Diagnosed with knee sprain & had an x-ray taken. happened when jumping. i think something may be torn. it is incredibly swollen & can't bear weight. what could be going on?

An MRI can help: If you are still having difficulty bearing weight, an MRI can help. We ned to have you seen by a Sports medicine doctor or Orthopedist or PM/R doctor right away for an updated exam and imaging. If it is negative Physical therapy is in order. In the meantime, you can go to Urgent care today for evaluation and continue rest, ice, elevation, anti-inflammatory for swelling and pain and to wrap it w/ACE.