{
  "abstract": "Background: Robot-assisted radical prostatectomy (RARP) is a key surgical approach for localized prostate cancer, yet early postoperative urinary incontinence remains a major functional concern. Membranous urethral length (MUL), measurable by preoperative MRI, may predict continence recovery, but its relationship with early outcomes warrants further clarification.\n\nObjective: To investigate the association between preoperative MRI-measured MUL and early complete urinary continence recovery after RARP, and to evaluate its dose-response relationship and discriminative ability.\n\nMethods: This retrospective cohort study included 152 patients who underwent RARP (October 2024–March 2026). MUL was measured on preoperative T2-weighted MRI by two independent observers. Urinary continence (0 pads/day) was assessed at 1 and 3 months after catheter removal. Multivariable Logistic regression (1 month) and Firth penalized Logistic regression (3 months) were used. Restricted cubic spline, ROC curves, and propensity score matching were performed.\n\nResults: Median MUL was 13.49 mm. Interobserver agreement was excellent (ICC = 0.946). Complete continence recovery rates at 1 and 3 months were 51.32% and 79.61%, respectively. Each 1-mm MUL increase was independently associated with higher odds of continence recovery at 1 month (OR = 1.758, 95% CI: 1.450–2.132, P<0.001) and 3 months (OR = 1.502, 95% CI: 1.247–1.809, P<0.001). Older age and higher BMI were associated with lower odds of 3-month recovery (both P<0.05). RCS analysis showed a linear dose-response relationship (P overall<0.001; P nonlinearity=0.540). MUL demonstrated moderate discriminative ability for 1-month (AUC = 0.822) and 3-month (AUC = 0.773) continence recovery.\n\nConclusion: Longer preoperative MUL was independently associated with higher likelihood of complete urinary continence recovery at 1 and 3 months after catheter removal, with an approximately linear dose-response relationship. MUL has good measurement reproducibility and moderate predictive value, supporting its potential as an imaging biomarker for preoperative continence risk stratification in RARP patients.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Urology, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Penglei Mao"
    },
    {
      "affs": [
        0
      ],
      "name": "Feng Ye"
    },
    {
      "affs": [
        0
      ],
      "name": "Xiuwen Zhu"
    },
    {
      "affs": [
        0
      ],
      "name": "Jianyong Zhu"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhangming Lei"
    },
    {
      "affs": [
        0
      ],
      "name": "Yukun Liu"
    },
    {
      "affs": [
        0
      ],
      "name": "Lijun Wan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7pzd615nexwr2.bib",
  "cited_by": 0,
  "doi": "10.3389/fonc.2026.1989523",
  "fulltext_url": null,
  "id": "7pzd615nexwr2",
  "issns": [
    "2234-943X"
  ],
  "landing_url": "https://www.frontiersin.org/articles/10.3389/fonc.2026.1989523/full",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [],
  "openalex": null,
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": "Frontiers Media SA",
  "ris": "https://research.draconitic.com/paper/7pzd615nexwr2.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T12:21:46Z",
      "native_id": "10.3389/fonc.2026.1989523",
      "source": "crossref",
      "url": "https://www.frontiersin.org/articles/10.3389/fonc.2026.1989523/full"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "issn:2234-943X",
      "subfield": "oncology"
    }
  ],
  "title": "Association between preoperative MRI-measured membranous urethral length and early urinary continence recovery after robot-assisted radical prostatectomy: a retrospective cohort study",
  "title_text": "Association between preoperative MRI-measured membranous urethral length and early urinary continence recovery after robot-assisted radical prostatectomy: a retrospective cohort study",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T00:21:26Z",
  "url": "https://research.draconitic.com/paper/7pzd615nexwr2",
  "venue": "Frontiers in Oncology",
  "versions": []
}