I hurt my knee playing football, its been 10 days now I can't bend my knee past 90 degree's.there is no pain and I can walk normal. Muscle around my knee becomes tight while bending. Whats causing it?

Knee Pain

1Doctor Answered

Dr. Rahul (Pt)Physiotherapist8yrs exp

91% (645 ratings)

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Hi Lybrate user ,the inability to bend or straighten the knee may be the result of a true locked knee (in which torn knee cartilage becomes wedged in the joint) or a pseudo-locked knee, pseudo locked knee occurs when severe knee pain triggers the knee muscles to spasm and contract. It is an automatic defense mechanism that the body uses to discourage movement of the knee. Restricting the knee in this way helps prevent further damage. Thanks

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