Jane, a 35-year-old woman, presented with complaints of heavy menstrual bleeding, pelvic pain, and dysmenorrhea. Her medical history revealed that she had been experiencing these symptoms for several years, which had progressively worsened over time. She has completed her childbearing. Upon physical examination, a tender, enlarged uterus was palpated. Pelvic ultrasound revealed a diffusely enlarged uterus with a thickened myometrium and heterogeneous echotexture, suggestive of adenomyosis. Which of the following is the most effective definitive treatment for adenomyosis in a woman who has completed childbearing?