A member asked:

It feels nearly impossible for me to straighten my right leg due to a non-traumatic, sudden knee injury. what should i do? what can this be?

A doctor has provided 1 answer
Dr. Thomas Deberardino answered

Specializes in Orthopedic Surgery

Meniscus tear: A fixed flexion deformity or "locked" knee needs urgent evaluation by an orthopaedic surgeon. The most common cause in your setting is a likely meniscal tear.

Answered 3/1/2017

2.3k views

Thank

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