Headaches to Healing

When most people think about the aftermath of a head injury, they picture rest, time, and perhaps some medications. What they rarely picture is a precisely guided needle, a radiofrequency probe, a carefully placed osteopathic hand, or a nerve stimulator. Yet for the millions of people living with chronic headaches, neck pain, cognitive fog, and debilitating post-concussion symptoms long after their injury, that is exactly where the answers may lie.

Dr. Mahajer approaches every patient as a whole person. Managing someone after a head trauma is not a single-specialty endeavor. It requires understanding the neuroscience, the structural anatomy, the pain pathways, the autonomic nervous system, and the full spectrum of interventional tools that can address each layer of dysfunction.

This is that story.

The Scope of the Problem

Each year, over 50 million people worldwide sustain a concussion or traumatic brain injury. Of those, approximately 10 to 20 percent go on to develop persistent post-concussion syndrome (PCS) — a constellation of physical, cognitive, emotional, and sleep-related symptoms that linger for months or years beyond the initial injury. Headache is the most common physical complaint after TBI, affecting between 30 and 90 percent of patients depending on the study. And yet, no standardized evidence-based treatment guidelines exist for post-traumatic headache. Most patients are offered cognitive rest, neuropathic pain medications, and physical therapy — and told to wait.

For many, that waiting becomes a way of life.

The reasons are not mysterious. Post-traumatic and cervicogenic headaches are complex, multifactorial, and often misdiagnosed or attributed to the wrong pain generator. Inflammation of the upper cervical facet joints, traumatic cranial neuralgias, myofascial injury, nerve entrapment within scar tissue, autonomic dysregulation, and sensitization of the trigeminocervical complex can all contribute — often simultaneously. Treating one without addressing the others leaves the patient only partially served.

Dr. Mahajer's approach is different. It is comprehensive, stepwise, and built around the concept that every pain generator deserves to be identified and addressed — from the somatic dysfunctions that an osteopathic hand can feel, to the entrapped nerves that a high-resolution ultrasound can visualize, to the refractory pathways that only a spinal cord stimulator can reach.

What Is Cervicogenic Headache — and Why Does It Matter After TBI?

Cervicogenic headache (CGH) is a secondary headache disorder caused by pathology in the cervical spine and its associated structures — muscles, ligaments, facet joints, intervertebral discs, and the C1 through C3 nerve roots. It affects up to 20 percent of all patients with chronic headache, and after a traumatic brain injury, its prevalence rises sharply.

The anatomical explanation is elegant and important. The upper cervical sensory inputs and the trigeminal nerve converge at a shared brainstem nucleus called the trigeminocervical complex. This means that injury and inflammation in the cervical spine can be perceived as head pain — and that headaches originating in the head can sensitize the neck. The two systems speak to each other constantly. A trauma that injures both simultaneously, as so many do, creates a feedback loop of pain that neither the neurologist nor the orthopedist alone is equipped to fully unravel.

This is the domain of the physician who can see the full picture: the physiatrist, the osteopathic interventionalist, the clinician who thinks from head to tail.

A Layered Framework

Managing the TBI and post-concussion patient is not a single procedure. It is a clinical journey through an organized hierarchy of diagnostic and therapeutic tools, each building on the one before it.

Osteopathic Manipulative Treatment: Starting With What the Hands Can Find

Before any needle is placed, Dr. Mahajer conducts a thorough osteopathic structural examination. Head injury creates somatic dysfunction that is palpable — restrictions in cranial sutural motion, occipitomastoid compression, sphenobasilar strain patterns, cervical segment restrictions, and diaphragmatic dysfunction that impairs intracranial fluid dynamics. These are not abstract findings. They are measurable, reproducible, and treatable.

Osteopathic manipulative treatment (OMT) for concussion and PCS targets this dysfunction using a range of techniques: OA (occipitoatlantal) decompression, CV4, venous sinus drainage, balanced membranous tension, balanced ligamentous tension, myofascial release, muscle energy techniques, and high-velocity low-amplitude manipulation where appropriate. The anatomical basis for this work is increasingly understood — functional lymphatic vessels lining the dural sinuses connect directly to the deep cervical lymph nodes and carry cerebrospinal fluid and immune cells, providing a structural rationale for OMT's effect on intracranial fluid dynamics after injury.

Clinical studies confirm what osteopathic clinicians have observed for decades. A controlled pilot study of patients with PCS lasting longer than three months found statistically significant improvement in headache pain intensity immediately following OMT (mean VAS change of 2.1; p=0.002). Case reports describe patients whose post-traumatic headaches ceased completely after a single session targeting cranial, cervical, and upper extremity somatic dysfunctions — in some instances the first pain-free day since the original injury.

OMT is not a replacement for interventional care. It is its essential companion — addressing the structural layer that procedures cannot reach and preparing the body to respond to them.

Diagnostic Nerve Blocks: Finding the Generator

One of the most important principles in interventional pain medicine is that you cannot treat what you have not identified. Because there is no imaging technique that can definitively localize the source of cervicogenic or post-traumatic headache, the diagnostic nerve block serves as the clinical gold standard.

By selectively anesthetizing specific structures — the greater and lesser occipital nerves, the third occipital nerve, the C2 dorsal root ganglion, the upper cervical facet joints, the atlantoaxial joint, the sphenopalatine ganglion, or the stellate ganglion — Dr. Mahajer can map the pain generators with precision. A positive block that reproduces and then abolishes the patient's typical pain is not just therapeutic. It is diagnostic. It tells us where to go next.

This step is the foundation on which everything that follows is built.

Trigger Point Injections: Addressing the Myofascial Layer

Myofascial trigger points — focal, hyperirritable knots within taut bands of skeletal muscle — are among the most underappreciated contributors to post-traumatic headache. First described by Dr. Janet Travell in 1942, they form in response to acute trauma and repeated micro-trauma, generate characteristic referred pain patterns, and can perpetuate or amplify underlying headache disorders of any type.

After a head or neck injury, trigger points in the trapezius, sternocleidomastoid, semispinalis capitis, splenius capitis, and levator scapulae are common findings. When pressed, they reproduce the patient's headache — sometimes in a distribution indistinguishable from occipital neuralgia or migrainous pain. Expert consensus and clinical evidence support trigger point injections with local anesthetic to these muscles as an effective intervention for hours to months of pain relief in cervicogenic, tension-type, and post-traumatic headache — particularly when combined with targeted nerve blocks and rehabilitative care.

Palliative Injections: Anti-Inflammatory Relief as a Bridge

Steroid and local anesthetic injections to the occipital nerves, cervical facet joints, cervical epidural space, and autonomic ganglia provide meaningful palliative benefit and serve as a clinical bridge — reducing the inflammatory burden enough to allow rehabilitative progress and establishing the patient in a state where more durable treatments can be planned. Systematic reviews confirm efficacy across all these targets, with the important caveat that steroid effects are typically transient, lasting weeks to a few months. They are a tool, not a destination.

Fascial and Nerve Hydrodissection: Releasing What Scar Tissue Has Trapped

One of the most technically sophisticated and clinically impactful tools in Dr. Mahajer's practice is ultrasound-guided nerve and fascial hydrodissection — the precise injection of fluid into the perineural or interfascial space to mechanically liberate a nerve that has been entrapped by scar tissue, fascial adhesion, or post-traumatic fibrosis.

After head and neck trauma, nerves do not only suffer neurochemical injury. They can become physically tethered — bound within scar tissue that forms around them during healing, compressed by fascial planes that have lost their normal compliance, or restricted within fibro-osseous tunnels that have been altered by the forces of impact. High-resolution ultrasound can visualize this entrapment directly: the abrupt change in nerve cross-sectional area at the adhesion site, the loss of normal nerve gliding on dynamic imaging, the hyperechoic scar encasing the fascicles. Once the entrapment is confirmed and its location precisely mapped, the choice of what to inject becomes the next critical clinical decision.

The injectate matters. A 2021 systematic review of hydrodissection injectates found that both 5% dextrose in water (D5W) and platelet-rich plasma (PRP) demonstrated consistently favorable outcomes compared to corticosteroids, normal saline, and local anesthetics — without serious adverse events in any group. A 2025 meta-analysis confirmed D5W to be superior to corticosteroids and saline for mid-term functional improvement. D5W appears to reduce neuropathic pain through mechanisms beyond simple hydrostatic separation, and may exert beneficial metabolic effects on the nerve and surrounding tissue.

Clinical outcomes in post-traumatic nerve entrapment are compelling. Case series and reports document over 90 percent symptom resolution after two sessions of ultrasound-guided D5W hydrodissection in patients with nerves entrapped within traumatic scar tissue — results that endured at follow-up.

Regenerative Injections: PRP and Cellular-Rich Concentrate

Where palliative injections suppress inflammation temporarily, regenerative injections aim to change the underlying biology of the injured tissue. Platelet-rich plasma (PRP) and cellular-rich concentrates deliver a growth factor milieu — PDGF, VEGF, TGF-β, IGF-1 — that supports axonal regeneration, reduces perineural fibrosis, and addresses the post-traumatic axonopathy that underlies chronic nerve pain in a way that corticosteroids cannot.

The first formal randomized controlled trial of PRP for post-traumatic greater occipital neuralgia — published in Frontiers in Neurology in 2024 — demonstrated that PRP is feasible, safe, and comparable to standard steroid/anesthetic injection in the short term, with the notable distinction that Headache Impact Test-6 scores improved significantly at three months in the PRP group (p=0.002) but not in the steroid group. This is a critical finding: PRP may offer durable functional benefit that steroids simply do not — a difference that becomes clinically decisive in the long-term management of the post-trauma patient.

Cryoneurolysis: Temporary but Meaningful Nerve Interruption

Cryoneurolysis applies extreme cold via a pressurized gas cryoprobe to induce Wallerian degeneration through axonotmesis — interrupting pain transmission for weeks to months while preserving the nerve cell body's ability to regenerate. For the greater occipital nerve, a randomized double-blinded trial found significant pain reduction of over 50 percent, with the important clinical advantage that nerve regeneration is preserved, avoiding the neuroma risk associated with thermal ablation.

Cryoneurolysis is most valuable in patients who have responded well to diagnostic blocks but are not yet candidates for radiofrequency ablation, or in those where a reversible, intermediate-duration intervention is preferred while longer-term planning proceeds. It is not the final step, but it is an important one.

Radiofrequency Ablation and Pulsed Radiofrequency: Durable Neurolysis

Radiofrequency ablation (RFA) and pulsed radiofrequency (PRF) modulate or interrupt nociceptive signals at the nerve level through thermal energy (RFA) or pulsed electromagnetic fields (PRF), with pulsed therapy offering a safer profile by avoiding thermal tissue destruction. Both are well-supported for cervicogenic headache and post-traumatic occipital pathology.

Systematic review of 11 RFA studies in cervicogenic headache found favorable long-term outcomes — pain reduction sustained beyond one year in many cases. Third occipital nerve RFA is established for C2-3 facet-mediated headache, which accounts for 27 percent of CGH cases following whiplash-type injury. C2 dorsal root ganglion PRF, particularly under ultrasound guidance for improved accuracy, has been widely applied with good results.

The principle is simple: if a diagnostic block works, PRF or RFA can extend that benefit durably.

Neuromodulation: Peripheral Nerve Stimulation and Spinal Cord Stimulation

For patients with refractory post-traumatic headache or occipital neuralgia who have not achieved adequate relief through the preceding steps, implantable neuromodulation offers a pathway to sustained, reversible pain control without ongoing ablation.

Occipital nerve stimulation (ONS) has been used successfully in cervicogenic headache, post-traumatic headache, and occipital neuralgia — with a 2023 narrative review of 17 long-term studies finding sustained response in 56 percent of patients at 24 months across multiple refractory headache types. Spinal cord stimulation (SCS) at high cervical levels targets the trigeminocervical complex directly, with a 2005 case report specifically documenting its use in post-traumatic cervicogenic headache with near-immediate reduction in pain and improvement in quality of life.

Beyond headache, stellate ganglion block (SGB) — and its longer-acting investigational derivatives — has demonstrated a 53 percent improvement in Neurobehavioral Symptom Inventory scores in patients with comorbid TBI and PTSD, with improvements in headache, brain fog, sleep, anxiety, and cognitive symptoms — suggesting a broad autonomic mechanism relevant to the full PCS syndrome, not just pain.

The Total Patient: Why This Integration Matters

Each of these tools addresses a different layer of the post-traumatic burden. OMT addresses structural somatic dysfunction. Trigger point injections address the myofascial layer. Diagnostic blocks identify and temporarily quiet the specific neural pain generators. Hydrodissection frees entrapped nerves from scar. Palliative injections reduce acute inflammation. Regenerative therapy rebuilds damaged nerve biology. Cryoneurolysis and RFA provide intermediate and durable neurolytic relief. Neuromodulation sustains that relief in the most refractory cases.

No single one of these is sufficient alone. The patient who receives only nerve blocks without addressing the entrapment points maintaining their sensitization will plateau. The patient who receives PRP without first confirming the target with a diagnostic block may not respond. The patient whose cranial somatic dysfunctions are never addressed by trained osteopathic hands may never fully decompress the system driving their symptoms.

Managing the total TBI and post-concussion patient requires holding all of these layers in mind simultaneously — a skill that takes years to develop and a clinical framework rigorous enough to deploy them in sequence.

That framework is what Dr. Mahajer brings to every patient who walks through his doors.

If you have been living with chronic headache, neck pain, cognitive fog, dizziness, or other persistent symptoms after a head injury — and have been told that time is the only answer — know that there are answers that medicine has already found. The path to them begins with a physician who knows where to look.

ABOUT THE AUTHOR

Dr. Mahajer is double board-certified in Physical Medicine and Rehabilitation and Sports Medicine, fellowship-trained in Interventional Pain and Sports Medicine at the Icahn School of Medicine at Mount Sinai Hospital. He is the Founding Physiatrist of Osso Health in South Florida, with a research focus in regenerative and biologic therapies. He serves as Past President of the American Osteopathic College of Physical Medicine and Rehabilitation and as Assistant Professor of Neuroscience at Florida International University Herbert Wertheim College of Medicine. He holds medical licenses in Florida, New York, and California. A published author and book chapter contributor, his work appears in peer-reviewed journals and texts from Oxford University Press, Human Kinetics, and Springer. He has been featured in Vogue, US News & World Report, PBS, and Healio, and has been recognized as a Top Physiatrist and Top Doctor in Florida and New York, a New York Times Rising Star, and one of America's Best Doctors.