Hi, thanks for writing to HCM.
Based on the description, I suspect that you could have suffered a Meniscal injury
that is troubling you.
scan of the knee joint is needed to establish the diagnosis as these injuries are not visualized in xrays.
Management will depend on the condition diagnosed. In the meantime, follow the below recommendations to prevent further damage to your knee joint -
* activity modification by avoiding impact sports which causes more strain on the knee joint
* using an elastic compression bandage to reduce the swelling
* Ice packing to alleviate the pain
to strengthen the quadriceps muscle
Hope this information is helpful. Good day