crouching. Yes, crouching. The simple process of bending down to pick something up can lead to a tear in the meniscus. People with a meniscus tear often end up going under the knife because the body is lousy at self-repair of the knee, for reasons we’ll explore later in the chapter. The elderly are not the only victims of crouching injuries. Squatting was the “most frequent cause of a major meniscal tear in patients less than 30 years in the non-sporting injuries group.”