変形へんけいせいひざ関節かんせつしょうであれば
henkei sei hizakansetsu shōdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 変形性膝関節症

1. If/when osteoarthritis of the knee exists; If/when one has osteoarthritis of the knee

Ba Conditional
Medicine