A member asked:

Can your tibia lock? what causes my knee to shift and lock and pop painfully?

A doctor has provided 1 answer
Dr. Richard Zimon answered

Specializes in Internal Medicine

Most commonly: "Locking" is due to a significant "internal derangement" (Torn cartilage) and an MRI is usually the next step. "Popping" may be due to a piece of loose cartilage "hanging" from a tear and "catching"BETWEEN the tibia/femur where they "meet" IN SHORT YOu NEED TO SEE AN ORTHOPEDIST. Hope this helps! Dr Z

Answered 7/16/2016

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