Knee Injuries: Dealing with a Persistent Bump After Trauma

Q: Knee Injuries: Dealing with a Persistent Bump After Trauma

Hello： In response to your question, based on your description, the swelling in your left knee is likely a hematoma in the bursa located between the kneecap and the skin, which occurred after you bumped into the bed frame. <br>Initially, it may feel like a hard lump, but over ten

Regarding a knee injury, a lump has developed on the inside after a few months..?

Hello, about a year ago, I bumped my left knee against the bed frame.
It was very painful at the time, but there was no visible injury, so I didn't think much of it and assumed it would heal in a few days.
However, I have since experienced occasional knee pain, and when I touch my kneecap, I feel a protrusion.
I'm unsure if this is due to a bone injury or a bruise.
I consulted a traditional Chinese medicine practitioner, who noted that the protrusion is soft and attempted to perform bloodletting, but was unable to extract anything.
I am wondering if this protrusion is a blood clot, hardened material from a bone injury, or possibly displaced muscle.
What should I do about this? Is surgery necessary? (I have had an X-ray, and the bones appear normal.)

Liú, 30~39 year old female. Ask Date: 2004/07/28

Dr. Li Wenlin reply Orthopedics

Hello: In response to your question, based on your description, the swelling in your left knee is likely a hematoma in the bursa located between the kneecap and the skin, which occurred after you bumped into the bed frame.
Initially, it may feel like a hard lump, but over ten days or some time, it could develop into a fluid-filled cyst.
The general treatment options are: 1.
If there are no symptoms, no treatment is necessary.
2.
Attempt aspiration and apply compression.
3.
Surgical excision.
You can consult an orthopedic specialist nearby for your condition.
Wishing you a speedy recovery!

Reply Date: 2004/07/28

More Info

It sounds like you have been dealing with a persistent bump on your knee after experiencing trauma about a year ago. Given the details you've provided, including the initial pain, the presence of a soft bump, and the fact that X-rays did not show any bone abnormalities, there are several possibilities to consider regarding the nature of this bump and the appropriate course of action.

Understanding the Bump
1. Hematoma or Soft Tissue Injury: The bump you are feeling could be a residual hematoma, which is a collection of blood outside of blood vessels that can occur after trauma. If the blood has clotted and the body has not fully reabsorbed it, it can feel soft and may not be easily drained, as you experienced with the acupuncture treatment.
2. Bursitis: Another possibility is that the bump could be related to bursitis, which is inflammation of the bursa (a small fluid-filled sac that reduces friction between tissues). This can occur after trauma and may cause localized swelling and tenderness.

3. Synovial Cyst: Sometimes, after an injury, a synovial cyst can form. This is a fluid-filled sac that can develop in the knee joint area, often as a result of joint irritation or injury.

4. Soft Tissue Mass: It is also possible that the bump is a benign soft tissue mass, such as a lipoma (a fatty tumor) or a fibroma (a fibrous tissue tumor). These are generally harmless but can be uncomfortable or unsightly.

Recommended Actions
1. Consult an Orthopedic Specialist: Since you have already had X-rays, it would be beneficial to consult an orthopedic specialist who can perform a thorough physical examination and may recommend further imaging, such as an MRI or ultrasound, to better understand the nature of the bump. These imaging techniques can provide more detailed information about the soft tissues and any potential fluid collections.

2. Avoid Self-Treatment: While it might be tempting to try various home remedies or alternative treatments, it is crucial to avoid any procedures that could exacerbate the condition without proper medical guidance.
3. Physical Therapy: If the bump is related to soft tissue injury or bursitis, physical therapy may be beneficial. A physical therapist can help you with exercises to strengthen the muscles around the knee, improve flexibility, and reduce pain.

4. Monitor Symptoms: Keep track of any changes in the bump, such as increased size, pain, or changes in mobility. If you notice any worsening symptoms, seek medical attention promptly.

5. Surgical Intervention: Surgery is typically considered a last resort, especially if conservative treatments have not provided relief. If the bump is determined to be a significant issue (like a large cyst or a mass that is causing pain or functional impairment), your orthopedic specialist will discuss the risks and benefits of surgical options with you.

Conclusion
In summary, the bump on your knee could be due to several factors related to your previous trauma. Consulting with an orthopedic specialist is the best course of action to determine the exact nature of the bump and to discuss appropriate treatment options. It is essential to approach this situation with care and to avoid self-diagnosis or treatment without professional guidance. Remember, persistent pain and swelling should not be ignored, and timely medical intervention can lead to better outcomes.

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