tibia vara vs genu varum

tibia vara and genu varum both are nouns.

Word	Noun	Adjective	Verb	Adverb
tibia vara	Yes	No	No	No
genu varum	Yes	No	No	No

As nouns, tibia vara and genu varum are synonyms defined as:

tibia vara and genu varum: a leg bowed outward at the knee (or below the knee)

Other synonyms of tibia vara include bandy leg, bandyleg, bow leg, bowleg.

tibia vara (noun)	genu varum (noun)
a leg bowed outward at the knee (or below the knee)	a leg bowed outward at the knee (or below the knee)