Spinal Cord Compression After an Accident in Ontario: MRI Findings, Myelopathy and Injury Claims

Spinal cord compression means something is pressing on the spinal cord. After an accident, that pressure can come from a traumatic disc herniation, fracture, dislocation, swelling, bleeding, pre-existing spinal stenosis made symptomatic by trauma, or another injury affecting the spinal canal. In an Ontario injury claim, the important questions concern what caused the compression, whether the spinal cord was damaged, and how the injury affects strength, sensation, balance, walking, bowel or bladder function, independence and work capacity.

This article explains what spinal cord compression can mean in a personal injury claim. For more information about paralysis, incomplete spinal cord injuries, catastrophic impairment, future care and legal options after a serious spinal injury, visit our Ontario spinal cord injury lawyers page.

What Is Spinal Cord Compression?

Spinal cord compression happens when the spinal cord is squeezed or narrowed inside the spinal canal.

The spinal cord carries signals between the brain and the body. When the cord is compressed, those signals can be disrupted. The result can be pain, numbness, weakness, poor balance, hand clumsiness, walking problems, bowel or bladder symptoms, sexual dysfunction, spasticity, or in severe cases, paralysis.

This type of cord compression is much different from an ordinary back strain. It is also different from a pinched nerve root, although the symptoms can overlap. A nerve root problem causes radiating pain, numbness or weakness into an arm or leg. Spinal cord compression can affect more neurological function because the cord itself is involved.

What Can Cause Spinal Cord Compression After an Accident?

Accidents can potentially cause cord compression in several ways. A traumatic disc herniation can push backward into the spinal canal and press on the cord. A fracture can narrow the canal or create instability. A dislocation can shift spinal alignment and compress the cord. Bleeding, swelling or traumatic deformity can reduce the space available for the spinal cord.

Some people already have pre-existing spinal stenosis before the accident. Spinal stenosis means narrowing in the spinal canal. A person can have stenosis without even having symptoms. Then a collision, fall or other accident aggravates the condition, causes new cord compression, or turns a vulnerable spine into a serious neurological injury.

This is a common dispute in injury claims. Insurance companies will try to focus on the pre-existing stenosis. The more important question is whether the accident caused new symptoms, worsened the compression, triggered myelopathy, accelerated deterioration, or caused a loss of function that was not present before.

A person is not required to have a perfect spine before an accident. If trauma turns an asymptomatic or manageable condition into a disabling spinal cord problem, that can still be a serious injury claim.

MRI Findings: Cord Compression, Cord Flattening and Cord Signal Change

MRIs report sometimes refer to cord compression, cervical cord compression, thoracic cord compression, ventral cord compression, dorsal cord compression, flattening of the cord, deformity of the cord, mass effect on the cord, cord impingement, thecal sac effacement, disc herniation contacting the cord, disc osteophyte complex contacting or compressing the cord, central canal stenosis, severe canal stenosis, high-grade stenosis, cord signal change, T2 cord signal abnormality, T2 hyperintensity, cord edema, cord contusion, myelomalacia, cervical myelopathy, traumatic myelopathy or cervical spondylotic myelopathy.

Some of these technical terms describe pressure on the spinal cord. Some describe narrowing around the cord. Some describe changes within the cord. Some suggest chronic injury. Some suggest acute trauma. Some are more serious than others.

The wording needs to be read carefully with the rest of the medical evidence and timing of symptoms. The issues in these cases usually include whether the compression is causing neurological impairment and whether that impairment is connected to the accident.

Does Cord Compression Always Mean Spinal Cord Damage?

No. Cord compression means there is pressure on the spinal cord, but it does not inherently prove permanent spinal cord damage by itself.

The seriousness of the finding depends on the neurological exam, symptoms, imaging, treatment, prognosis and whether the person has signs of myelopathy, weakness, impaired walking, bowel or bladder changes, cord signal change or other objective findings.

People can have cord compression without permanent neurological loss. A person can also have cord compression with serious spinal cord dysfunction, surgery, paralysis, incomplete spinal cord injury or long-term disability.

Cord Compression vs. Spinal Cord Injury

Cord compression and spinal cord injuries are related, but they are not identical.

It is possible that someone has cord compression without permanent cord damage. A person could also have cord compression with myelopathy, cord signal change, weakness, sensory loss, impaired walking, bowel or bladder dysfunction, or permanent neurological impairment.

In some cases, the cord is compressed but the person’s neurological exam is relatively normal. In other cases, the imaging and clinical findings show a serious spinal cord injury. That is why these cases require both imaging evidence and clinical evidence.

What Is Cervical Myelopathy After Cord Compression?

Myelopathy means dysfunction of the spinal cord. When myelopathy develops from spinal cord compression, the symptoms often go beyond ordinary neck or back pain. The person can have clumsy hands, trouble with buttons or handwriting, weakness, numbness, balance problems, falls, abnormal reflexes, spasticity, difficulty walking, or bowel and bladder changes.

Cervical myelopathy is especially important because compression in the neck can affect the arms, hands, trunk, legs, bowel and bladder function. A person with cervical cord compression can have symptoms in the hands and legs even if the main structural problem is in the neck.

Pre-Existing Spinal Stenosis and New Cord Compression After Trauma

Pre-existing stenosis is often used by insurance companies as a defence. They like to argue that the person already had narrowing in the spine and that the accident did not cause the real problem.

Many people have degenerative findings on imaging before they ever have symptoms. Spinal stenosis, disc bulges, osteophytes and degenerative changes can exist quietly for years. The legal issue is not whether the spine was perfect before the accident, but if the accident caused or worsened the person’s symptoms and functional loss.

Important questions will frequently include:

Did the person have neck pain, hand clumsiness, walking problems, bowel symptoms or bladder symptoms before the accident?

Was the person working, driving, exercising, caring for family or living independently before the trauma?

Did neurological symptoms begin after the accident?

Did MRI show new compression, cord signal change, edema, contusion or worsening stenosis?

Did doctors recommend surgery after the accident?

Did the person’s walking, balance, hand use or independence change after the trauma?

When Cord Compression Becomes Urgent

Red flags include new weakness, worsening numbness, difficulty walking, loss of balance, new hand clumsiness, bowel or bladder changes, saddle anesthesia,

progressive neurological symptoms, or signs that the spinal cord is being damaged.

Some people require decompression surgery. Surgery might be removing the structure pressing on the cord, stabilizing the spine, fusing levels, or creating more room in the spinal canal.

Surgery does not automatically mean the claim is serious, and lack of surgery does not automatically mean the claim is minor. The significance depends on the full evidence: imaging, neurological findings, treatment course, prognosis and functional outcome.

How Cord Compression Is Proven in an Ontario Injury Claim

Spinal cord compression cases are usually proven through a combination of medical records, imaging and functional evidence.

MRI evidence is often central. MRI can show whether there is disc herniation, canal stenosis, cord flattening, cord compression, cord signal change, edema, hemorrhage, myelomalacia, ligament injury or other findings affecting the spinal canal.

CT evidence can also matter, especially where there is fracture, dislocation, bony narrowing, surgical hardware or acute trauma.

Clinical records are just as important. A report saying “cord compression” is stronger when the person’s neurological findings match the imaging. Lawyers and experts often look for documented weakness, sensory loss, abnormal reflexes, spasticity, gait problems, hand dysfunction, balance impairment, bowel or bladder symptoms and changes in daily function.

Specialist evidence can come from neurosurgeons, orthopedic spine surgeons, neurologists, physiatrists, occupational therapists, physiotherapists and rehabilitation teams.

How Cord Compression Can Affect Work and Daily Life

Spinal cord compression can affect daily function in ways that are easy to underestimate. A person with cervical cord compression may have trouble using their hands. They may drop objects, struggle with buttons, lose grip strength, type more slowly, or have difficulty with tools. That can be devastating for tradespeople, health-care workers, emergency workers, mechanics, drivers, office workers and anyone whose job depends on hand function.

A person with thoracic or cervical cord compression may have poor balance, leg weakness, spasticity, impaired endurance or walking problems. They might walk in a clinic but still be unsafe on stairs, ice, uneven ground, parking lots or crowded public spaces.

Bowel and bladder symptoms can also change a person’s life. These symptoms can affect sleep, travel, work schedules, dignity, intimacy and independence.

The legal claim needs to capture those day-to-day effects. The value of the claim is not based only on the MRI wording. It depends on how the cord compression changed the person’s function, independence, work capacity and future needs.

Cord Compression, ASIA Grades and Incomplete Spinal Cord Injury

The ASIA Impairment Scale is often used to classify the severity of a spinal cord injury. It helps describe whether the injury is complete or incomplete and whether the person is classified as AIS A, B, C, D or E.

Cord compression is not itself an ASIA grade. Compression describes pressure on the spinal cord. The ASIA grade describes neurological function after spinal cord injury.

MRI might show compression, edema, contusion, cord signal change or myelomalacia. The ASIA assessment can help show how much motor or sensory function remains. Together, they can help explain the severity of the injury, prognosis, rehabilitation needs and catastrophic impairment issues.

If the records mention AIS A, AIS B, AIS C, AIS D, sacral sparing, paraplegia, tetraplegia, incomplete spinal cord injury or complete spinal cord injury, those details should be reviewed closely in any serious spinal cord compression claim.

Cord Compression and Catastrophic Impairment in Ontario

In Ontario motor vehicle accident cases, spinal cord injuries can become important in the accident benefits system because of catastrophic impairment.

Catastrophic impairment opens up a higher level of accident benefits. For spinal cord injuries, Ontario’s accident benefits rules include a route for paraplegia or tetraplegia connected to permanent ASIA Impairment Scale grading.

Cord compression does not automatically mean catastrophic impairment. A person can have cord compression without meeting the legal test for catastrophic impairment. But cord compression can be part of the evidence where the person has paralysis, severe neurological impairment, significant walking limitations, bowel or bladder impairment, or an ASIA classification relevant to the SABS spinal cord injury criteria.

How Compensation Is Assessed

Compensation for spinal cord compression depends on the evidence and the effect of the injury. Important factors to be considered are pain and suffering, loss of income, loss of competitive advantage, future care, attendant care, housekeeping limitations, home modifications, mobility equipment, medication, treatment costs, transportation, out-of-pocket expenses and the effect on family life.

By way of example, a person who had no significant symptoms before the accident but developed hand weakness, walking problems and MRI-confirmed cervical cord compression after the accident will have a different claim than someone with stable degenerative narrowing and no functional change.

What Evidence Helps Strengthen a Cord Compression Claim?

Important evidence can include hospital records, ambulance records, emergency department notes, family doctor notes, MRI reports, CT reports, neurosurgical records, orthopedic spine records, operative reports, rehabilitation records, physiatry assessments, occupational therapy reports, physiotherapy records, urology records, bowel and bladder documentation, medication records and workplace evidence.

Family evidence can also be important. Family members often notice changes that do not fully appear in medical charts: slower walking, falls, dropped objects, fatigue, bathroom routines, sleep disruption, loss of independence, fear of stairs, trouble driving, or difficulty with ordinary household tasks.

In serious cases, expert evidence can be needed to explain causation, prognosis, future care, work capacity and long-term cost.

Speak With an Ontario Spinal Cord Injury Lawyer

Spinal cord compression after an accident can be medically and legally complex. The key issue is not only whether an MRI shows compression. The claim has to address causation, neurological injury, functional loss, prognosis, accident benefits, future care and the long-term impact on the person’s life.

Foster Injury Law is able to represent those with serious spinal cord injuries across Ontario. If you or someone close to you was diagnosed with spinal cord compression after an accident, contact Foster Injury Law for a free consultation with an Ontario spinal cord injury lawyer.

Author

This article was produced by Foster Injury Law, an Ontario personal injury law firm representing people with serious spinal cord injuries, catastrophic injuries, brain injuries and other life-changing trauma.