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A member asked:
Unable to lift right leg past 30% when sitting. it shakes, weak, there is no pain & lumbar mri is normal. can't straighten leg at knee. what's wrong?
A doctor has provided 1 answer
B sure U have been: Evaluated by an orthopedic surgeon 2 B sure there is not something mechanical in the knee such as a displaced meniscus , or a loose body. There is usually a history of recent or distant injury 2 the knee 4 it 2 become "locked". I am assuming that U mean extend the knee.
Answered 9/14/2016
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