Both studies used MRI to compare patterns of cartilage lesions between people with normal, varus (bow-legged) or valgus (knock-kneed) alignment. Leena Sharma and colleagues looked for incident ...

Both men and women tended to land stiffly, which can lead to ACL injuries, but women were 3.6 times more likely to land in a "knock-kneed" position, which the researchers say may be the critical ...