Experimental: transvaginal paracervical sentinel lymphadenectomy group

Surgical Procedure of transvaginal sentinel lymphadenectomy group:~All patients will be operated in accordance with Memorial Sloan Kettering Cancer Center procedure. V-NOTES will consist of transvaginal paracervical sentinel lymph node (SLN) mapping followed by V-NOTES hysterectomy and bilateral salpingo-oophorectomy (BSO).~SLN Mapping:~Under general anesthesia, subjects will be placed in supine lithotomy position. Methylene blue solution (BLUMET IV INJECTION INJECTABLE 50 mg/5 ml 1x5 ml) (1 mL submucosal to the cervix at the 3 and 9 o'clock positions and 1 mL at a depth of 1-2 cm, using a total volume of 2-4 mL.~Monitoring of lymphatic ducts includes identification of structures stained with methylene blue dye in the expected anatomical location, typically between the internal and external iliac veins or in the obturator region. Bilateral and symmetrical structures believed to be sentinel lymph nodes (SLNs) will be removed. When unilate

Active_comparator: Transperitoneal lymphadenectomy

In this arm, patients will undergo transperitoneal lymphadenectomy with V-NOTES. The procedure begins with methylene blue injection for sentinel lymph nodes. Methylene blue will be injected at the 3 and 9 o'clock positions on the cervix, first at a depth of 1 mm and then at 4 mm, with 1 cc administered at each point. This will result in a total of 4 cc (1 cc x 4). Then, the procedure will continue with anterior and posterior colpotomies, followed by placement of the V-NOTES apparatus. Hysterectomy is performed first, followed by peritoneal dissection and lymph node excision.