Sex Differences in Q-Angle

Women naturally have wider hips compared to men. This significantly impacts the angle from the hip (anterior superior iliac spine) to the knee (midpoint of the patella) and overall alignment of the knee joint. Knee collapse (valgus) may be more prevalent in individuals with a greater Q-angle and can result in “runner’s knee” from maltracking of the patella.

The normal range for women is ~17 degrees and men ~14 degrees, relative to the tibial tubercle and midpoint of the patella.

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