choice for postoperative analgesia was defined as the one with significant differences in pain scores and morphine consumption compared with placebo, with no significant difference in complications, during the initial 48 hours postoperatively.

Results

Included were 42 studies with 3110 patients. Only suprascapular nerve block (SSNB) was significantly superior to placebo in pain scores (mean difference [MD], -0.93 [95% CI, -1.31 to -0.54] at 6 hours; MD, -2.34 [95% CI, -3.49 to -1.19] at 12 hours) and morphine consumption (MD, -17.70 [95% CI, -32.98 to -2.42] at 24 hours) (P < .05 for all), with no difference in complications (odds ratio, 0.96 [95% CI, 0.21 to 4.32]; P > .05). Pain scores were significantly lower with interscalene nerve block compared with SSNB (MD, -0.69 [95% CI, -1.17 to -0.20] at 6 hours; MD, -1.44 [95% CI, -2.21 to -0.67] at 12 hours) and with SSNB + axillary nerve block compared with SSNB (MD, -3.09 [95% CI, -4.18 to -1.99] at 6 hours; MD, -0.87 [95% CI, -1.71 to -0.03] at 12 hours) (P < .05 for all).

Conclusion

Based on the current evidence, most analgesic methods lowered pain and morphine consumption compared with placebo. There were significant differences in pain scores between interscalene nerve block and SSNB during the first 12 hours postoperatively, and adding axillary nerve block to SSNB enhanced the analgesic effect.

Use of Opioids in the Early Postoperative Period After Arthroscopic Rotator Cuff Repair: A Systematic Review

Background:

Postoperative treatment plans after orthopaedic procedures frequently include opioids for pain relief.

Purpose:

To evaluate opioid use in the early postoperative phase after arthroscopic rotator cuff repair (ARCR) to develop a procedure-specific understanding of the current role of opioids in pain management for this procedure.

Study Design:

Systematic review; Level of evidence, 4.

Methods:

A PubMed search was used to identify eligible studies. Data on patient demographics, visual analog scale pain scores, and opioid use patterns (in morphine milligram equivalents [MMEs]) were collected and assessed. Cumulative MMEs were reported on postoperative day (POD) zero, and mean MMEs were reported on subsequent PODs (days 1, 2, 3, 5, 7, and 14). Metaregression, I² indices, and Cochran Q tests were used to evaluate study variation, heterogeneity, and variance.

Results:

A total of 1487 patients in 22 studies were included in the analysis. An estimated 51% (95% CI, 31%-70%) of patients with nerve blocks (NBs) were opioid-free through POD-0 versus 40% (95% CI, 1.2%-97%) of patients without NBs, which increased to 65% (95% CI, 55%-74%) versus 25% (95% CI, 1.7%-86%) by POD-1. Opioid requirements were highest in the first 72 hours after ARCR. NB use reduced opioid requirement on POD-0 compared with no NB use (15.8 vs 45.0 MMEs, respectively; P < .001) but did not reduce requirements after that. In addition, NB use led to a statistically significant increase in opioid requirements on POD-7 (28.6 vs 9.5 MMEs, respectively; P < .001). Using a model that assumes stable opioid requirements between our time points, weighted mean cumulative opioid consumption was 163 MMEs in the first week and 273 MMEs in the first 2 weeks (150 and 287 MMEs in patients with NB; 180 and 261 MMEs in patients without NB, respectively).

Conclusion:

Opioid use is relatively common in the early postoperative period after ARCR. Pain scores and opioid requirements may spike on POD-1; however, patients should be educated and reassured that they will gradually decrease usage over the initial 2-week postoperative period.

A Historical Analysis of Randomized Controlled Trials in the Management of Pain in Rotator Cuff Tears

The aim of this analysis was to assess the quality of reporting of randomized controlled trials (RCTs) relating to pain management in rotator cuff (RC) tears. This review evaluated the quality of the studies in the literature regarding this topic through the use of some factors and trends. The online databases used to search all RCTs on the topic of RC surgery were Medline, Scopus, CINAHL, EMBASE, and CENTRAL. This research was completed in September 2020. To assess the quality of reports, the Consolidated Standards of Reporting Trials (CONSORT) and the modified Coleman methodology score (MCMS) were used. From the research, 262 articles emerged. Finally, 79 studies were included in this historical analysis. There were no statistically significant changes in MCMS across trials that included or did not include a CONSORT diagram (p = 0.10). A statistically significant difference in MCMS was discovered between papers produced prior to 2009 and publications produced after 2015 (p = 0.03). There was no association between the number of checklist items for each article and the Coleman score. During the years there has been a significant increase in both quantity and quality of RCTs relating to pain in RC tears.

Intra-articular use of analgesic/antinflammatory drugs in dogs and horses

Joint pain is a major cause of lameness in animals such as horses and dogs, and it may affect their athletic performance and quality of life. The intra-articular administration of analgesic/antinflammatory drugs is a common practice in veterinary medicine, for both lameness diagnosis and joint pain management. It is used either perioperatively, such as in animals undergoing arthroscopy/arthrotomy, and in osteoarthritic animals. However, evidence regarding efficacy and safety of each drug is limited, and controversies persist in these areas. In particular, it is often uncertain whether a defined treatment is effective by simply relieving the symptomatic pain associated with the joint disease, or whether it has a positive effect on the joint environment. Moreover, there is still much hesitation about treatments for joint diseases, related to the time of their application for the best outcome, and to any possible deleterious side effects. This article includes a review of the literature concerning the main analgesic/antinflammatory drugs used intra-articularly for managing acute and chronic joint pain/inflammation in dogs and horses. Three main issues for each class of drugs are considered, including clinical efficacy, pharmacokinetics, and local cytotoxic effects.

A Systematic Review of Intra-Articular Ketamine for Postoperative Analgesia

BACKGROUND

This systematic review appraises the evidence from human clinical trials comparing postoperative pain scores and opioid consumption in patients receiving intra-articular ketamine versus other modalities of analgesia after orthopedic joint procedures.

METHODS

Studies were identified from Embase, Scopus, and OVID Medline databases. Included studies compared patients receiving intra-articular ketamine versus other modalities of analgesia. The primary outcome of interest was postprocedural pain score and total opioid consumption, whereas secondary outcomes included time to rescue analgesic medication request, active range of motion, time to mobilization, and adverse effects.

RESULTS

Seventeen studies were included. Dosage of ketamine varied widely from 0.25 to 2 mg/kg. Fifteen of 17 demonstrated decreased overall pain scores and decreased total postoperative opioid consumption in patients receiving intra-articular ketamine versus control groups. Included studies generally demonstrated reduced time to mobilization and increased latency until rescue analgesic medication in the intra-articular ketamine group.

CONCLUSIONS

Patients who received intra-articular ketamine generally reported lower pain scores and had lower postoperative opioid consumption after orthopedic joint procedures. This suggests that the intra-articular route of ketamine delivery may be a useful analgesic modality, although future larger-scale trials should explore its pharmacokinetics, optimal dosing, safety, and cost-effectiveness.

A Historical Analysis of Randomized Controlled Trials in Rotator Cuff Tears

Background and objectives: Our research aimed to evaluate the quality of reporting of randomized controlled trials (RCTs) linked to rotator cuff (RC) tears. The present study analyzed factors connected to the quality of the RCTs and trends in the quality of reporting through time. Materials and Methods: The online databases used to search all RCTs on the topic of RC surgery completed until March 2020 were PubMed and Ovid (MEDLINE). The quality of reporting was evaluated using the modified Coleman methodology score (MCMS) and the consolidated standards of reporting trials (CONSORT). Results: The online search found 957 articles. Finally, 183 studies were included in the quantitative synthesis. A total of 97 (53%) of 183 studies had a level of evidence I and 86 (47%) of 183 studies had a level of evidence II, according to the Oxford Center of Evidence Based Medicine (EBM). A statistically significant difference in MCMS between articles written before 2010 and articles written after 2010 was found. Articles written after 2010 had, on average, the highest Coleman score. The average number of CONSORT checklist items for each article across all analyzed RCTs was 21.67. The 37 studies completed up to 2010 averaged a number of checklist items of 19.97 and the studies completed between 2011 and 2019 averaged a number of checklist items of 22.10. A statistically significant difference in the number of checklist items between articles written before 2010 and articles written after 2010 was found. Articles written after 2010 had on average more checklist items. However, low correlation (0.26) between the number of checklist items for each article and the respective Coleman score was found. On the other hand, articles with the CONSORT diagram had a significantly high Coleman score. Conclusions: An improvement in the quantity and quality of RCTs relating to RC surgery over the analyzed period was found.

PROSPECT guideline for rotator cuff repair surgery: systematic review and procedure-specific postoperative pain management recommendations

Rotator cuff repair can be associated with significant and difficult to treat postoperative pain. We aimed to evaluate the available literature and develop recommendations for optimal pain management after rotator cuff repair. A systematic review using procedure-specific postoperative pain management (PROSPECT) methodology was undertaken. Randomised controlled trials published in English from 1 January 2006 to 15 April 2019 assessing postoperative pain after rotator cuff repair using analgesic, anaesthetic or surgical interventions were identified from MEDLINE, Embase and Cochrane Databases. Out of 322 eligible studies identified, 59 randomised controlled trials and one systematic review met the inclusion criteria. Pre-operative and intra-operative interventions that improved postoperative pain were paracetamol, cyclo-oxygenase-2 inhibitors, intravenous dexamethasone, regional analgesia techniques including interscalene block or suprascapular nerve block (with or without axillary nerve block) and arthroscopic surgical technique. Limited evidence was found for pre-operative gabapentin, perineural adjuncts (opioids, glucocorticoids, or α-2-adrenoceptor agonists added to the local anaesthetic solution) or postoperative transcutaneous electrical nerve stimulation. Inconsistent evidence was found for subacromial/intra-articular injection, and for surgical technique-linked interventions, such as platelet-rich plasma. No evidence was found for stellate ganglion block, cervical epidural block, specific postoperative rehabilitation protocols or postoperative compressive cryotherapy. The analgesic regimen for rotator cuff repair should include an arthroscopic approach, paracetamol, non-steroidal anti-inflammatory drugs, dexamethasone and a regional analgesic technique (either interscalene block or suprascapular nerve block with or without axillary nerve block), with opioids as rescue analgesics. Further randomised controlled trials are required to confirm the influence of the recommended analgesic regimen on postoperative pain relief.

Acute postoperative pain after arthroscopic rotator cuff surgery: A review of methods of pain assessment

INTRODUCTION

Pain can be severe during the first days after arthroscopic surgery, and acute pain is an important outcome in clinical trials of surgical technique or anaesthetic strategy. A standardized, validated method of assessing acute postoperative pain would improve the quality of clinical studies, and facilitate systematic reviews and meta-analyses. A step on the way towards this standard is to investigate the methods most commonly used in recent literature.

METHODS

PubMed and CINAHL databases were searched, including studies of arthroscopic rotator cuff surgery with a primary pain-related outcome during the first postoperative week, published in English from 2012 to 2017.

RESULTS

A total of 47 studies were included, all measuring pain intensity using a pain rating scale. Most frequently used was the visual analogue scale using the anchors "no pain" and "worst pain imaginable", with recordings at 1, 2, 4, 6, 8, 12, and 24 hours postoperatively. A total of 34 studies recorded analgesic consumption, usually as average cumulated consumption in mg. Time to first analgesic request or first pain were recorded in 11 studies, and 4 different starting points were used.

DISCUSSION

This review describes the currently most common methods of assessing acute postoperative pain in clinical trials of arthroscopic shoulder surgery involving rotator cuff repair, and the large variety of methods applied. Based on this study and international guidelines, several recommendations on how to measure and report postoperative pain outcomes in future trials are proposed.

Preemptive Local Anesthesia in Ankle Arthroscopy

BACKGROUND

Complex anesthesia is increasingly used in order to reduce postoperative pain and accelerate rehabilitation. The aim of this study was to evaluate the efficacy and safety of preemptive local anesthesia combined with general or spinal anesthesia in ankle arthroscopy.

METHODS

From January 2014 to February 2016, 80 ankle anterior arthroscopies were performed. Patients were randomly assigned to one of 4 groups, depending on the type of anesthesia: A, general and local preemptive; B, spinal and local preemptive; C, general and placebo; D, spinal and placebo. After general or spinal anesthesia, each patient randomly received an injection of 7 mL of a mixture of local anesthetics or the same amount of normal saline. After 2, 4, 8, 12, 16, 24, 48, and 72 hours following the release of the tourniquet, the pain intensity level was measured with a visual analog scale (VAS). The use of additional analgesics and any adverse effects were also noted.

RESULTS

Preemptive local anesthesia (groups A and B) resulted in a significantly lower level of pain intensity during the first 24 hours after surgery. Until 8 hours after the release of the tourniquet, the pain intensity level was statistically lower in the groups A, B, and D in comparison to C. During hospitalization, none of the patients from groups A and B received on-demand ketoprofen intravenously. No side effects of local anesthetic agents were observed. Two patients had transient numbness and paresthesia in the field of sensory nerve innervation of the dorsal intermediate cutaneous nerve of the foot.

CONCLUSION

Preemptive operative site infiltration with a mixture of local anesthetics performed in ankle arthroscopy was a safe procedure. It reduced the level of intensity of postoperative pain and the amount of analgesics used.

LEVEL OF EVIDENCE

Level I, prospective randomized study.