The diagnosis of renal cell carcinoma is increasing in the early stage of cancer . If there is no benefit of an extended lymphadenectomy , the lumbar – extraperitoneal access in addition to the transperitoneal and laparoscopic access has been established. The implementation of a two-arm prospective study was to determine the tumor-specific survival. 178 patients were evaluated by questionnaire . The follow-up was 60 months on average. It was determined the temporal occurrence of metastases , local recurrence or the date of death due to tumor- related death. Both treatment arms showed no statistical differences in the age and sex distribution and the distribution of tumor sizes . The survival curve analysis using Kaplan- Meier showed no significant survival advantage. The open surgical access route in radical nephrectomy - extraperitoneal versus transperitoneal - does not affect the oncologic outcome.