Conditions guide
Knee Pain After Hitting the Dashboard in a Car Accident
A dashboard impact can leave you unsure what is injured. Learn when to seek help and what a knee examination, imaging or referral can clarify.
Written by The Collision Care Clinic editorial team
Published · Updated
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Your knee hit the dashboard, and now it hurts. You do not need to identify the injury before seeking care. Tell the clinician where the impact landed and what has changed since the crash. The examination helps determine what was injured and which next step fits.
The impact matters, but it does not name the injury
A blow to a bent knee can push the shinbone backward. The posterior cruciate ligament, or PCL, helps restrain that movement. The MedlinePlus guide to PCL injuries identifies dashboard impact as one cause of injury to this ligament.
Hitting the dashboard does not prove you have torn your PCL. The crash history is one part of the assessment. Other tissues may be involved too.
The published review of the acutely swollen knee describes ligament and cartilage injuries, fractures and dislocations. Pain, swelling, catching or a feeling that the knee gives way can occur with knee injuries. Symptoms alone do not identify the damaged structure.
Our joint-injuries overview covers other painful joints after a collision. This guide focuses on what to discuss when the knee took the impact.
Some changes need emergency care now
Call 911 if your knee looks out of place or misshapen, the foot below the injury is cold or pale, or you have severe bleeding. Do not try to straighten or put the joint back into place. MedlinePlus dislocation guidance explains these warning signs and precautions. Do not wait for a clinic appointment.
For other warning signs after a crash, use our emergency-care guide. This is not a complete checklist, and an ordinary-looking knee does not rule out an injury.
NHS knee-pain guidance advises seeking treatment as soon as possible for severe pain, swelling, limping, inability to move the knee, or a pop with giving way. Contact a clinician promptly and describe those changes. If you think this is an emergency, seek emergency care.
An examination checks more than the sore spot
The clinician reviews your symptoms and medical history, examines the knee and may compare it with the other knee. A published PCL assessment review describes checking the knee's structures and backward movement of the shinbone. Leave stability testing to the clinician.
Useful details to bring include:
- Where your knee struck the dashboard and whether it was bent.
- When swelling began and whether the knee catches or gives way.
- Which everyday tasks are difficult, such as walking or using stairs.
- Earlier knee injuries and any records from care after the crash.
You can describe these in your own words. The first-visit guide covers appointment preparation.
Imaging should answer a specific question
X-rays can show bone injury but do not show the PCL itself. MRI provides more detail about soft tissues. Your clinician chooses tests based on the assessment. A normal X-ray alone does not establish that the ligament is uninjured. These distinctions come from the published PCL assessment review.
Before a scan, ask what it is meant to clarify and how the result could change your care. Our imaging guide explains the tests in more detail.
Referral depends on the findings and your progress
An isolated PCL injury may be treated without surgery. Combined injuries, or continuing pain or instability despite nonsurgical care, may lead to a surgical discussion. The MedlinePlus PCL guide describes these different paths. A dashboard impact alone is not a reason to assume you need an operation.
Ask whether you need orthopedic care, what the referral would address and how soon it should happen. Leave the assessment with answers to these questions:
- How much weight can I put on this leg?
- Do I need a brace or crutches?
- Which activities should I change for now?
- When should we reassess, and which changes need help sooner?
The plan should reflect your examination. This article cannot choose exercises, set a recovery date or clear you to return to driving or sport.
Source links checked October 27, 2026. This is a source-check date, not a clinical-review date.