A driver turned left in front of you at Colorado Boulevard and Lake Avenue in Pasadena, and you hit the side of his car. Your right knee struck the lower dash. It swelled overnight, and two weeks later it still locked when you walked down stairs. An MRI showed a torn medial meniscus. The orthopedist recommended arthroscopic surgery. The insurer's response: "Meniscus tears are common in people your age."
Knee cases follow a familiar pattern. The injury is real and documented, and the fight is over whether the crash caused it.
Quick answer: A torn meniscus, ACL, PCL, or other knee injury caused or worsened by a car crash is compensable in California. A common mechanism is a "dashboard knee," where the knee strikes the dash, and twisting injuries from bracing. Insurers often argue that meniscus tears are degenerative. California law allows recovery for aggravation of a preexisting condition (CACI 3927) and for the full harm suffered by an unusually susceptible plaintiff (CACI 3928). The strongest claims have prompt treatment, consistent complaints, an MRI close in time to the crash, and a treating surgeon's opinion connecting the tear to the collision.
Key Takeaways
- Dashboard impacts and bracing in a crash can tear the meniscus or knee ligaments.
- Insurers often argue meniscus tears are degenerative; California law allows recovery for aggravation of a prior condition.
- Early MRI and consistent symptom reports are the most important evidence.
- Arthroscopic surgery, reconstruction, and future arthritis risk raise both costs and claim value.
- A treating orthopedic surgeon's causation opinion often decides the dispute.
How Do Car Accidents Injure the Knee?
- Dashboard impact. In a frontal crash, the knee can hit the dash, driving the shin backward. This is a classic mechanism for PCL injuries and patella fractures.
- Twisting and bracing. A foot planted on the brake with the knee bent can twist as the body moves, tearing the meniscus or ACL.
- Side impacts. Door intrusion can strike the knee from the side, injuring the MCL or LCL.
- Pedestrians and motorcyclists. Bumper height often meets the knee directly.
What Is the Difference Between a Meniscus Tear and an ACL Tear?
The menisci are two C-shaped pads of cartilage that cushion the knee. Tears cause pain, swelling, catching, or locking. Some heal with therapy, and others need arthroscopic repair or partial removal.
The ACL and PCL are ligaments that stabilize the knee. A complete ACL tear often causes the knee to give way and is commonly treated with reconstruction surgery, followed by months of rehabilitation.
Why Do Insurers Call Knee Injuries Degenerative?
Imaging studies of adults often show some meniscus wear. Adjusters use that to argue a tear existed before the crash. Our post on what insurance companies look for in your medical records covers how they search for prior complaints.
The answer is usually in the history and the imaging. Signs that support a traumatic injury include:
- No prior knee complaints or treatment.
- Pain and swelling that started right after the crash.
- MRI findings of acute injury, such as bone bruising or joint effusion, which doctors may describe as consistent with recent trauma.
- A tear pattern the surgeon considers traumatic rather than degenerative.
Even if some degeneration existed, a crash that turned a painless knee into one that needs surgery has caused compensable harm.
How Is a Knee Injury Claim Valued?
Value depends on:
- Treatment. Therapy alone, injections, arthroscopy, or ligament reconstruction.
- Recovery time. ACL reconstruction rehabilitation often lasts many months.
- Work impact. Jobs that require standing, climbing, or kneeling are affected more.
- Permanent effects. Instability, loss of motion, or an increased risk of post-traumatic arthritis and future knee replacement, if supported by medical opinion.
- Non-economic harm. Pain, loss of activities like running or hiking, and limits on family life.
Past medical damages are generally limited to amounts actually paid or incurred under Howell v. Hamilton Meats and Provisions, Inc. (2011) 52 Cal.4th 541. Future care must be supported by medical testimony.
What Should I Do in the First Weeks After a Knee Injury?
- Get examined promptly and describe exactly how the knee was struck or twisted. The mechanism of injury in the first record matters later.
- Ask about imaging if swelling, locking, catching, or instability continues. X-rays do not show meniscus or ligament tears, so an MRI is usually needed.
- Follow activity restrictions, including crutches or a brace if prescribed.
- Keep a short journal of pain levels, missed work, and activities you cannot do, such as stairs, kneeling, or playing with your children.
- Save receipts for braces, ice machines, mileage, and prescriptions.
- Report the crash to DMV within 10 days if anyone was hurt or damage exceeded $1,000, as Vehicle Code section 16000 requires.
What Mistakes Hurt Knee Injury Claims?
- Delaying an MRI or orthopedic referral.
- Skipping physical therapy sessions.
- Downplaying pain at early visits.
- Posting photos of hikes, sports, or workouts.
- Settling before a surgeon has evaluated whether surgery is needed.
What Should Pasadena Residents Know About Local Claims?
The Pasadena Police Department generally handles crashes on city streets, while the CHP generally handles crashes on the I-210 and SR-134 freeways. A lawsuit in Los Angeles County is filed in the Superior Court of California, County of Los Angeles, which operates courthouses throughout the county. Our Los Angeles accident guide has local information.
Frequently Asked Questions
Can a minor car accident tear a meniscus?
Yes. Even moderate impacts can twist or strike the knee. The question is whether the medical evidence connects the tear to the crash.
Do I need surgery for a valuable knee claim?
No, but surgery usually increases medical expenses, recovery time, and claim value. Claims that resolve with therapy can still be significant if the injury affected work or daily life.
What if I hurt the same knee years ago?
You can still recover for the aggravation. Be honest with your doctors about the prior injury so they can explain what changed.
How long should I wait to settle a knee injury claim?
Usually until your surgeon can describe your long-term prognosis, while keeping the two-year filing deadline under Code of Civil Procedure section 335.1 in mind.
Will the defense send me to its own doctor?
If a lawsuit is filed, the defense can usually request a medical examination. Our post on the defense medical exam in California explains what to expect.
Knee Injury After a Crash? Geller Legal Can Help.
Knee injuries can take months to heal and may affect you for years. A claim built on prompt imaging and your surgeon's opinion addresses the degeneration argument directly.
Geller Legal | Personal Injury Attorneys works with treating orthopedic surgeons to document causation and future care, and pushes back when insurers call a traumatic injury wear and tear. Learn more about our California car accident practice.
We serve injured clients throughout California, with offices in Los Angeles, Oakland, and Walnut Creek. If you hurt your knee in a crash, call us at 213-770-4870 for a free, confidential consultation with Attorney Michael Geller.