Yes, the metatarsals are part of the bones in the feet. In the English fan translations, it says right leg, while the original Japanese text says right foot/leg part (右足の部分) - apparently "足" can mean either the foot or the leg in Japanese. The foot is already inclusive by saying it's from his right leg part, but the description we have for the appearance we have is more descriptive of the foot.
Enable comment auto-refresher
TragicGleeAgent of DIO
FrizzleLambPassione Capo