Twisted knee, severe pain

[RebelsHubby]

I had injured my rt. knee 30 years ago, dislocated, but only minor tear to inside ligament.  13 years later had to have calcified disc removed from under patella, it would cause my knee to lock up.  It did not cause any other pain.  
Today I was feeding the dogs and turned, but foot stuck on the icy/snowy ground.  I had instant and severe pain right under the patella, toward the bottom edge of the knee.  I cannot put any weight on it.
Any ideas on what I did?

[RebelsHubby]

Thanks so much for the help Dr. G, at difficult times like this it is nice to know that there are compassionate people like yourself, willing to help for the sake of helping.

[Godofredo MD]

Hi.

I am very sorry to hear that. However, if there is any way you can consult a physician for your condition, please do so as soon as possible.

Also, please do not put weight on the affected knee. if possible, immobilize it for the moment or use compression bandages.

Hope this helps.

[RebelsHubby]

Thanks for responding Doc.
It is very painful, still cannot bear weight.  There is a little swelling.  There is no tenderness to the touch of or around the kneecap.  It actually feels like it hurts inside the knee, if that makes sense.
I started using nsaids and cold packs, to no avail as of yet.  I do not have any health Insurance, so must do as much as I can for myself, unless absolutely nessessary.

[Godofredo MD]

Hi.

There are many conditions that would result from what you did but probably the most likely is you strained (rule-out tear) a ligament or a tendon which caused the pain.

Is there still pain now? How about swelling? You should apply ice and take anti-inflammatory/analgesic medications to relieve the pain and swelling if present. You should also have it checked by your orthopedist to properly evaluate your condition.

Hope this helps.