短语词组短语rachitic genu valgum 佝偻病性膝外翻acquired genu valgum 获得性膝外翻developmental genu valgum 发育性膝外翻cuneiform osteotomy of genu valgum 膝外翻楔形截骨术polydactyly associated with genu valgum 多指及膝外翻 返回 genu valgum