ArticleProstate cancer and prostatic diseases2026
The application of mixed reality navigation system in robot-assisted radical prostatectomy for high-risk prostate cancer: a propensity score‑matched cohort study.
Article in Prostate cancer and prostatic diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThis study aims to evaluate the efficacy and advantages of MR navigation system in robot-assisted radical prostatectomy (RARP) for high-risk prostate cancer (PCa).
methodsWe retrospectively studied 147 patients with high-risk PCa based on D'Amico risk criteria from July 2021 to November 2023. All patients chose MR-assisted RARP (MR-RARP) or standard RARP (S-RARP) after receiving comprehensive counseling on the benefits and risks of both procedures. After propensity score-matching, 57 patients were included in each group. Perioperative, functional and oncological outcomes were compared. Logistic and Cox regression models were used to identify predictors of positive surgical margin (PSM), biochemical recurrence (BCR), continence and potency recovery.
resultsThe MR-RARP group had higher nerve-sparing (NS) rates (78.9% vs 54.4%, P = 0.021) and lower PSM rates (10.5% vs 26.3%, P = 0.030). Continence recovery rates were higher in the MR-RARP group at catheter removal (40.4% vs 22.8%, P = 0.044), 1 month (61.4% vs 38.6%, P = 0.015) and 3 months (73.7% vs 47.4%, P = 0.004), with no significant differences at 6 months (82.5% vs 73.7%, P = 0.258) and 12 months (93.0% vs 87.7%, P = 0.341). Furthermore, the MR-RARP group demonstrated higher potency rates at 1 month (42.1% vs 21.1%, P = 0.016) and 3 months (57.9% vs 36.8%, P = 0.024), whereas outcomes were comparable at 6 months (66.7% vs 56.1%, P = 0.248) and 12 months (77.2% vs 66.7%, P = 0.211). With a median follow-up of 28 months, BCR-free survival showed no significant differences (P = 0.295). Multivariate analyses confirmed MR navigation as an independent predictor of PSM, continence, and potency recovery (all P < 0.05). Statistical power analysis indicated a power of 0.847.
conclusionsReal-time intraoperative MR navigation enhances surgical precision, facilitates NS techniques, and optimizes early continence and potency recovery without compromising oncological safety.
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