Extraperitoneal SINgle-port rObotic-assisted Radical Prostatectomy (RARP) Versus Transperitoneal Multi-port RARP in the Treatment Of Prostate Cancer (SINO-TOP)

Inclusion Criteria:

1. Men aged 18 years ≤ age ≤ 75 years;
2. Prostate biopsy within 6 months with diagnosis of organ-localized prostate cancer with preoperative staging of T1c to T2b,N0M0;.
3. Gleason Score\<8.
4. PSA\<20ng/ml.
5. Pathologic diagnosis of prostate follicular adenocarcinoma or prostate ductal adenocarcinoma;
6. The patient has healthy sexual function before surgery and intention for sexual activities after surgery;
7. Physiological condition acceptable for laparoscopic surgery;
8. Willing to cooperate and complete the study follow-up and related examinations;
9. The subject or his agent voluntarily participates in this trial and signs the written informed consent;
10. The questionnaire can be completed in Chinese.
11. The patient has been informed of the trial;

Exclusion Criteria:

1. High-risk and non-organ localized prostate cancer (clinical stage ≥ T2c, GS ≥ 8, PSA \> 20ng/ml);
2. Special type of prostate cancer， such as neuroendocrine etc.;
3. History of previous abdominal surgery and radiotherapy which may affect abdominal incision and Port placement;
4. Recent surgery of rectum, perianal abscess or around fistula and perineal area;
5. Patients who have undergone previous electro-prostatectomy/enucleation of the prostate;
6. Non-recurrent patients with less than 12 months of follow-up;
7. ECOG\>1.
8. Combination of other systemic tumors;
9. had received any type of preoperative antitumor therapy;
10. Suffering from poor general condition with the presence of one of the following conditions: including severe mental disorders, cardiovascular disease, active infections, bone marrow transplantation within 3 months, or significant abnormalities in organ function;
11. Participation in other clinical studies or previous treatment with any gene therapy product within the last 3 months;
12. Other conditions that the researchers believe may affect the experimental results or are unethical;