The Efficacy and Safety of Nerve-sparing Radical Hysterectomy in Cervical Cancer

Inclusion Criteria: * Histologically diagnosed cervical cancer * FIGO stage IA2-IIA * Diameter of tumor is less than 4cm on exam * One of hitological type written below squamous cell carcinoma, adenocarcinoma, adenosquamous cell carcinoma * Age between 18-70 * Performance status; GOG 0-1 * Normal hematological, hepatic, nephrologic function WBC ≥ 4000 cells/mm3 Platelet ≥ 100,000 /mm3 Hemoglobin ≥ 8.0 gm/dL Serum creatinin ≤ 1.3 mg/dL Serum bilirubin ≤ 1.5 mg/dL SBOT/SGPT and Alkaline phoaphatase \< normal X 3 * Patient with informed consent Exclusion creteria: * Small cell carcinoma * Unable to perform surgery because of severe underlying medical disease severe heart disease, congestive heart failure/severe pulmonary disease, pulmonary failure/ active bacterial infectio which needs non oral antibiotic therapy/ associated with other severe medical diseases * Prior chemotherapy or radiotherapy * Severe bladder funtion abnormality * Double primary malignant tumor * Psychiatric problems * Pregnant or breast feeding status * Legally unable to participate clinical trial * When there is a Doctor's decision that patient is unable to participate clinical trial