You were hurt when an 18-wheeler hit your vehicle. Now you have neck pain, back pain, or symptoms that interfere with your job and daily life. But the trucking company’s insurance adjuster says your MRI shows degeneration—or points to an old injury—and argues that the wreck did not cause your problems.
Having a prior injury, arthritis, or degenerative disc disease does not automatically prevent you from recovering compensation after a Dallas truck wreck. If someone else’s negligence caused a new injury or aggravated an existing condition, you may have a claim for the resulting harm.
The important questions are what your condition was before the collision, what changed afterward, and whether the medical evidence connects that change to the wreck.
At The Wooley Law Firm, our Dallas truck accident lawyer helps injured people address disputed injury claims involving 18-wheelers and other commercial vehicles.
Can I Recover Compensation if I Had a Preexisting Condition?
Yes, depending on the evidence. Texas law recognizes that an accident can aggravate a condition that already existed.
In Flynn v. Racicot, a Texas appellate court explained that a preexisting condition does not excuse a defendant from responsibility for aggravation caused by the accident.
That does not mean a trucking defendant must pay for every medical problem you have ever experienced. Your claim must establish the additional harm caused by the collision and the losses resulting from it.
For example, you might have had occasional low-back pain before the wreck but worked full time without restrictions. Afterward, you may experience more frequent pain, new leg symptoms, or limitations that prevent you from doing the same job. Those differences deserve medical evaluation and documentation.
You do not have to claim you were in perfect health before the truck hit you. You need an accurate explanation of how the wreck affected your health.
Does Degenerative Disc Disease Mean the Truck Wreck Did Not Injure Me?
No. A degenerative finding does not, by itself, answer whether the collision caused a new injury or aggravated an existing condition.
An MRI report may use terms such as:
Degenerative disc disease.
Spondylosis.
Disc desiccation.
Facet arthropathy.
Seeing unfamiliar language in a report can be unsettling, particularly when an adjuster treats it as proof that your symptoms are unrelated to the wreck.
A systematic review published in the American Journal of Neuroradiology found that degenerative spine findings are common in people without symptoms and become more prevalent with age. The authors emphasized interpreting imaging in the context of the patient’s clinical condition.
That research does not establish what caused any individual person’s symptoms. It does explain why an MRI finding should be considered alongside your history, examination, and other evidence.
Your doctor may need to evaluate whether the wreck caused a new condition, worsened symptoms associated with an existing condition, or had no medically supported connection to a particular finding.
A degenerative MRI finding is part of the evidence. It is not a complete medical causation analysis.
What if I Was Already Having Pain Before the 18-Wheeler Accident?
You may still have a claim if the collision made your condition worse.
The comparison should accurately describe both periods. Relevant changes can include:
Pain that became more severe, frequent, or persistent.
New symptoms in an arm or leg.
Additional medication or treatment needs.
New work restrictions or missed work.
Reduced ability to walk, lift, drive, sleep, or perform household tasks.
These changes require medical assessment; they do not automatically prove an accident-related injury. But existing pain does not make the comparison meaningless.
For illustration, someone receiving occasional treatment before a collision might need substantially more care afterward. The investigation should determine why the treatment increased and whether the collision probably contributed.
Tell your doctor what was already bothering you, what improved before the crash, and what changed afterward. Saying you never had back pain when your records document earlier treatment can create an avoidable credibility problem.
How Do You Prove the Truck Wreck Caused or Aggravated Your Injuries?
Medical causation means connecting the collision to the injury or worsening condition for which you seek compensation.
The Texas Supreme Court explained in Guevara v. Ferrer that expert evidence is generally required for medical causation questions beyond a jury’s ordinary knowledge and experience. Some straightforward injuries can be established without it, but complex medical histories often require medical expertise.
An aggravation claim should therefore address more than the fact that you received treatment after the wreck. Useful evidence may include the following.
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Medical Records Before and After the Collision
Earlier records can establish your baseline: symptoms, diagnoses, medication, work restrictions, and treatment recommendations before the truck accident.
Later records can document new complaints, examination findings, functional changes, and treatment. A fair comparison includes unfavorable records as well as favorable ones.
For someone with a previous injury, records showing improvement, completed treatment, or a return to regular activities can help explain their condition before the new collision.
Prior and Current Imaging
If earlier MRI, CT, or X-ray studies exist, obtain the actual images when possible, along with the reports. A qualified physician can determine what comparisons are medically meaningful and what the imaging can—or cannot—show about timing and causation.
The claim should not assume that every finding first discovered after the wreck was newly caused by it.
A Clear Symptom Timeline
Document when symptoms began or worsened, when you first reported them, and how they developed.
Explain treatment delays accurately, including appointment availability, transportation problems, or financial barriers. Do not invent a reason for a gap or change the timeline to make the claim appear stronger.
Timing can support the analysis, but timing alone may not resolve a complex causation dispute.
A Reasoned Medical Opinion
A useful medical explanation addresses your prior condition, the collision history, examination findings, imaging, and other possible causes.
Where supported, it should explain why the wreck probably caused or aggravated the condition and how that relates to the treatment you need.
The goal is an independent medical assessment grounded in the evidence.
Evidence of What Changed in Daily Life
Work records, medical restrictions, and observations from people who know you can help document changes in your abilities.
For example, a supervisor may have observed that you performed regular lifting duties before the collision but required assistance afterward. A family member may have noticed changes in your ability to handle household responsibilities.
Photographs can also preserve visible injuries. Our article on photographing bruises, cuts, and swelling after a Dallas truck wreck explains practical steps.
This evidence supports the overall picture but may not replace necessary medical opinions.
What if I Had a Previous Neck or Back Surgery?
A prior fusion, discectomy, or other operation does not automatically defeat your claim.
Important records may include:
The operative report.
Follow-up appointments.
Rehabilitation records.
Earlier imaging.
Work restrictions.
A release to return to work.
These records can help establish whether you were recovering, functioning with manageable symptoms, or already experiencing substantial limitations before the collision.
Your physicians must evaluate whether the wreck caused additional injury or worsening and whether new treatment is related to that change.
If another operation is recommended, the claim should address why it is needed now, what treatment had been planned before the wreck, and whether the collision changed the timing or extent of care.
Our article about surgery after an 18-wheeler wreck in Dallas discusses the related settlement issues.
What if the Insurer Says I Would Have Needed Surgery Anyway?
That argument requires careful investigation.
An underlying condition might eventually have required treatment. But the evidence may support that a wreck accelerated the need for care or increased its extent. Conversely, records may show that the same procedure was already scheduled for the same symptoms before the crash.
A physician’s explanation should address those facts directly.
Questions worth examining include:
Had surgery actually been recommended before the collision?
Were you managing your condition without an operation?
Did your symptoms or physical limitations change after the wreck?
Does your surgeon connect the current recommendation to those changes?
Did the collision alter the expected timing or scope of treatment?
A surgical recommendation does not automatically prove causation, and an adjuster’s prediction about your future health does not settle the question.
Make medical decisions with your treating physicians based on your health and treatment needs.
Should I Give the Trucking Company’s Insurer My Entire Medical History?
Relevant prior records may be necessary to evaluate your claim. Before signing a broad authorization, understand which providers, dates, and categories of records it covers.
An attorney can review the request and help address its scope. If a lawsuit is filed, discovery obligations and court orders may require production of relevant information. Claims under your own insurance policy can also involve contractual cooperation duties.
Be truthful about prior injuries, accidents, surgeries, and treatment. Give your lawyer the complete history so potential issues can be addressed early.
What Compensation May Be Available for an Aggravated Injury?
Depending on the evidence, recoverable losses caused by the new injury or aggravation may include:
Reasonable and necessary medical expenses.
Supported future treatment costs.
Lost income.
Reduced earning capacity.
Physical pain.
Mental anguish.
Physical impairment.
The claim must distinguish crash-related harm from unrelated problems. There is no automatic settlement amount or fixed percentage reduction simply because you had a prior injury.
Medical bills document charges, but they do not automatically establish that the truck wreck caused the conditions treated. A disputed claim may require additional medical evidence connecting the care to the collision. law.justia.com
Our guide to damages after a Dallas truck accident explains potential categories of recovery in more detail.
What Should I Do if the Insurance Company Blames a Preexisting Injury?
Continue medically appropriate care. Report symptoms and changes accurately.
Disclose your prior history. Tell your doctor and attorney about earlier problems involving the same body parts.
Identify earlier records. List previous providers, imaging facilities, surgeries, and accidents.
Document your limitations. Keep a factual record of symptoms, missed work, and activities you have difficulty performing.
Save the insurer’s explanation. Preserve correspondence, offers, authorizations, and proposed releases.
Get legal advice before settling. Understand how a release would affect your ability to pursue disputed injuries and future care.
Preserve collision evidence as well, including photographs, video, witness information, and truck identification. Proving who caused the wreck and proving what injuries it caused are separate parts of the case.
Frequently Asked Questions
Can I Have a Claim if I Never Knew I Had Degeneration?
Yes, potentially. Discovering degeneration after a wreck does not establish when it developed or whether it caused earlier symptoms. Your doctor must assess whether the collision caused new injury or worsened your condition.
Does Admitting Prior Back Pain Ruin My Case?
No. An accurate history helps doctors and attorneys evaluate what changed. Concealing earlier symptoms can make that evaluation harder and damage credibility.
What if I Do Not Have an MRI From Before the Wreck?
The absence of earlier imaging does not automatically prevent a claim. Other medical records, examinations, symptom history, and qualified medical opinions may help establish causation. The limits of that evidence must also be considered.
Does the Trucking Company’s Admission of Fault Mean It Must Pay All My Medical Bills?
No. Responsibility for causing the collision and responsibility for particular injuries are separate questions. The defense may accept collision fault while disputing medical causation or damages.
Talk to a Dallas Truck Wreck Lawyer About a Preexisting-Injury Dispute
If the trucking company’s insurer says your injuries were preexisting, your medical history deserves a careful review. The investigation should examine how you were functioning before the wreck, what changed afterward, and what your physicians can explain about those changes.
The Wooley Law Firm represents people injured in Dallas and North Texas truck accidents. We can review the insurance dispute and discuss the evidence needed to evaluate your claim.
Call (214) 699-6524 or contact The Wooley Law Firm for a free consultation. You don’t pay unless we win.
This article is for general informational purposes only and is not legal or medical advice. Reading it does not create an attorney-client relationship. Every case is different, and past results do not guarantee a similar outcome.
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Andrew J. Wooley
Personal Injury Attorney
Andrew J. Wooley is a dedicated personal injury attorney based in Dallas, Texas. He focuses on helping accident victims recover fair compensation for their injuries. With a commitment to personalized service, Andrew works directly with each client to understand their unique situation and fight for their rights.
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