Knee Pain After Fall: Symptoms and Seeking Help

Knee pain when fully extending the leg after a fall?

After slipping while running on a rainy day, I hit my right knee on the ground.
Now, there is pain above the right side of the knee when fully extended (pressing on that area also causes pain).
There is no pain when the knee is bent or slightly bent, but when I forcefully extend and then bend it, there is a definite popping sound, and it feels like the patella is vibrating.
I would appreciate any advice from a doctor.
Thank you very much!

Xiao Yi, 20~29 year old female. Ask Date: 2016/04/19

Dr. Shi Guozheng reply Orthopedics

If the pain is severe and you are unable to walk, it is possible that a fracture has occurred.
If the pain is mild, it may just be a bruise.
If you are concerned, getting an X-ray can help determine if there is any issue with the bone.

Reply Date: 2016/04/19

More Info

Knee pain following a fall can be a concerning symptom, especially when it is accompanied by specific sensations like clicking or popping sounds. Based on your description, it seems that you are experiencing pain localized to the area just above the kneecap (patella) when the knee is fully extended. The absence of pain during slight bending and the presence of a "catching" sensation when extending the knee could indicate a few potential issues.

Possible Causes of Your Symptoms
1. Patellar Tendonitis: This condition, often referred to as "jumper's knee," occurs when the tendon connecting the kneecap to the shinbone becomes inflamed. It is common in athletes and can result from sudden impacts or overuse.

2. Quadriceps Tendon Injury: Similar to patellar tendonitis, an injury to the quadriceps tendon (located above the kneecap) can cause pain during knee extension and may produce a clicking sound.

3. Meniscus Tear: The meniscus is a cartilage structure in the knee that can be torn during a fall or sudden twisting motion. Symptoms often include pain, swelling, and a sensation of the knee locking or catching.

4. Patellar Dislocation or Subluxation: If the kneecap has been dislocated or partially dislocated, it can lead to pain and instability, especially during movements that require full extension.

5. Bursitis: Inflammation of the bursae (small fluid-filled sacs that cushion the knee joint) can cause localized pain and tenderness, particularly when pressure is applied.

Recommended Steps for Diagnosis and Treatment
1. Seek Medical Evaluation: It is crucial to consult with a healthcare professional, preferably an orthopedic specialist, who can perform a thorough physical examination and may recommend imaging studies such as X-rays or an MRI to assess for any structural damage.

2. Rest and Ice: Until you can see a doctor, it is advisable to rest the knee and apply ice to reduce swelling and pain. Avoid activities that exacerbate the pain, especially running or jumping.

3. Compression and Elevation: Using a knee brace or wrap can provide support and reduce swelling. Elevating the knee can also help manage inflammation.

4. Physical Therapy: Once a diagnosis is made, physical therapy may be recommended to strengthen the muscles around the knee, improve flexibility, and restore function. Specific exercises can help alleviate pain and prevent future injuries.

5. Pain Management: Over-the-counter pain relievers such as ibuprofen or acetaminophen can help manage discomfort. However, consult with a healthcare provider before starting any medication.

6. Follow-Up: If symptoms persist or worsen, follow up with your healthcare provider for further evaluation and potential treatment options, which may include corticosteroid injections or, in some cases, surgical intervention.

Conclusion
Knee pain after a fall can stem from various causes, and understanding the underlying issue is essential for effective treatment. Given your symptoms, it is crucial to seek professional medical advice to ensure a proper diagnosis and treatment plan. Early intervention can significantly improve outcomes and help you return to your normal activities without pain. Remember to listen to your body and avoid pushing through pain, as this can lead to further injury.

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