Orthopedics Questions? Ask an Orthopedist for Answers ASAP
Thanks for your question.
I need some more information.
Did you have any problem or pain with your knee prior to this episode?
Any swelling around the knee?
Do you feel any particular part of the knee is tender to touch?
What is your age?
Thanks for the reply.
I feel that you have got it right. It was most likely patella maltracking during its movement inside the femoral groove. As knee moves from extended position to flexed position patella has to engage inside the groove at lower end of femur. If this engagement is not smooth, the patella can hit the wall of groove and cause sudden pain or feeling of instability. The pain or instability can be momentary as patella proceeds to move smoothly in the groove as our knee extends.
No treatment is required at present. If this happens again and again you will need to have your knee and patellar tracking assessed.
Feel free to ask any follow-up question.
Yes it does make sense. This popping sensation could have caused slight fluid buildup in the knee. That would cause the feeling of over stretching when you try to extend it by keeping it straight without supporting the back of knee.
Slight popping sensation might indicate that is still malracking slightly.