Nerve Damage Injuries in Los Angeles County: The Burning, Numbness, and Weakness That Often Gets Missed and What Your Claim Is Actually Worth 

Nerve injuries are different from every other injury category in one crucial way: they communicate in a language most people are not used to hearing from their own bodies.

A broken bone produces pain at the fracture site. A muscle strain produces soreness in the strained muscle. These injury patterns make intuitive sense. But nerve injuries are different. They can cause burning pain in areas that were not directly injured, electric shock sensations that travel down the arm or leg, numbness in specific fingers or toes, weakness in muscles that should otherwise work normally, and in some cases extreme sensitivity where even the light touch of clothing produces significant pain.

These nerve damage symptoms are specific, recognizable, and—with the right medical evaluation—objectively documentable. Yet they are also the type of symptoms that insurance adjusters often dismiss more aggressively than almost any other injury category. This happens because nerve injuries are invisible, because they do not show up on a standard X-ray, and because they are described in subjective terms—burning, electric, shooting—that adjusters are trained to characterize as exaggeration.

The tools to prove nerve injuries exist. The medical specialists who can diagnose nerve damage exist. And the legal framework to recover full compensation for nerve injuries exists in California personal injury law. What is missing in too many cases is the connection between the injured person, the right medical evaluation, and an attorney who understands what the medical evidence means and how to present it.

This page explains nerve injuries in plain English—what they are, what they feel like, how they are proven with medical testing and expert opinions, and what they are worth in the Los Angeles County personal injury market. Nothing here is legal advice. A free case evaluation is available to discuss a specific situation with a qualified California personal injury attorney.

What a Nerve Actually Does and What Happens When It is Damaged

The nervous system is the body’s primary communication network — the wiring that connects the brain to every muscle, organ, and patch of skin. Through this complex system, signals travel outward from the brain, telling muscles to contract, glands to secrete, and blood vessels to dilate or constrict. Signals also travel inward, providing the brain with constant information about touch, temperature, pain, and the position of the limbs in space.

A peripheral nerve — the type most often injured in accidents and personal injury cases — functions much like a sophisticated fiber-optic cable. It can be imagined as a bundle of thousands of individual wires, each insulated from the others, grouped into smaller bundles, and wrapped together in a tough outer sheath. Every single wire carries a specific signal: one wire may transmit the command to the index finger extensor muscle, another may carry sensation from the tip of the ring finger, and another may control the sweat glands in the palm.

When this cable-like nerve is damaged — compressed, stretched, crushed, or cut — the signals can no longer travel normally. Depending on how the nerve injury occurs and how severe it is, the consequences can range from a brief disruption that fully resolves to a permanent loss of function that no amount of time, therapy, or medical treatment will restore.

Understanding the difference between these possible outcomes — and what each one means for long-term health, daily life, and any potential legal claim — is the focus of this page. 

Three Levels of Nerve Injury: From Temporary to Permanent

Medical professionals use a classification system to describe nerve injuries by their severity — and that classification directly determines the prognosis for recovery and the framework for legal damages. Here is a plain-English translation.

Level One: The Nerve is Irritated But Intact

Neuropraxia: the mildest form of nerve injury

The mildest type of nerve injury — called neuropraxia — occurs when a nerve is compressed, stretched, or irritated but not structurally damaged. In neuropraxia, the nerve fiber itself remains intact, and the protective coverings around the nerve are not harmed. Instead, the electrical signal is temporarily blocked at the injury site, similar to a kink in a garden hose that stops the water from flowing without damaging the hose itself. Once the pressure or irritation is removed and the “kink” is released, normal nerve conduction returns, and the nerve resumes sending signals as it did before the injury. In medical terms, neuropraxia is considered a reversible conduction block rather than a true break, tear, or permanent disruption of the nerve.

Common symptoms and everyday examples of neuropraxia

The numbness, tingling, or “pins and needles” sensation that occurs when an arm or leg “falls asleep” in an awkward position is a classic example of neuropraxia. In this situation, a nerve is temporarily compressed, the signal is briefly blocked, and full function returns once the pressure is relieved. Similar temporary nerve compression can happen when crossing the legs for too long, leaning on an elbow on a hard surface, or wearing tight equipment, braces, or restraints that press on a nerve.

In accident or injury cases, neuropraxia usually resolves within days to weeks after the cause of the compression is addressed — for example, when swelling goes down, a cast is adjusted, or pressure from a seatbelt, splint, or brace is removed. During the recovery period, symptoms often improve gradually, typically beginning with a reduction in numbness and tingling, followed by a progressive return of normal strength, coordination, and function.

Neuropraxia damages and recovery in the nerve injury spectrum

Within the spectrum of nerve injuries, neuropraxia produces the most modest level of damages because the injury, while real, is temporary and does not involve permanent nerve destruction. The damages are tied to the recovery period and the functional limitations experienced during that time. These may include time away from work, restrictions in daily activities, and the discomfort, inconvenience, and loss of normal function while the nerve signal is blocked.

Because neuropraxia does not typically cause lasting nerve damage, permanent consequences are not expected. Once the nerve recovers and normal function returns, there is no ongoing impairment. As a result, both legal and medical evaluations focus on the short-term impact of the neuropraxia — such as pain, temporary disability, and reduced quality of life during healing — rather than on lifelong disability or permanent loss of function. 

Level Two: The Wire Is Cut But the Insulation Is Intact

What Is Axonotmesis? Understanding Intermediate Nerve Injury

The intermediate nerve injury — called axonotmesis — occurs when the nerve fiber (axon) itself is torn, but the surrounding connective tissue sheaths that organize and protect the nerve remain intact. In other words, the electrical “wiring” inside the nerve is damaged, but the natural tubes and channels that hold those fibers in place are still present.

Using a fiber‑optic cable analogy, the individual wires inside are broken, but the outer insulating jacket around each wire group is still in place. This distinction is critically important in nerve injury and nerve regeneration because those intact sheaths provide a scaffold — a roadway — for the nerve to regrow along.

Without that built‑in guide, the regenerating nerve fibers could wander, misconnect, or form painful neuromas instead of reconnecting with their original muscle and skin targets. The nerve does not spring back immediately after axonotmesis. It regrows slowly from the injury site outward — at approximately one millimeter per day, or about one inch per month.

This rate of nerve regeneration can vary somewhat from person to person and can be influenced by age, overall health, the severity of the nerve damage, and the specific nerve involved, but it is always measured in millimeters, not inches, per day. The intact sheaths guide the regenerating nerve toward its correct destination, helping the new fibers find the exact muscles and areas of skin they originally served.

Recovery From Axonotmesis and Nerve Regrowth

Recovery from axonotmesis is possible — but it is slow and may be incomplete. Even when the nerve fibers do grow back through the preserved sheaths, some fibers may not reconnect, and the quality of the nerve signal may not be as strong or as precise as before the injury.

In practical terms, a nerve injury at the shoulder that needs to regrow all the way to the hand muscles — a distance of perhaps 24 to 30 inches — could theoretically take two to three years for the regenerating nerve to cover that distance. During that time, the muscles and sensory areas waiting for their nerve supply are essentially “on hold,” receiving little or no useful input.

Along the way, if the target muscle has been without its nerve supply for too long, it may undergo irreversible atrophy — becoming permanently scarred and unable to function even when the nerve finally arrives. This is why, in many treatment plans for peripheral nerve injury, physical therapy, splinting, and sometimes surgical interventions are used to protect joints, maintain as much muscle health as possible, and give the regenerating nerve the best chance to restore meaningful function.

Why Early Diagnosis and Treatment of Nerve Injuries Matter

This is why prompt diagnosis and appropriate treatment of significant nerve injuries matters so much — the window for meaningful recovery is not unlimited. Early evaluation helps determine whether the nerve is likely to recover on its own, whether it needs surgical repair or grafting, and how to support the affected muscles and joints while the slow process of nerve regrowth takes place.

Acting within this critical time frame can be the difference between partial, useful recovery and permanent loss of strength, coordination, or sensation after a nerve injury.

Level Three: The Cable Is Completely Cut

Neurotmesis: The Most Severe Type of Nerve Injury

The most severe nerve injury — called neurotmesis — occurs when the nerve is completely severed, including the surrounding tissue sheaths. In this situation, not only are the individual nerve fibers cut, but the protective and organizing layers around them are also disrupted. There is no structural scaffold left for nerve regeneration.

Without the guiding structure of the intact sheaths, the regenerating nerve fibers grow in a disorganized way, producing a tangled, painful mass called a neuroma rather than directed growth toward the original target. This neuroma can be extremely sensitive, causing sharp, electric, or burning nerve pain even with light touch or pressure, and can interfere with normal use of the affected limb in daily activities.

Spontaneous Recovery and the Need for Surgery

Spontaneous recovery from a complete nerve severance does not occur in any functionally meaningful sense. The body may attempt to heal, but the disorganized regrowth does not restore coordinated movement or normal sensation. Without proper alignment, the damaged nerve cannot reliably transmit signals to muscles or sensory areas.

Surgical intervention is required for neurotmesis. The torn nerve ends must be identified, trimmed, and either directly repaired or bridged with a nerve graft from another part of the body. In some cases, microsurgical techniques are used to carefully align the tiny nerve fascicles, and when a gap is too large to close directly, a segment of donor nerve is taken from a less critical area to serve as a living conduit for regrowth.

Outcomes After Neurotmesis and Nerve Repair

Even with excellent nerve surgery, complete recovery from a neurotmesis is rare. The regenerating fibers may not all find their correct targets, and the repaired nerve conducts signals differently than the original, uninjured nerve. As a result, strength, coordination, and sensation are often only partially restored.

Motor recovery — the return of muscle strength and control — is generally less complete than sensory recovery. Fine, precise movements, such as those needed for writing, buttoning clothes, or manipulating small objects, are especially difficult to regain. If too much time passes before the surgical repair is performed, the target muscles may be beyond recovery regardless of how good the nerve repair is.

Muscles that remain denervated for too long can shrink, stiffen, and lose their ability to respond, leading to permanent weakness, deformity, and functional limitations. This long-term muscle damage further reduces the chances of full functional recovery after a severe peripheral nerve injury.

Long-Term Impact of Complete Nerve Severance

Complete nerve severance requiring surgical repair with incomplete recovery — particularly of major peripheral nerves affecting the hand, the foot, or major muscle groups — produces some of the most significant damages in the nerve injury spectrum. Such injuries can alter independence, employment, and quality of life, often necessitating long-term rehabilitation, adaptive strategies, and ongoing medical care to manage pain, weakness, and loss of function.

The Most Common Nerve Injuries Seen in Los Angeles Accident Cases

Different accident types in Los Angeles County produce predictable patterns of nerve injury — based on the forces involved, the parts of the body most exposed, and the specific anatomy of the peripheral nervous system. Here is what to know about the most common ones. 

Pinched Nerve Roots: When the Spine Compresses the Nerve at Its Origin

Radiculopathy as a Common Nerve Injury in Los Angeles Accident Cases

The most common nerve injury seen in Los Angeles County accident and personal injury cases is not a peripheral nerve injury at all — it is radiculopathy. Radiculopathy is the compression or irritation of a nerve root at the level of the spine — the point where the nerve exits from the spinal canal through the small openings between the vertebrae. When that space narrows because of trauma from a car accident, swelling, a herniated disc, or bone spurs, the nerve root can become pinched, inflamed, and irritated. This can produce pain, numbness, tingling, and other neurological symptoms that travel far away from the actual site of the spinal injury.

How Radiculopathy Causes Arm and Leg Pain

This condition is described in detail on the back and spine injury page — including the specific patterns of arm pain and leg pain that correspond to compression at particular cervical and lumbar levels of the spine. For example, compression in the cervical spine may cause pain, numbness, tingling, or weakness that travels from the neck into the shoulder, arm, and hand. Compression in the lumbar spine may send similar symptoms into the buttock, thigh, calf, or foot. These predictable “dermatomal” patterns help doctors and spine specialists pinpoint which nerve root is affected and distinguish radiculopathy from more generalized back strain, soft-tissue injury, or simple muscle spasm.

Radiculopathy as Nerve Damage, Not Just a Back Problem

The important point in the nerve damage context is that radiculopathy is a true nerve injury — not just a routine back problem — and it can produce permanent neurological deficits if the compression is severe or prolonged. Ongoing pressure on a nerve root can lead to chronic pain, persistent numbness, loss of reflexes, and even muscle atrophy and weakness that interfere with walking, lifting, gripping, and other everyday activities. In serious cases, individuals may be left with lasting functional limitations that affect work, household responsibilities, recreational activities, and overall quality of life after an accident.

Electrodiagnostic Testing to Prove Radiculopathy

Electrodiagnostic testing — discussed below — is the objective medical tool that confirms radiculopathy and establishes the severity of the nerve root involvement. These studies, which typically include nerve conduction studies and electromyography (EMG), measure how well the nerves and muscles are functioning and whether there is evidence of ongoing nerve irritation or damage. The presence of abnormal electrodiagnostic findings in the medical record significantly strengthens a back and spine injury claim by converting the subjective complaint of radiating arm or leg pain into objectively documented nerve root injury. When electrodiagnostic results line up with the clinical examination and imaging studies such as MRI or CT scans, they provide powerful support for the diagnosis of radiculopathy and help demonstrate the true impact of the injury in a clear, medically verifiable way for both treating physicians and legal decision-makers.

Wrist Drop: Radial Nerve Injury

The radial nerve runs along the back of the upper arm, winding around the humerus in a shallow groove that makes it especially vulnerable to compression and traumatic injury. This major peripheral nerve powers the muscles that extend the wrist and lift the fingers upward, playing a critical role in normal hand and arm function.

When the radial nerve is injured — whether from a direct blow to the upper arm, a humerus fracture at the point where the nerve runs closest to the bone, or from prolonged compression of the arm in a vehicle accident or similar event — the classic result is wrist drop. In wrist drop, the wrist falls forward and cannot be lifted against gravity. The fingers cannot be extended at the knuckles, and the hand appears and functions like a dead weight hanging from the end of the arm.

Wrist drop is immediately and profoundly functionally disabling. Gripping, holding, and manipulating objects all require a stable, extended wrist position, which radial nerve palsy and wrist drop eliminate. A wrist splint can provide some functional support and partial positioning, but it does not restore normal hand strength, coordination, or fine motor control.

Most radial nerve injuries from arm compression or humeral shaft fractures are neuropraxia or mild axonotmesis. In these cases, the nerve is irritated or the internal fibers are torn, but the outer sheaths remain intact, and spontaneous recovery is usually expected over three to six months as the nerve heals. However, during that recovery period the person cannot use the affected hand normally, which has significant implications for any job requiring manual dexterity, as well as for essential daily life activities such as dressing, cooking, driving, and personal care that most people take for granted. 

Foot Drop: Peroneal Nerve Injury

The common peroneal nerve wraps around the outside of the knee — just below the knee at the top of the fibula — in a position so exposed that it can be injured by direct impact to the lateral knee, by prolonged pressure against the outer leg, or by the severe torsional forces of a knee dislocation. This vulnerable location makes the common peroneal nerve one of the most frequently injured nerves around the knee.

The peroneal nerve controls the muscles that lift the foot upward (dorsiflexion) and turn it outward (eversion). When this nerve is injured, those muscles stop working — and the result is foot drop, a common cause of gait problems. The foot cannot be lifted during the swing phase of walking, so the toe drags on the ground with every step.

People with foot drop often learn to compensate by lifting the knee excessively to clear the dragging toe — a high-stepping gait that is tiring, conspicuous, and associated with a significantly increased risk of tripping and falling. This abnormal walking pattern can lead to fatigue, joint strain, and reduced mobility over time.

A foot drop splint — an ankle-foot orthosis (AFO) — supports the foot in a neutral position and allows safer walking by preventing the toes from catching on the ground. However, it must be worn inside the shoe at all times when walking to provide continuous support and stability.

Peroneal nerve injuries that do not recover fully — producing permanent foot drop — require permanent orthotic use, significantly affect walking endurance and safety, and in some cases require tendon transfer surgery to try to partially restore function. In severe or chronic cases, surgical treatment may help improve foot position and reduce the risk of falls, but full recovery of normal movement is not always possible.

Brachial Plexus Injuries: The Most Devastating Nerve Injury in Los Angeles County Accident Cases

The brachial plexus is a complex network of nerve roots that emerges from the lower neck and supplies the entire arm, from the shoulder down to the fingertips. Five major nerve roots combine and divide into a branching network of nerves that controls every movement and every sensation in the arm.

In high-energy accidents — particularly motorcycle accidents, high-speed vehicle rollovers, and pedestrian accidents — violent forces applied to the head, neck, and shoulder can stretch, tear, or completely disrupt the brachial plexus. This type of traumatic brachial plexus injury typically occurs when the head is forced away from the shoulder on one side, widening the angle between the neck and the shoulder, and stretching the nerve roots until they are damaged or avulsed — torn away from the spinal cord itself.

A complete brachial plexus injury is the functional equivalent of an amputation. The affected arm is completely paralyzed and anesthetic, with no voluntary movement and no sensation from the shoulder to the fingertips. Unlike an amputation, however, the person still has the arm — but it hangs uselessly, a constant physical reminder of what the accident took away. Many individuals also experience severe chronic neuropathic pain — the pain of a deafferented limb — often described as one of the most agonizing pain experiences imaginable, occurring in a limb that cannot be felt normally.

Root avulsions — the most severe form of brachial plexus injury, in which the nerve roots are torn directly from the spinal cord rather than injured within the plexus — cannot be repaired with traditional nerve surgery. There is no proximal nerve stump available for standard nerve grafting techniques. Reconstructive options instead involve nerve transfer procedures, borrowing a functioning nerve from another part of the body and connecting it to the injured nerve’s target. These advanced nerve transfer surgeries can restore some degree of function, but they cannot fully replicate the original strength, coordination, or sensation of a healthy brachial plexus.

Complete brachial plexus injuries are among the highest-value nerve injury cases in Los Angeles County. The combination of total functional loss of an entire upper extremity, severe chronic neuropathic pain, the substantial surgical costs of nerve reconstruction attempts, the need for adaptive equipment and assistive devices, and the profound non-economic impact of living with a functionless arm regularly produces seven-figure results in clear-liability personal injury and catastrophic injury cases.

Complex Regional Pain Syndrome: When the Pain System Itself Gets Injured

Complex Regional Pain Syndrome (CRPS) After an Accident

Of all the nerve-related conditions that can develop after an accident, complex regional pain syndrome (CRPS) is one of the most serious and disabling. In many personal injury and accident cases, CRPS is associated with some of the most severe suffering and, in well-documented claims, some of the most significant damages in all of personal injury law. This chronic pain condition can affect every aspect of daily life, from the ability to work and care for family to the simple capacity to sleep, walk, or even tolerate light touch or changes in temperature. In many legal claims, CRPS becomes the central issue because it explains why a seemingly modest injury has led to life-altering pain, long-term disability, and the need for ongoing medical treatment.

How CRPS Develops After a “Minor” Injury

CRPS is not always the result of a dramatic or visibly catastrophic nerve injury. It can develop after almost any type of trauma — sometimes a broken wrist, sometimes a sprained ankle, sometimes an injury that most people would consider minor. What makes CRPS so devastating is not what the initial injury did to the tissue — it is what the initial injury triggered in the pain processing system itself. Instead of healing in a predictable way, the nervous system can become stuck in a state of overreaction, sending constant, exaggerated pain signals long after the original damage should have resolved. This can lead to burning pain, swelling, changes in skin color and temperature, muscle weakness, and extreme sensitivity to touch or movement. Because the outward signs of the original injury may appear small, the true impact of CRPS is often misunderstood or underestimated by insurers, defense experts, and even some medical providers, which is why careful medical documentation, specialist evaluation, and clear explanation of the condition are so critical in any serious injury or personal injury case involving complex regional pain syndrome.

What CRPS Feels Like: In the Words of People Who Have It

The McGill Pain Questionnaire (the most widely used standardized pain assessment tool in clinical research) consistently rates Complex Regional Pain Syndrome (CRPS) pain among the most severe of any condition measured. CRPS pain scores higher than cancer pain, higher than childbirth, and higher than amputation.

People living with CRPS often describe an intense burning in the affected limb — usually an arm or a leg — that is constant, severe, and unlike anything experienced before the original injury or accident. For many, it feels as if the limb is on fire, crushed in a vise, or wrapped in barbed wire all at once, and this extreme pain can persist day and night without meaningful relief.

The affected area frequently looks and feels different from the unaffected side. It may show a different color or temperature and a noticeably different skin texture. The limb can appear swollen or shiny, or the skin may become thin, fragile, and easily damaged. Hair and nail growth can change, muscles can weaken or waste away, and joints can stiffen, making movement difficult or even impossible.

The skin can become so sensitive that the light touch of a bed sheet produces significant pain. Many people with CRPS cannot tolerate a breeze on the skin, the vibration of a car ride, or the gentle pressure of clothing or socks. Everyday activities such as walking, typing, or holding a cup can become intensely painful or completely unmanageable.

These symptoms are not imagined or exaggerated. CRPS is a real, medically recognized neurological pain disorder with a documented neurobiological basis. The sympathetic nervous system, which normally regulates blood flow and temperature, becomes abnormally active in the affected region. This dysregulation can cause blood vessels to constrict or dilate unpredictably, leading to dramatic shifts in color and temperature and contributing to swelling, tissue changes, and ongoing pain.

At the same time, the central pain processing system becomes sensitized, amplifying pain signals and generating pain from stimuli that should not be painful. Nerves in the spinal cord and brain begin to “overreact,” so that even mild input is interpreted as severe pain, and pain can continue long after the original injury has healed. Over time, this relentless barrage of pain signals can alter brain pathways involved in sensation, movement, and emotion, reinforcing a cycle of chronic pain, functional loss, and disability.

The condition is real, physiological, and can be objectively documented with appropriate clinical tools. Specialized examinations — including quantitative sensory testing, thermography, bone scans, and autonomic function tests — can demonstrate the characteristic changes in nerve function, blood flow, and tissue health that define CRPS. These findings provide clear, measurable evidence that Complex Regional Pain Syndrome is a serious, complex neurological pain disorder, not a psychological reaction and not a matter of “toughing it out.”

How CRPS Is Diagnosed: The Budapest Criteria

Because CRPS cannot be identified on an X-ray or a standard MRI, the insurance company's favorite attack is to say there is no objective basis for the diagnosis. The answer to that attack is the Budapest Criteria — the internationally recognized diagnostic framework for CRPS developed by a consensus of pain specialists and validated in published research. These criteria were created specifically to bring clarity and consistency to CRPS diagnosis, replacing older, looser definitions with a structured, evidence-based approach that can be applied in clinics and courtrooms alike. When properly used, the Budapest Criteria provide a clear, medically accepted foundation that directly counters the argument that CRPS is “just subjective pain.”

The Budapest Criteria require the presence of specific symptoms the patient reports — burning pain, skin color changes, temperature asymmetry, swelling, sweating changes, reduced range of motion — combined with specific signs the examining physician observes and documents at the time of examination. These signs can include visible differences between the affected and unaffected limb, such as shiny or thin skin, abnormal hair or nail growth, or clear temperature and color differences that can be felt and seen in the exam room. The criteria also look at how pain responds to light touch or movement, and whether normal activities trigger disproportionate pain. By requiring both reported symptoms and observable signs across several categories, the Budapest Criteria create a structured checklist that translates a complex pain condition into a documented, reproducible medical diagnosis.

When a pain management specialist or neurologist performs a systematic examination specifically looking for Budapest Criteria findings — and documents those findings in detail — the diagnosis of CRPS is established through a recognized diagnostic protocol, not just a subjective complaint. That is what changes the conversation with the insurance company. Instead of arguing over whether the pain is “real,” the discussion shifts to a medically grounded record showing that the patient meets an internationally accepted standard. Detailed notes describing each symptom and sign, how long it has been present, and how it affects function give the claim a level of credibility and objectivity that generic chart entries cannot provide. Thorough documentation also helps other treating providers, independent medical examiners, and even courts understand the basis for the diagnosis and why it should be taken seriously.

A CRPS diagnosis documented by a specialist who applied the Budapest Criteria is substantially more difficult to challenge than a vague reference to burning pain in a treating physician's note. Insurers may still try to dispute the extent of disability or the need for certain treatments, but it becomes much harder for them to deny that CRPS is present when the record shows a careful, criteria-based evaluation. In many cases, a well-documented Budapest Criteria assessment can be the difference between a claim being dismissed as “unproven” and a claim being recognized as medically supported. Getting to the right specialist early — a pain management physician or neurologist with specific CRPS experience — is one of the most important steps in building a CRPS claim. Early referral increases the chances that key signs will be captured before they fluctuate or fade, helps guide appropriate treatment sooner, and creates a strong, consistent medical record that supports the claim from the very beginning.

Objectively Proving Nerve Injuries After an Accident: Electrodiagnostic Testing

Electrodiagnostic Testing in Nerve Injury Claims

The single most important piece of objective medical evidence in most nerve injury claims is the electrodiagnostic study. This testing combines nerve conduction studies (NCS) and electromyography (EMG), and is performed by a qualified neurologist or physiatrist. It provides clear, measurable proof of nerve damage that can be used in both medical treatment and legal claims.

How Nerve Conduction Studies (NCS) Work

The nerve conduction study works like this: the technician places electrodes on the skin at specific points along the course of a nerve and sends a small electrical pulse. The pulse travels along the nerve and produces a measurable response at the electrode on the other end. The speed of that travel — the conduction velocity — and the strength of the response — the amplitude — are both measured.

A nerve that has been damaged conducts more slowly. A nerve that has lost fibers produces a smaller amplitude response. A nerve that is completely blocked at a specific point produces a normal response when stimulated below the block and no response when stimulated above it — clearly identifying the exact location of the compression or entrapment.

How Electromyography (EMG) Detects Nerve Damage

The EMG portion is different. The neurologist inserts a small needle electrode into specific muscles and records their electrical activity at rest and during voluntary contraction. A normal muscle is electrically silent at rest. A muscle whose nerve supply has been disrupted produces spontaneous electrical activity at rest — specific patterns called fibrillation potentials and positive sharp waves — that are the electrical signature of denervation.

These EMG findings typically appear two to four weeks after nerve injury and persist as long as the muscle remains without its nerve supply. This makes EMG a powerful tool for confirming ongoing nerve damage and denervation.

Why NCS and EMG Matter in Nerve Injury Claims

Together, NCS and EMG can tell a neurologist — and an attorney handling a nerve injury claim — exactly which nerve is injured, exactly where the injury is located, how severe the injury is, and whether active denervation is occurring. That information is objective, documented, and reproducible — the opposite of the "subjective complaints" characterization that insurance adjusters often apply to nerve injury symptoms.

Timing of EMG Testing After an Accident

One timing note that matters for a nerve injury claim: denervation findings on EMG do not appear until two to four weeks after the nerve injury. An EMG performed in the first week after an accident may appear normal even with a significant nerve injury — simply because the changes have not had time to develop.

If an early EMG after an accident was normal, that does not necessarily mean the nerve is uninjured — it may mean the test was performed before the relevant findings were detectable. A repeat electrodiagnostic study at three to four weeks provides the meaningful assessment and more reliable evidence of nerve damage. 

What the Insurance Company Will Argue About Your Nerve Injuries and Why Those Arguments Are Weak

Nerve injury cases in Los Angeles County face predictable defense arguments. Here is what to expect. 

"Your Nerve Symptoms Are Subjective and There Are No Objective Findings of Nerve Damage"

The response to this argument is the electrodiagnostic study, a specialized neurological test that provides measurable, reproducible data about how nerves and muscles are functioning. These objective findings are essential in accurately diagnosing nerve and muscle disorders and in countering claims that symptoms are "purely subjective."

Fibrillation potentials on EMG are not subjective — they are precise electrical measurements recorded by equipment that detects abnormal spontaneous activity in muscle fibers, even when the muscle appears relaxed on clinical examination. These EMG findings help identify nerve damage, muscle disease, and other neuromuscular conditions with a high degree of reliability.

Slowed conduction velocity on nerve conduction studies is not subjective — it is a measured time that reflects how quickly an electrical impulse travels along a nerve, allowing comparison with established normal values. Abnormal nerve conduction results can demonstrate neuropathy, nerve compression, or other pathology in a clear, quantifiable way.

When the electrodiagnostic study has been properly performed and interpreted by a qualified neurologist, using standardized techniques and evidence-based criteria, the "purely subjective" argument has an objective answer. The results are supported by quantifiable findings that can be documented, reviewed, and independently verified, providing strong medical evidence of nerve and muscle function.

"Your Nerve Injuries Are Pre-Existing: Probably Related to Diabetes, Prior Compression, or Wear and Tear"

Pre-existing peripheral neuropathy and accident-related nerve injury

Pre-existing peripheral neuropathy — most commonly from diabetes — is often used by an insurance company as the primary alternative explanation for objective nerve injury findings after an accident. In many personal injury and accident claims, insurers argue that abnormal nerve conduction or EMG results are due solely to long-standing diabetic neuropathy rather than to a new traumatic nerve injury.

The most effective response is a clear, detailed opinion from the treating neurologist or electrodiagnostician explaining how the accident-related nerve damage is distinguishable from any pre-existing neuropathy. An experienced electrodiagnostician can typically make this distinction by analyzing the specific pattern, distribution, and character of the findings on nerve conduction studies and EMG testing.

For example, chronic diabetic neuropathy usually produces a length-dependent, symmetric pattern of nerve damage, often starting in the feet and progressing slowly over time. By contrast, a new traumatic nerve injury from an accident tends to show a focal, asymmetric, or dermatomal pattern that clearly correlates with the mechanism of trauma and the clinical history, such as a collision, fall, or crush injury.

Detailed nerve conduction studies and EMG testing can reveal whether the abnormalities are more consistent with long-standing metabolic damage from diabetes or with a recent, localized insult caused by an accident. A careful comparison with any prior electrodiagnostic studies, medical records, or baseline examinations can further clarify what is truly new versus what is pre-existing.

When the neurologist explains these distinctions in clear, objective, and medically grounded terms, it becomes much harder for an insurer to dismiss the accident-related component of the nerve injury as merely a manifestation of diabetes or other chronic neuropathy. Thorough documentation of the new pattern of nerve damage, along with a reasoned medical causation opinion, is critical for supporting an accident-related neuropathy or radiculopathy claim.

Eggshell plaintiff doctrine (CACI 3927) and diabetic neuropathy

The eggshell plaintiff doctrine under CACI 3927 applies to nerve injury cases just as it does to every other injury category. Under this legal principle, a person with pre-existing diabetic neuropathy who sustains a new acute nerve injury from an accident is entitled to full compensation for the new injury, even if the pre-existing condition made that person more vulnerable to harm.

This doctrine recognizes that the responsible party must take the injured person as found, including any underlying medical conditions that increase the severity, complexity, or duration of the injury. The presence of diabetic neuropathy, peripheral nerve disease, or other neurological vulnerability does not reduce the legal responsibility for the additional damage caused by the accident.

Thus, if an individual with mild, stable neuropathy experiences a collision that causes a superimposed radiculopathy, plexopathy, or focal nerve entrapment, the law does not allow the insurer to discount the claim simply because the nerves were already compromised. Instead, the focus is on identifying and compensating the incremental damage caused by the accident, including:

• New or worsened pain, burning, or dysesthesia
• New weakness or loss of motor function
• New sensory loss, numbness, or tingling in a distinct distribution
• New functional limitations affecting work, daily activities, or mobility

Under CACI 3927, the aggravation or acceleration of a vulnerable nervous system is fully compensable. The presence of diabetic neuropathy is a reason to carefully document the new injury, its impact, and its progression — not a justification to deny or minimize the claim. Proper medical documentation, electrodiagnostic testing, and clear expert explanation of how the accident worsened or added to the pre-existing neuropathy are essential for accurately valuing and supporting the nerve injury case.

"Complex Regional Pain Syndrome (CRPS) Is Not Real: It's Merely Psychological"

The accusation that Complex Regional Pain Syndrome (CRPS) is malingering or “faked” is one of the most insulting — and most damaging — arguments CRPS patients face. It quietly undermines credibility, suggests that the pain is “all in the head,” and can shape how family members, employers, insurers, and even some clinicians view the legitimacy of this chronic pain condition. When this claim is not clearly and confidently refuted, it can lead to delayed diagnosis, denial of necessary medical care, barriers to disability benefits, and deep emotional distress on top of an already debilitating neuropathic pain disorder.

The primary evidence-based response is the Budapest Criteria documentation — specific, objective clinical signs recorded by a specialist who performs a systematic examination — combined with the growing body of neurobiological research on what CRPS actually is. These internationally recognized diagnostic criteria include findings such as changes in skin color and temperature, altered sweating, swelling, motor dysfunction, and sensory abnormalities like allodynia and hyperalgesia, all observed and documented in a structured way. When a pain specialist, neurologist, or other qualified clinician correctly applies the Budapest Criteria, the result is a clear, reproducible clinical picture of CRPS that can be reviewed by other professionals and used to support accurate diagnosis, individualized treatment planning, and medical-legal documentation.

Abnormal sympathetic nervous system activity, central sensitization, and measurable temperature and color asymmetry in the affected limb are objective neurological and autonomic findings, not psychological ones. These changes can be captured with tools such as thermography, quantitative sensory testing, and careful physical examination, demonstrating that the nervous system is misfiring in ways that produce real, ongoing pain and autonomic dysfunction. The presence of these signs across multiple visits, and sometimes across multiple independent examiners, reinforces that CRPS is a complex neurological and inflammatory pain condition rather than a product of exaggeration, secondary gain, or imagined symptoms.

Neuropsychological testing with passed validity measures — demonstrating that the patient was genuinely trying their best during cognitive and pain assessment — also provides powerful objective counter-evidence to the malingering argument. These comprehensive evaluations use standardized tests and embedded validity indicators to assess attention, memory, processing speed, mood, and pain-related interference, while simultaneously checking for inconsistent effort or symptom over-reporting. When a patient with CRPS meets validity criteria yet still shows patterns of cognitive and functional impact consistent with chronic pain, autonomic dysregulation, and central sensitization, it strongly supports the conclusion that the reported difficulties are authentic, medically grounded, and deserving of appropriate treatment, accommodations, and long-term support.

"The Nerve Damage Should Have Healed By Now"

Recovery timelines for nerve injuries depend on many factors, including the type of nerve injury, the location, the distance from the injury to the target muscle or sensory area, the patient's age, and numerous other health and lifestyle factors. There is no single, universal recovery timeline for peripheral nerve damage, and even injuries that appear similar on the surface can heal at very different rates. Some nerves may gradually recover function over several months, while others may take years to show meaningful improvement, or may never fully return to their prior state. The pattern of symptoms, the presence and severity of pain, weakness, tingling, or numbness, and the way these symptoms change over time all play a key role in how nerve recovery is evaluated and documented.

An insurance adjuster who claims that a nerve injury “should be better by now” is expressing a financial preference or claim-handling position, not a qualified medical opinion. Such statements are often based on generalized assumptions, cost-saving goals, or simplified recovery charts rather than on the actual medical evidence in a specific case. They typically do not take into account the complexity of nerve healing, the possibility of delayed nerve regeneration, or complications such as scar tissue formation, ongoing nerve compression, chronic inflammation, or associated muscle, tendon, and soft-tissue damage that can slow or limit recovery.

The treating neurologist's specific assessment of the expected recovery trajectory for a nerve injury — based on electrodiagnostic findings, a detailed clinical examination, and the published medical literature on recovery from that specific type and location of nerve damage — is what carries medical weight. This expert evaluation includes careful interpretation of nerve conduction studies and EMG results, comparison with prior tests to track nerve regeneration, and correlation with real-world function such as grip strength, balance, coordination, and fine motor control. The neurologist relies on peer-reviewed research, evidence-based clinical guidelines, and experience with similar peripheral nerve injuries to estimate how much recovery is realistic, how long it may take, and what additional treatments, rehabilitation therapies, pain management strategies, or surgical options might improve the long-term outcome.

What Nerve Damage Personal Injury Cases Are Worth in Los Angeles County

Nerve Damage Case Values in Los Angeles County

Nerve damage cases in Los Angeles County span one of the widest value ranges of any personal injury category, from modest settlements for temporary nerve compression to some of the largest personal injury verdicts and settlements in California for complete brachial plexus injuries and severe CRPS (Complex Regional Pain Syndrome). This overview explains, in plain English, how nerve injury cases are typically valued in the Los Angeles legal market.

Temporary Nerve Compression (Neuropraxia)

Temporary nerve compression — neuropraxia — with complete recovery within weeks to a few months generally produces case values that reflect:

• The length of the recovery period
• The degree of functional limitation during that time
• Medical expenses, including electrodiagnostic testing and specialist evaluations

These claims are often valued similarly to serious soft tissue injury cases, but with an added nerve component, rather than being treated as major permanent nerve injury cases.

Axonotmesis and Permanent Residual Deficits

Axonotmesis with a significant residual deficit — such as permanent numbness in a specific area or permanent partial weakness in a muscle group — produces substantially higher settlement and verdict values. The permanent nature of the deficit is critically important in California personal injury law.

A permanent partial weakness of the hand — even when the person can still work and function — can affect:

• Daily activities and independence
• Work capacity and future earning potential
• Overall quality of life and enjoyment of life

These specific, ongoing limitations are compensable under California law and often drive higher non-economic damage awards in Los Angeles County courts.

Major Peripheral Nerve Injuries Requiring Surgery

Major peripheral nerve injuries that require surgical repair — including nerve grafting or nerve transfer — and result in incomplete recovery typically generate significant case values. These reflect:

• Surgical and hospital costs
• Prolonged rehabilitation and recovery time
• Permanent functional deficits and disability

When the injured nerve is critical to a person’s occupation, the vocational impact can create very substantial economic damages. Examples include:

• A musician with a radial nerve injury
• A surgeon with median nerve damage
• A carpenter with a torn ulnar nerve

In these situations, loss of earning capacity and career disruption can dramatically increase the value of a Los Angeles County nerve injury case.

Brachial Plexus Injuries in Los Angeles County

Brachial plexus injuries with permanent, significant arm deficits — especially in working-age claimants and clear-liability accidents — regularly produce seven-figure results in Los Angeles County personal injury litigation.

The damages picture often includes:

• Complete or near-complete loss of arm function
• Severe, chronic neuropathic pain
• Costs of surgical reconstruction and follow-up care
• Adaptive equipment and home or workplace modifications
• A lifetime of living with major upper extremity impairment

Los Angeles County juries — particularly at Stanley Mosk Courthouse in downtown Los Angeles — tend to take these catastrophic nerve injury cases seriously when the evidence clearly documents the long-term impact.

CRPS (Complex Regional Pain Syndrome) Case Values

CRPS cases with permanent, severe pain documented under the Budapest Criteria, supported by spinal cord stimulator implantation and ongoing multidisciplinary pain management, are among the highest-value soft tissue and nerve-related presentations in Los Angeles County.

The McGill Pain Questionnaire rates CRPS pain as more severe than cancer pain and amputation. When that reality is presented to a jury through:

• Specific, detailed medical documentation
• Consistent pain management records
• Human testimony about daily life and limitations

the verdicts and settlements often reflect what the injury has truly cost the person in terms of daily existence, function, and long-term suffering.

Non-Economic Damages and California Law

California does not cap non-economic damages in personal injury cases outside the medical malpractice context. In Los Angeles County, what a jury can award for:

• Permanent nerve injury
• Permanent chronic pain
• A lifetime of physical limitation and disability

is limited only by the strength of the evidence and what jurors determine is fair compensation for what has been taken from the injured person.

Case-Specific Factors in Nerve Injury Valuation

These are general observations about how nerve damage cases are valued in Los Angeles County. Every case is different. Outcomes depend on factors such as:

• The specific nerve or nerve group injured
• The recovery trajectory and prognosis
• The quality and consistency of medical documentation
• The amount of available insurance coverage
• The liability picture and clarity of fault

Only a case-specific evaluation can determine the likely value of a particular nerve damage claim in this jurisdiction.