Perioperative Pain Management: 

PERI-Operative Pain Management – The Protocol Framework

This section outlines the framework for a comprehensive approach to the management of pain associated with upcoming, planned surgical procedures. These procedures include those for the management of chronic joint, neck and back pain. They may include spinal fusions, artificial disc replacements, total joint replacements as well as less invasive procedures.

  • Perioperative – Before, During and After Surgery
  • Preoperative – Before Surgery
  • Postoperative – After Surgery

This guide is not intended to replace appropriate nutritional guidance that should be provided by a registered dietitian regarding peri-operative dietary management. Please consult with your surgeon for dietary guidance including referral to a dietitian.

 

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Definitions and Terms Related to Pain

 

Peri-operative Pain – The Protocol Framework

Introduction

The goal of the peri-operative pain protocol is to manage pain starting with the pre-operative period (4–6 weeks before surgery) through the post-operative period (up to 12 weeks after surgery. This protocol includes dietary & nutritional management as well as the use of nutraceuticals during both the pre-operative and post-operative periods. It is designed to reduce not only post-operative pain, but importantly, to also reduce the transitioning of post-operative pain from becoming chronic pain.

This peri-operative pain management protocol applies the principles of the 4-D chronic pain management protocols described here.The 4-D protocols engage lifestyle management as well as the use of prescription medications and therapeutic nutraceuticals based on the anti-inflammatory diet.

Outlined in the protocol are breakdowns of the responsibilities for both the surgical team and the pain management team regarding the assessment and management of the patient’s pain. Topics include pre-operative and post-operative dietary & nutritional management and recommended nutraceutical management.

Peri-operative Considerations for Patients on Chronic Opioid Management

Of note, this protocol has been established to facilitate appropriate and effective peri-operative pain management specifically directed at those pain patients who have been taking opioids chronically for their pain. Both the presence of chronic pain, as well as the long-term use of opioids, introduces significant variables that impact appropriate choices for managing the patient’s pain. An additional section is forthcoming for the management of peri-operative pain management directed at those patients with acute pain and/or non-opioid dependent pain.

This population has unique peri-operative needs that frames all subsequent protocol decisions:

    1. The American Society for Enhanced Recovery (ASER) and Perioperative Quality Initiative (POQI) Joint Consensus Statement strongly recommends that an individualized multimodal analgesia strategy be used for patients on pre-operative opioids, with routine use of nonopioid options and nonpharmacological treatments (GRADE A evidence). The primary objective is to treat acute surgical pain while preventing withdrawal and avoiding persistent opioid escalation beyond baseline dose.[1]
    2. Pre-operative opioid weaning to the lowest effective dose is recommended when feasible, and postoperative coordination of opioid tapering with the outpatient provider is strongly recommended. This creates a natural integration point for the pain management physician to provide recommendations to the surgical team.[1]
    3. For prevention of chronic post-surgical pain (a key goal of the protocol), a network meta-analysis of 132 RCTs found that IV lidocaine (OR 0.32), ketamine (OR 0.64), and gabapentinoids (OR 0.67) reduced the incidence of chronic post-surgical pain at ≤6 months, though confidence was low. These pharmacologic strategies are included in the recommendations to surgeons.[2] It is important to note that patients with chronic pain are significantly more vulnerable to transitioning post-operative pain to becoming chronic pain.

Strategic Framework for Protocol Development – A Modular Approach

Protocol Structure and Development Sequence

The peri-operative protocol is divided into the pre-operative period (4–6 weeks before surgery) and the post-operative period ((0–12 weeks after surgery). The pre-operative and post-operative protocols are each divided into two modules (1) Dietary & Nutritional Management and (2) Nutraceutical Management.

The four modules are presented in this order, as each builds on the prior:

   Pre-operative Management (4–6 weeks before surgery)

    • Module 1: Dietary and Nutritional Management
    • Module 2: Nutraceutical Management

   Post-operative Management (0–12 weeks after surgery)

    • Module 3: Dietary and Nutritional Management
    • Module 4: Nutraceutical Management

—

Module 1: Preoperative Dietary & Nutritional Management

   This module engages the 4–6 weeks before surgery and incorporates:

  • Nutritional screening using validated tools. The ASER/POQI consensus strongly recommends routine preoperative nutrition screening. Key biochemical markers include serum albumin (the most prevalent marker in TJA, correlated with protein-energy malnutrition), prealbumin, transferrin, and total lymphocyte count. These overlap well with the 4D Protocol’s existing biomarker panel.[3][4]
  • Micronutrient assessment — Vitamin D deficiency affects 13–63% of TJA patients and is consistently associated with increased complications, impaired functional scores, and higher infection risk. Vitamin C, magnesium, and omega-3 status should also be assessed.[5][6]
  • Anti-inflammatory dietary intervention — High-protein, anti-inflammatory dietary patterns are supported for perioperative optimization. This aligns directly with the 4D Protocol’s use of the Dietary Inflammatory Index (DII) framework. Protein delivery is emphasized as more important than total calorie delivery (See: Perioperative Protein Supplementation). [4][3]
  • Prehabilitation integration — A 2025 BMJ network meta-analysis of 186 RCTs (15,684 participants) found that exercise and nutritional prehabilitation are the individual components most likely to improve all critical surgical outcomes, including reduced complications and shorter length of stay.[7]

Module 2: Pre-operative Nutraceutical Management

This is where the 4D Protocol’s nutraceutical components must be carefully adapted for the peri-operative context.

 This module engages the 4–6 weeks before surgery and incorporates:

A critical consideration is the SPAQI Consensus Statement on Preoperative Management of Dietary Supplements, which provides specific hold/continue recommendations:[8]

  • Continue perioperatively: Fish oil/omega-3 fatty acids (prior bleeding concerns not borne out in prospective studies).[8]
  • Hold 2 weeks before surgery: Turmeric/curcumin, resveratrol, garlic, ginger, ginkgo (bleeding risk). This directly impacts several 4D Protocol nutraceuticals.[8]
  • Hold 2 weeks (cardiovascular concerns): CoQ10.[8]
  • Hold 24 hours: NAC (theoretical nitric oxide-mediated hypotension risk).[8]
  • For spine fusion specifically, the SPAQI statement notes that in procedures where bleeding would be dangerous (e.g., spine fusion), postponing may be warranted if supplements with bleeding risk were not held.[8]

   The pre-operative nutraceutical module includes a tiered timeline:

  • Which 4-D nutraceuticals to initiate early (4–6 weeks out) for anti-inflammatory priming
  • Which to hold at 2 weeks
  • Which can continue through surgery
  • The biomarker-guided domain profiling from the 4-D Protocol can guide which agents to prioritize during the available preoperative window.

Module 3: Post-operative Dietary & Nutritional Management

 This module engages the 12 week period immediately following surgery, incorporating:

   Key evidence-based elements:

  • Nutrition delivery should be restarted immediately after surgery, with protein delivery prioritized. Essential amino acid (EAA) supplementation preserves quadriceps muscle mass, improves strength recovery, and accelerates return to ADLs after TJA.[3][5]
  • Vitamin C reduces inflammatory markers, reduces pain, and lowers the incidence of complex regional pain syndrome after surgery.[5]
  • Bioflavonoids (particularly micronized purified flavonoid fraction) demonstrate high-quality evidence for reducing postoperative swelling and improving early motion after TKA.[5]
  • Post-discharge nutritional intake is often inadequate, and the role of post-discharge oral nutrition supplements is emphasized in the ASER/POQI consensus.[3]
  • This protocol is not intended to substitute for appropriate consultation with a registered dietitian

Module 4: Post-operative Nutraceutical Management

 This module engages the 12 week period immediately following surgery, incorporating:  

  • Restart timing for held nutraceuticals (generally once hemostasis is assured and surgeon clearance is obtained, typically 1–2 weeks postoperatively depending on the procedure).
  • Targeted reintroduction aligned with the 4-D domains — prioritizing agents that address the acute postoperative inflammatory surge (omega-3s, which were continued; curcumin and resveratrol once cleared), neuroinflammation (PEA, magnesium), oxidative stress (NAC, ALA), and mitochondrial support (CoQ10, NR, D-ribose).
  • Transition prevention — The 4-D Protocol’s focus on descending modulatory pathway support (via agents like PEA, magnesium, B vitamins) is particularly relevant during the 6–12 week window when acute-to-chronic pain transition risk is highest.

Recommendations to Surgeons

A concise, evidence-based communication template for the surgical team is developed as a companion document, including:

  • The patient’s baseline opioid regimen and recommendation to maintain (and avoid long-term escalation when possible)[1]
  • Multimodal analgesia recommendations (ketamine infusion for opioid-tolerant patients has level-1 evidence for lumbar fusion; COX-2 selective NSAIDs and acetaminophen for arthroplasty)[1][9][10]
  • Nutraceutical hold/restart schedule
  • Nutritional support recommendations for the immediate postoperative period

Assessment Schedule Alignment

Given a ~30-day pain management visit cadence, a practical timeline could be:

  • Pre-op Visit 1 (6-8 weeks preop): Baseline 4-D domain profiling, nutritional screening labs, dietary assessment, initiate preoperative nutraceuticals and dietary modifications
  • Pre-op Visit 2 (2 weeks preop or phone/telehealth): Hold specified nutraceuticals, reinforce dietary preparation, provide surgeon communication
  • Post-op Visit 1 (~4 weeks post-op): Reassess pain, restart nutraceuticals as cleared, adjust dietary plan for recovery phase
  • Post-op Visit 2 (~8 weeks post-op): Repeat select biomarkers, assess for chronic pain transition risk, adjust nutraceutical regimen
  • Post-op Visit 3 (~12 weeks post-op): Full reassessment, transition back to chronic pain management protocol

Conclusion

This framework provides a comprehensive, evidence-grounded structure that integrates the 4D Protocol’s biomarker-guided, domain-specific approach with the established perioperative optimization literature.

 

References

  1. American Society for Enhanced Recovery and Perioperative Quality Initiative Joint Consensus Statement on Perioperative Management of Patients on Preoperative Opioid Therapy. Edwards DA, Hedrick TL, Jayaram J, et al. Anesthesia and Analgesia. 2019;129(2):553-566. doi:10.1213/ANE.0000000000004018.
  2. Non-Opioid Analgesics for the Prevention of Chronic Postsurgical Pain: A Systematic Review and Network Meta-Analysis. Doleman B, Mathiesen O, Sutton AJ, et al. British Journal of Anaesthesia. 2023;130(6):719-728. doi:10.1016/j.bja.2023.02.041.
  3. American Society for Enhanced Recovery and Perioperative Quality Initiative Joint Consensus Statement on Nutrition Screening and Therapy Within a Surgical Enhanced Recovery Pathway. Wischmeyer PE, Carli F, Evans DC, et al. Anesthesia and Analgesia. 2018;126(6):1883-1895. doi:10.1213/ANE.0000000000002743.
  4. Nutritional Assessment and Interventions in Elective Hip and Knee Arthroplasty: A Detailed Review and Guide to Management. Dubé MD, Rothfusz CA, Emara AK, et al. Current Reviews in Musculoskeletal Medicine. 2022;15(4):311-322. doi:10.1007/s12178-022-09762-7.
  5. Perioperative Nutritional Optimization in Total Joint Arthroplasty: From Screening to Supplementation. Siddiqi A, Yousuf KM, Chen AF, Jacob PB, Wickline A. The Journal of Arthroplasty. 2026;:S0883-5403(26)00313-X. doi:10.1016/j.arth.2026.03.088.
  6. Preoperative Nutrition in Orthopaedic Surgery. Aepala MR, Chandler AJ, Orbeta L, Confino J, Wong SE. JB & JS Open Access. 2025 Oct-Dec;10(4):e25.00066. doi:10.2106/JBJS.OA.25.00066.
  7. Relative Efficacy of Prehabilitation Interventions and Their Components: Systematic Review With Network and Component Network Meta-Analyses of Randomised Controlled Trials. McIsaac DI, Kidd G, Gillis C, et al. BMJ (Clinical Research Ed.). 2025;388:e081164. doi:10.1136/bmj-2024-081164.
  8. Preoperative Management of Surgical Patients Using Dietary Supplements: Society for Perioperative Assessment and Quality Improvement (SPAQI) Consensus Statement. Cummings KC, Keshock M, Ganesh R, et al. Mayo Clinic Proceedings. 2021;96(5):1342-1355. doi:10.1016/j.mayocp.2020.08.016.
  9. A Case Illustrating the Practical Application of the AAOS Clinical Practice Guideline: Pharmacologic, Physical, and Cognitive Pain Alleviation for Musculoskeletal Extremity/Pelvis Surgery. Patzkowski JC, Patzkowski MS. The Journal of the American Academy of Orthopaedic Surgeons. 2022;30(18):e1161-e1164. doi:10.5435/JAAOS-D-22-00048.
  10. AAOS/METRC Clinical Practice Guideline Summary: Pharmacologic, Physical, and Cognitive Pain Alleviation for Musculoskeletal Extremity/Pelvis Surgery. Patzkowski JC, Patzkowski MS. The Journal of the American Academy of Orthopaedic Surgeons. 2022;30(18):e1152-e1160. doi:10.5435/JAAOS-D-22-00047.
  11. Management of Antithrombotic Therapy in Patients Undergoing Invasive Procedures. Baron TH, Kamath PS, McBane RD. The New England Journal of Medicine. 2013;368(22):2113-24. doi:10.1056/NEJMra1206531.
  12. Perioperative Management of Antithrombotic Medications: Guidelines From the American College of Chest Physicians. du Breuil AL. American Family Physician. 2023;108(2):208-211.

Emphasis on Education

 

Accurate Clinic promotes patient education as the foundation of it’s medical care. In Dr. Ehlenberger’s integrative approach to patient care, including conventional and complementary and alternative medical (CAM) treatments, he may encourage or provide advice about the use of supplements. However, the specifics of choice of supplement, dosing and duration of treatment should be individualized through discussion with Dr. Ehlenberger. The following information and reference articles are presented to provide the reader with some of the latest research to facilitate evidence-based, informed decisions regarding the use of conventional as well as CAM treatments.

 

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