Adnexal torsion is a gynecologic emergency condition. In case that the ovary become necrotic, the oophorectomy is neccessary.
Partial oophorectomy or ovariotomy is a term used to describe resection of parts of the ovaries. This kind of surgery is fertility-preserving, although ovarian failure may be relatively frequent.
Total oophorectomy means the removal of whole ovary. If both ovaries are removed, this condition leads to infertility, because there is no ovarian tissue, which can produce eggs. These woman can be pregnant, but only with donated eggs.
In cases of Fallopian tube removal called sapingectomy, the ovary remain in woman body. In these cases, there are assisted reproduction techniques such as in vitro fertilization (IVF), which can be used to help woman become pregnant.