Genu valgum

Abnormal inward turning of the knees when straightening the legs

Genu valgum, commonly called "knock-knee", is a condition in which the knees angle in and touch each other when the legs are straightened. Individuals with severe valgus deformities are typically unable to touch their feet together while simultaneously straightening the legs. The term originates from Latin genu 'knee' and valgus 'bent outwards', but is also used to describe the distal portion of the knee joint which bends outwards and thus the proximal portion seems to be bent inwards.

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