Impact of changing foot progression angle on foot pressure measurement in children with neuromuscular diseases.

To analyze the effect of lower-limb rotation on foot pressure distribution, 16 patients (23 feet) with neuromuscular diseases who received derotation osteotomy of lower limbs without concomitant foot-ankle procedures were included in this retrospective study. The cross-correlation analysis showed that the interval change of the foot progression angle was correlated with the interval change of the medial-lateral foot pressure impulse distribution. The externally rotated foot progression angle tends to introduce higher loading on the medial foot, and the internally rotated foot progression angle shifts the loading to lateral side of the foot. This study provides evidence that the rotational profile of the lower limb has a substantial impact on foot pressure distribution.