To address this, researchers in China set out to investigate whether the reliability of telesurgery is comparable (non-inferior) to standard local surgery in patients undergoing urological robotic operations. Patients were randomly assigned to either telesurgery or standard local surgery. The median age of patients was 61 years in the telesurgery group and 65 years in the local surgery group. Nine patients withdrew from the trial, leaving 32 (17 prostatectomies and 15 partial nephrectomies) who underwent telesurgery and 31 (16 prostatectomies and 15 partial nephrectomies) who underwent local surgery. The results indicate that telesurgery was not inferior to local surgery (success probability difference 0.02) and the telesurgery system was stable with a distance from 1000 km up to 2800 km.