What is it?

Dislocation of knee, or patellar dislocation occurs when the knee cap pops sideways out of its knee joint groove. Normally, when we flex and extend the leg, the knee cap moves with the knee, thanks to tendons, ligaments and a bony structure that allows it. When an injury takes place, such as a sudden turn or twist to the knee, the knee cap pops out of its place, usually laterally. Rarely, patellar dislocation may happen gradually due to a condition called congenital patella dislocation. It is more common in athletes, dancers, teenagers, women, big and tall men and people with patellar instability.

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Signs & symptoms

Symptoms may include hearing a "pop", buckling of the knee. sudden and strong pain, swelling, bruising an locking of the knee.

Diagnosis

Diagnosis is based upon findings from medical history and physical examination. Further evaluation may include imaging tests.


Treatment

Treatment includes a manual relocation of the kneecap. If there is a significant damage to the bone or cartilage, a surgery may be needed.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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