{
  "abstract": "The da Vinci 5 introduces changes in operative workflow and instrument control, but its comparative performance in rectal cancer surgery remains uncertain. We compared operative efficiency and short-term outcomes after platform introduction and explored platform-derived intraoperative measurements. This retrospective single-center study included 202 patients undergoing robot-assisted rectal cancer surgery from July 2025 to September 2026 (Xi, n = 109; da Vinci 5, n = 93). Propensity-score overlap weighting addressed measured differences. The primary outcome was total operative time. HC3 inference was checked using 2,000 bootstrap replicates with propensity-score re-estimation. Retrieved Case Insights records were summarized descriptively. The adjusted difference in total operative time was − 6.9 min (HC3 95% confidence interval [CI], − 24.4 to 10.6; P = 0.439); the bootstrap 95% CI was − 21.8 to 7.8 min. The adjusted risk difference for Clavien–Dindo grade ≥ II complications was − 9.4% points (HC3 95% CI, − 19.8 to 0.9; P = 0.074). Margin positivity occurred in only three patients and was reported descriptively. Inference for postoperative hospital stay depended on the variance method. We did not detect a statistically clear reduction in total operative time after the introduction of the da Vinci 5. Secondary outcomes remain exploratory. Exploratory Case Insights analysis provided descriptive information on instrument-tip force and surgical workflow, warranting further prospective validation of their clinical relevance.\n\nSupplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s11701-026-04141-7.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Gastroenterological Surgery, Saitama Medical University International Medical Center, Hidaka, 350-1298 Japan"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 13,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Yasuhiro Ishiyama",
      "orcid": "0000-0001-7754-7926"
    },
    {
      "affs": [
        0
      ],
      "name": "Yasumitsu Hirano",
      "orcid": "0000-0001-9087-2715"
    },
    {
      "affs": [
        0
      ],
      "name": "Yurie Kitano"
    },
    {
      "affs": [
        0
      ],
      "name": "Nozomi Yamazaki"
    },
    {
      "affs": [
        0
      ],
      "name": "Yoshihiro Sakai"
    },
    {
      "affs": [
        0
      ],
      "name": "Akihito Nakanishi"
    },
    {
      "affs": [
        0
      ],
      "name": "Yusuke Nishi"
    },
    {
      "affs": [
        0
      ],
      "name": "Hiroto Tanaka"
    },
    {
      "affs": [
        0
      ],
      "name": "Hisashi Hayashi"
    },
    {
      "affs": [
        0
      ],
      "name": "Toru Kuramoto"
    },
    {
      "affs": [
        0
      ],
      "name": "Takatsugu Fujii"
    },
    {
      "affs": [
        0
      ],
      "name": "Hirofumi Sugita"
    },
    {
      "affs": [
        0
      ],
      "name": "Chikashi Hiranuma"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ae8z1yt2cm16k.bib",
  "cited_by": 0,
  "doi": "10.1007/s11701-026-04141-7",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13723435/",
  "id": "ae8z1yt2cm16k",
  "issns": [
    "1863-2483",
    "1863-2491"
  ],
  "landing_url": "https://doi.org/10.1007/s11701-026-04141-7",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Research"
    ],
    [
      "openalex",
      "2730|Colorectal Cancer Surgical Treatments"
    ]
  ],
  "openalex": "W7225011199",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/s11701-026-04141-7.pdf",
  "pmcid": "PMC13723435",
  "pmid": "42965763",
  "published": "2026-10-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ae8z1yt2cm16k.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T12:22:04Z",
      "native_id": "PMC13723435",
      "source": "pmc",
      "url": "https://doi.org/10.1007/s11701-026-04141-7"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2730|Colorectal Cancer Surgical Treatments",
      "subfield": "oncology"
    }
  ],
  "title": "Operative efficiency and short-term outcomes of da Vinci 5 versus da Vinci Xi in robotic rectal cancer surgery: an overlap-weighted cohort study with an exploratory case insights analysis",
  "title_text": "Operative efficiency and short-term outcomes of da Vinci 5 versus da Vinci Xi in robotic rectal cancer surgery: an overlap-weighted cohort study with an exploratory case insights analysis",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:20:15Z",
  "url": "https://research.draconitic.com/paper/ae8z1yt2cm16k",
  "venue": "Journal of Robotic Surgery",
  "versions": []
}