[23M] With knee pain, stiffness, and instability post-hyperextension

What might be happening

Based on the information you have provided, here are some possible explanations for your knee pain and associated symptoms:

• Ligament Injury (e.g., ACL or MCL Tear): Given your history of an ACL tear in the other knee and the symptoms of instability and difficulty fully straightening your knee, it's possible that you may have injured one of the ligaments in your knee. Ligament injuries can cause pain, stiffness, instability, and sometimes a popping sound.

  • Treatment: Initial treatment often includes rest, ice, compression, and elevation (RICE). A doctor may recommend physical therapy or, in severe cases, surgery. An MRI may be needed to confirm the diagnosis.

• Meniscus Tear: The meniscus is a piece of cartilage that provides cushioning between your thigh bone and shin bone. A tear in the meniscus can cause pain, stiffness, and a catching or locking sensation in the knee.

  • Treatment: Similar to ligament injuries, initial treatment includes RICE. Physical therapy may be recommended, and in some cases, surgery may be necessary. An MRI can help diagnose a meniscus tear.

• Patellar Tendonitis: This condition, also known as jumper's knee, involves inflammation of the tendon connecting the kneecap to the shinbone. It can cause pain and stiffness, especially with activities like running and jumping.

  • Treatment: Rest, ice, and anti-inflammatory medications can help. Physical therapy focusing on strengthening and stretching the muscles around the knee may also be beneficial.

• Bursitis: Inflammation of the bursae, the small fluid-filled sacs that cushion the knee joint, can cause pain and stiffness.

  • Treatment: Rest, ice, and anti-inflammatory medications are commonly used. In some cases, a doctor may recommend draining the excess fluid or injecting corticosteroids.

What you can do

While it's important to consult a healthcare professional for a formal diagnosis and treatment plan, here are some steps you can take in the meantime:

1. Rest: Avoid activities that exacerbate your knee pain, such as running, sprinting, and walking up stairs or down hills.
2. Ice: Apply ice to your knee for 15-20 minutes every 2-3 hours to reduce pain and swelling.
3. Compression: Use an elastic bandage or knee brace to provide support and reduce swelling.
4. Elevation: Elevate your leg when sitting or lying down to help reduce swelling.
5. Over-the-Counter Pain Relief: Consider taking over-the-counter pain relievers like ibuprofen or acetaminophen to manage pain and inflammation.
6. Physical Therapy: Gentle stretching and strengthening exercises may help improve your knee's stability and flexibility. A physical therapist can provide a tailored exercise program.
7. Journal Your Symptoms: Use MDandMe to journal your symptoms, track your progress, and get insights. This information can be valuable when you consult with your healthcare provider.

What you should look out for

Seek medical attention more urgently if you experience any of the following:

• Severe Pain: If your pain becomes severe and unmanageable.
• Swelling: If you notice significant swelling that doesn't improve with rest and ice.
• Instability: If your knee feels unstable or gives out when you put weight on it.
• Inability to Move: If you cannot fully straighten or bend your knee.
• Signs of Infection: If you develop redness, warmth, or fever, which could indicate an infection.

Remember, while these suggestions can help manage your symptoms, it's crucial to consult a healthcare professional for a formal diagnosis and appropriate treatment.