Which angle indicates a valgus deformity at the knee joint?

A valgus deformity at the knee joint, often referred to as "knock-knees," occurs when there is an increased angle between the femur and the tibia, resulting in the knees being positioned closer together than the feet when standing.

When assessing the angle of the knee in relation to valgus deformity, it is important to note that a normal knee angle is typically around 180 degrees. Angles less than this value indicate a valgus deformity, meaning that they deviate medially. Therefore, the angle that indicates a valgus deformity at the knee joint would be less than 180 degrees, and particularly less than 175 degrees, which denotes a significant degree of medial angulation.

An angle of more than 185 degrees would suggest a varus deformity, while an angle exactly at 180 degrees is generally considered neutral or normal. Angles between 175 and 180 degrees would also indicate a mild valgus deformity, but do not capture the more significant deviation described in the question.

Thus, while the current answer highlights angles indicative of a valgus deformity, the correct understanding reveals that any angle less than 180 degrees suggests the deformity. Specifically, 175 degrees serves as a threshold