Integrative Management: Essential Insights for Neuropathic Pain

Discover strategies for neuropathic pain with integrative management and take charge of your health today.

Abstract: A Multidisciplinary Approach to Managing Complex Refractory Neuropathic Pain

In this educational post, I guide you through a complex patient case involving chronic neuropathic pain that presented significant management challenges in an advanced, refractory scenario. We will explore the journey of a 70-year-old female patient, “DM,” from her initial presentation with severe thoracic pain presumed to be postherpetic neuralgia to the progressive, multimodal steps taken to manage her debilitating symptoms. This case highlights the importance of thorough pain assessment using the PQRSTU framework, thoughtful opioid selection and rotation, identification and management of opioid-induced hyperalgesia (OIH), strategic use of advanced therapies such as methadone and intrathecal drug delivery systems, and the integration of chiropractic care and regenerative platelet-rich plasma (PRP) therapy to address biomechanical contributors, nerve irritation, and tissue-level healing.

This case exemplifies our integrative care model at Injury Medical Clinic PA (also known as Mission Plaza Injury Medical Clinic) in El Paso, Texas. Here, I, Dr. Alex Jimenez (DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST), work within a multidisciplinary team. A cornerstone of our practice is the collaborative relationship with our Medical Director, Dr. Maria Guadalupe Cardenas, MD (NPI #1164426749, Texas MD License #J2933). Dr. Cardenas is Board Certified in Internal Medicine and brings over 40 years of experience, providing essential medical oversight for pharmacologic safety, comorbidities, and complex regimens. Together, our team integrates chiropractic care, medical supervision, functional medicine, rehabilitation, and regenerative therapies to deliver holistic, evidence-based care that honors the whole person.

Our Multidisciplinary Pain Care Model: Medical Direction and Chiropractic + Regenerative Integration

I practice at Injury Medical Clinic PA in El Paso, Texas, where our care model integrates chiropractic medicine, internal medicine oversight, functional medicine, rehabilitation, and regenerative interventions into a unified system designed to address complex neuropathic and chronic pain cases. This multidisciplinary setup ensures safe, coordinated care—especially for patients requiring opioids, anticonvulsants, tricyclics, interventional procedures, or advanced neuromodulation.

• Dr. Maria Guadalupe Cardenas, MD, Board Certified in Internal Medicine with over 40 years of experience as an internist, serves as our Medical Director and Collaborative Physician. Her role includes medical governance, pharmacologic oversight, and safety monitoring of renal/hepatic function, polypharmacy risks, frailty, and QTc considerations with agents such as methadone.
• I, Dr. Alex Jimenez, DC, APRN, FNP-BC, CFMP, IFMCP, ATN, CCST, lead integrative chiropractic, functional medicine, and regenerative implementation—focusing on biomechanical restoration, neurodynamic mobilization, graded movement, central sensitization modulation, and regenerative injections such as PRP.
• A Unified Front: Dr. Cardenas and I review complex cases together, combining medical and chiropractic/functional/regenerative perspectives to create comprehensive plans. This prevents disjointed care and ensures every team member works toward shared goals. Our team also includes a licensed clinical social worker and chaplain services for psychosocial and spiritual support, as well as rehabilitation specialists for graded activity and pain modulation.

Meet Our Patient: The Intersection of Chronic Neuropathic Pain and Acute Exacerbation

As a provider specializing in complex pain and symptom management, I often encounter patients whose lives are profoundly disrupted by refractory neuropathic symptoms. Today, I share the story of DM, a 70-year-old female whose case illustrates the intricate challenges of managing severe, treatment-resistant thoracic neuropathic pain.

DM presented with a history of prior shingles and developed significant right-sided thoracic pain. She was admitted for thoracentesis to address a right-sided pleural effusion. Post-procedure, she developed a pneumothorax requiring chest tube placement and extended hospitalization. Beyond the expected discomfort from the chest tube, she experienced worsening right-sided pain that she attributed to her prior shingles episode. Along the way, we learned that the shingles diagnosis had never been confirmed with characteristic skin lesions, underscoring the need to revisit early assumptions and perform a comprehensive evaluation.

Patient Profile at a Glance

• Social History: Married, former smoker, infrequent alcohol use, no illicit substance use.
• Home Medications: Omeprazole, ibuprofen, levothyroxine, citalopram, and amitriptyline.
• Review of Systems: Notable findings included fatigue, sleep disturbance, reduced appetite, constipation, and significant functional decline—all reflecting the profound systemic impact of uncontrolled chronic neuropathic pain on her overall health and nutrition.
• Initial Examination: DM appeared fatigued and in significant pain-related distress. Right lung sounds were diminished. She was tender to light touch over the lower right chest and back in a distinct T4-T8 dermatomal pattern that precisely matched the area of her chest tube and reported “shingles” pain. Allodynia was present.

The Multidisciplinary Pain Management Consultation: Unraveling the Pain Story

Our complex pain management team was consulted on hospital day eight. DM had already endured a week of escalating pain. The day prior, she underwent VATS (Video-Assisted Thoracoscopic Surgery) with pleural biopsy to investigate the effusion and clarify contributing factors. My priority was a thorough pain assessment using the PQRSTU algorithm.

• P (Precipitating/Palliating): Pain was continuous. Nothing reliably made it better or worse. It had begun months earlier (December) and was initially diagnosed as postherpetic neuralgia. She had tried gabapentin with minimal relief and worsening lower extremity edema, so it was discontinued.
• Q (Quality): “A thousand stinging electric shocks”—classic neuropathic descriptors indicating nerve-origin pain with peripheral and central sensitization.
• R (Region/Radiation): Confined to the right side along T4-T8 dermatomes, with tenderness to even light touch (allodynia).
• S (Severity): 5–7/10; her goal was a tolerable 3/10.
• T (Temporal Aspects): On a Dilaudid (hydromorphone) PCA. She described a frustrating cycle of brief relief, falling asleep, then awakening 30–45 minutes later in severe pain.
• U (Impact on You): Pain was all-consuming—”unable to do anything”: concentrate, walk, eat, or envision returning home.

This assessment confirmed severe, poorly controlled neuropathic pain with both peripheral and central sensitization components, acutely exacerbated by procedural trauma, inflammation, and biomechanical dysfunction.

Initial Treatment Strategy: A Multimodal, Integrative Approach

DM’s initial post-operative regimen was insufficient for her underlying neuropathic condition. We immediately introduced targeted therapies while optimizing existing medications and addressing the whole person.

Our Initial Interventions

• Neuropathic Agent: Started pregabalin 25 mg three times daily (chosen for lower edema risk compared with gabapentin). Pregabalin binds calcium channels in the CNS, reducing excitatory neurotransmitter release (Bockbrader et al., 2010).
• Optimize Basal Control: Continued any long-acting opioid and scheduled acetaminophen 1000 mg every 8 hours for a stable non-opioid foundation.
• Data Gathering: Encouraged continued PCA use to quantify opioid requirements for future titration or rotation.
• Whole-Person Support: Involved our licensed clinical social worker and chaplain for coping strategies and anxiety management.
• Chiropractic Integration: Requested chiropractic consultation for thoracic spine and rib cage assessment. Gentle, safe techniques (with consideration for the chest tube) were initiated to address guarding, improve segmental mobility, begin neurodynamic mobilization, and introduce pain neuroscience education to reduce fear and central sensitization.

A Complicated Course: Navigating Setbacks and Evolving Symptoms

DM developed dizziness, confusion, and mild tremors—suspected related to pregabalin—so it was discontinued and low-dose nortriptyline started (tricyclic with sodium-channel effects beneficial for neuropathic pain; Gilron et al., 2015). Carbamazepine (another sodium-channel blocker) was later trialed. Multiple teams became involved, leading to a disjointed approach; her PCA was discontinued, and pain escalated sharply.

Further diagnostic workup, including VATS with pleural biopsy, helped rule out other acute intrathoracic processes and supported the picture of complex refractory thoracic neuropathic pain with prominent central sensitization—likely rooted in chronic post-viral nerve injury (consistent with postherpetic neuralgia), compounded by inflammatory sensitization and mechanical stress from the chest wall, respiratory dynamics, and procedural trauma.

Pain mechanisms in this scenario include:

• Chronic peripheral nerve damage causes ectopic firing and ephaptic transmission in intercostal and thoracic nerves.
• Inflammatory mediators (prostaglandins, cytokines, NGF) sensitize peripheral nociceptors.
• Central sensitization and wind-up in the dorsal horn amplify signals.
• Altered respiratory mechanics, rib motion, and diaphragmatic tension amplify pain with inspiration and movement.
• Myofascial restrictions and thoracic biomechanical dysfunction perpetuate the cycle.

Understanding Opioid Selection, Titration, and Rotation

In complex neuropathic pain, opioid stewardship requires choosing the right agent, safe titration, and rotation when efficacy wanes or side effects (including OIH) emerge. While opioids act primarily on mu-receptors, pharmacodynamic differences affect adverse effects and hyperalgesic risk (Chou et al., 2009; Häuser et al., 2021). Certain metabolites (e.g., morphine-3-glucuronide) can be neuroexcitatory, contributing to myoclonus, allodynia, and hallucinations (Smith, 2000; Angst & Clark, 2006).

Opioid-Induced Hyperalgesia (OIH): When More Opioids Worsen Pain

DM’s presentation strongly suggested OIH: pain worsened despite dose escalation, spread beyond the original site, and she developed neuroexcitability (myoclonus, tremors). OIH is a neurotoxic sensitization state mediated by NMDA receptor activation and neuroexcitatory metabolite accumulation—not simple tolerance (Angst & Clark, 2006).

Clinical signs of OIH:

• Hyperexcitability, myoclonus, restlessness
• Worsening pain despite higher doses
• Allodynia
• Delirium or hallucinations

Simply escalating the dose often intensifies the problem. Clinicians must pivot to strategies that reduce sensitization.

Movement Medicine: Chiropractic Care- Video

Recalibrating the Strategy: The Art of Opioid Rotation

With signs of OIH and mixed nociceptive-neuropathic pain, we performed an opioid rotation. Patients respond differently to various opioids due to genetics and metabolism (Fine & Portenoy, 2009). Rotation involves calculating total daily Morphine Milligram Equivalents (MME) and typically reducing the new opioid dose 25–50% for incomplete cross-tolerance.

Patient-Controlled Analgesia (PCA) Optimization

Over 24 hours, her PCA use totaled roughly 130 mg MME/day. We initiated a morphine PCA with basal 0.5 mg/hour and bolus 0.5 mg every 15 minutes. After poor relief, we increased the basal dose to 1 mg/hour, then rotated to hydromorphone PCA (basal 0.2 mg/hour, bolus 0.3 mg every 15 minutes) to improve tolerability.

Despite adjustments, her daily MME reached approximately 486 mg with ongoing severe pain. Her mixed pain picture plus OIH made her an excellent candidate for rotation to methadone.

Why Methadone Was Considered

Methadone’s unique pharmacology makes it valuable in refractory neuropathic pain and OIH (Mercadante & Bruera, 2018; Chu et al., 2006).

Key Rationale:

• Dual action: R-enantiomer provides mu-opioid agonism (nociceptive pain); S-enantiomer provides NMDA antagonism and monoamine reuptake inhibition (neuropathic pain relief).
• NMDA receptor antagonism: Particularly effective for neuropathic pain and can help reverse OIH.
• No active toxic metabolites: Safer in patients with renal impairment (Chou et al., 2009).

Risks and Constraints (managed under Dr. Cardenas’s oversight):

• Long, variable half-life (8–>60 hours)? slow titration; typically wait at least 4 days between increases (Krantz et al., 2009).
• QTc prolongation risk? baseline ECG; do not initiate if QTc >450 ms.

We initiated methadone 5 mg every 8 hours, conservatively titrated to 10 mg every 8 hours, while methodically weaning the hydromorphone PCA.

Intrathecal Pain Pumps: Advanced Pain Management for Refractory Neuropathic Pain

Despite improved control with methadone, DM desired a solution requiring less daily self-management. This led to a discussion of intrathecal therapy. Intrathecal drug delivery delivers microdoses directly into the subarachnoid space, providing immediate access to spinal pain receptors in the dorsal horn.

Mechanism and Advantages (Deer et al., 2017):

• Direct CSF delivery yields high spinal receptor engagement with very low doses, minimizing systemic side effects (sedation, nausea, constipation).
• Particularly effective for dermatomal and refractory neuropathic pain patterns.
• The implantable pump reservoir is refilled approximately every 2–3 months.
• Dramatic potency difference (example: ~300 mg oral morphine ? 1 mg intrathecal).

The patient consented to an intrathecal hydromorphone pump (basal rate ~0.25 mg/day, with boluses of 0.04 mg every 6 hours as needed). This provided stable, tolerable pain relief. We weaned her from the PCA and began tapering methadone. By hospital day 45, she was discharged home with her pain finally controlled.

Supporting Recovery and Integrating Chiropractic Care + PRP Therapy Post-Discharge

After discharge, DM continued care with our team. With the intrathecal pump providing a stable foundation, we focused on restoring function and addressing residual biomechanical and tissue contributors to her neuropathic pain through our integrative model.

How Integrative Chiropractic Care and PRP Therapy Enhance Outcomes in Refractory Neuropathic Pain

In our clinic, under Dr. Cardenas’s medical direction, chiropractic care and regenerative therapies complement advanced pharmacologic and interventional management by targeting mechanics, modulation, healing, and meaning.

Mechanics and Modulation

Gentle, patient-specific thoracic spine and rib mobilization, soft-tissue techniques, and neurodynamic mobilization reduce myofascial guarding around affected T4-T8 dermatomes, improve segmental motion and rib excursion, and facilitate nerve gliding. This offloads irritated intercostal nerves, promotes circulation, and reduces peripheral nociceptive input that fuels central sensitization (Shacklock, 2005; Nijs et al., 2019). Graded movement exposure and diaphragmatic breathing further modulate autonomic arousal and pain perception.

Pain Neuroscience Education (PNE)

Reframing pain as a protective nervous system output, explaining sensitization mechanisms, and emphasizing neuroplasticity reduce fear-avoidance and improve engagement in rehabilitation (Moseley & Butler, 2015).

Regenerative Adjunct: Ultrasound-Guided PRP Therapy for Neuropathic Pain Support

For patients with chronic or refractory neuropathic pain who have local tissue irritation, nerve-interface inflammation, or associated myofascial dysfunction, we incorporate ultrasound-guided Platelet-Rich Plasma (PRP) injections. PRP, prepared from the patient’s own blood, delivers concentrated growth factors and cytokines (PDGF, TGF-B, VEGF, IGF, and others) that can:

• Support axonal regeneration and nerve repair processes.
• Modulate the local inflammatory microenvironment around peripheral nerves to help reduce ectopic firing.
• Promote healing in paravertebral soft tissues, fascia, and ligaments that may mechanically irritate thoracic nerves.
• Enhance tissue perfusion and create a more favorable healing environment.

In DM’s case, after initial stabilization, we performed targeted perineural and paravertebral PRP injections under ultrasound guidance at the affected thoracic levels. Combined with ongoing gentle chiropractic care, this regenerative approach helped further desensitize the region, improve thoracic mobility and nerve gliding, and support functional gains. Patients in our practice often report reduced allodynia, improved activity tolerance, and opportunities to optimize medication regimens over time with this combined chiropractic + PRP strategy.

Functional Medicine Synergy: Supporting the Whole System

With Dr. Cardenas’s oversight, we use functional medicine strategies to modulate systemic drivers that can exacerbate neuropathic pain and central sensitization:

• Anti-inflammatory nutrition emphasizing omega-3s and polyphenols (Calder, 2020).
• Mitochondrial support (CoQ10, L-carnitine, magnesium) to reduce fatigue and myalgias.
• Sleep restoration and non-sedating hygiene strategies to limit nocturnal pain amplification.
• Micronutrient repletion (e.g., vitamin D optimization) to support musculoskeletal and nervous-system health.

These supports do not replace medical or interventional therapy—they enhance tolerance, resilience, and the patient’s sense of agency.

Practical Takeaways for Clinicians and Patients

• If pain worsens as opioids increase, suspect opioid-induced hyperalgesia—look for allodynia and neuroexcitability.
• Rotate opioids rather than escalate indefinitely; consider agents with NMDA antagonism (e.g., methadone) in monitored settings for neuropathic/OIH components.
• Use scheduled non-opioid analgesics and maximize neuropathic agents (anticonvulsants, SNRIs/TCAs).
• Integrate gentle chiropractic care and regenerative PRP therapy early in complex neuropathic cases to address biomechanical dysfunction, promote tissue/nerve healing, reduce central sensitization, and improve long-term outcomes with lower medication burden.
• Revisit the diagnosis and contributing factors (biomechanical, inflammatory, central) when pain patterns defy expectations.
• Multidisciplinary teams humanize complex care. Medical oversight, rehabilitative science, psychosocial support, chiropractic modulation, and regenerative interventions together produce outcomes that are both clinically effective and compassionate.

Our Team’s Commitment in El Paso

DM’s story demonstrates that complex refractory neuropathic pain requires a creative, persistent, and truly multidisciplinary approach that extends beyond pharmacology. At Injury Medical Clinic PA in El Paso, Dr. Cardenas provides the medical framework to keep complex patients safe. At the same time, I ensure integrative chiropractic care, functional medicine, and regenerative therapies such as PRP work in concert with interventional procedures and rehabilitation. This collaboration delivers modern, evidence-based, whole-person care—walking alongside patients through their most challenging chapters with science, skill, and compassion.

References

• Angst, M. S., & Clark, J. D. (2006). Opioid-induced hyperalgesia: A qualitative systematic review. Anesthesiology, 104(3), 570–587.
• Bockbrader, H. N., et al. (2010). A comparison of the pharmacokinetics and pharmacodynamics of pregabalin and gabapentin. Clinical Pharmacokinetics, 49(10), 661–669.
• Calder, P. C. (2020). Nutrition, immunity, and COVID-19. Nature Reviews Immunology, 20(5), 307–315.
• Chou, R., et al. (2009). Clinical guidelines for the use of chronic opioid therapy in chronic noncancer pain. The Journal of Pain, 10(2), 113–130.
• Chu, L. F., et al. (2006). Opioid-induced hyperalgesia in humans: Clinical associations and mechanistic insights. Pain, 123(3), 173–179.
• Deer, T. R., et al. (2017). The Polyanalgesic Consensus Conference (PACC): Recommendations on intrathecal drug infusion systems in the treatment of pain. Neuromodulation, 20(2), 96–132.
• Fine, P. G., & Portenoy, R. K. (2009). The IASP refresher course syllabus for the 2009 IASP Research Symposium. IASP Press.
• Gilron, I., Baron, R., & Jensen, T. S. (2015). Neuropathic pain: A practical guide for the clinician. Anesthesiology, 122(6), 1347–1361.
• Häuser, W., et al. (2021). European Pain Federation position paper on appropriate opioid use in chronic pain. The Journal of Pain, 22(7), 692–710.
• Krantz, M. J., et al. (2009). QTc interval screening in methadone treatment. Annals of Internal Medicine, 150(6), 387–395.
• Moseley, G. L., & Butler, D. S. (2015). Fifteen years of explaining pain: The past, present, and future. Journal of Pain, 16(9), 807–813.
• Nijs, J., et al. (2019). Treatment of central sensitization in patients with chronic pain: Science should guide clinical practice. Journal of Pain, 20(9), 967–986.
• Shacklock, M. (2005). Clinical neurodynamics: A new system of musculoskeletal treatment. Elsevier.
• Smith, M. T. (2000). Neuroexcitatory effects of morphine and hydromorphone: Evidence implicating the 3-glucuronide metabolites. Anesthesiology, 93(6), 198–207.
• Williams, J. T., et al. (2013). Regulation of mu-opioid receptors: Desensitization, phosphorylation, internalization, and tolerance. Physiological Reviews, 93(4), 1223–1242.

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