Hello,
Pain in the knee joint with the feeling of popping and instability of knee joint can be due to some injury to
the ligaments of the knee joint. Ligaments of the knee provide stability to the joint and help in movement at
the knee joint. Sometimes a fragment of the knee joint gets detached and gets stuck during movement. A
physical examination by an orthopedician is required and certain investigations like X-ray and MRI should be
performed. Management includes rest, pain killers, knee support with brace or may require surgery. Hope this
helps. Take care and regards!