Evidence map›Paper›PMID 40856029›Full record

ArticleAnnals of coloproctology2025

Propensity score-matched comparison of robot-assisted rectal cancer surgery using hinotori and da Vinci.

Hidetoshi Katsuno, Koji Morohara, Tomoyoshi Endo, Kenji Kikuchi, Kenichi Nakamura, Kazuhiro Matsuo, Takahiko Higashiguchi, Tetsuya Koide, Hiromi Kanai, Satoshi Arakawa and 2 more

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In one paragraph

Article in Annals of coloproctology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Experience with hinotoriJournal of the anus, rectum and colon · 2026
    Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Hidetoshi KatsunoDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Koji MoroharaDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Tomoyoshi EndoDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Kenji KikuchiDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Kenichi NakamuraDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Kazuhiro MatsuoDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Takahiko HigashiguchiDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Tetsuya KoideDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Hiromi KanaiDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.
Satoshi ArakawaDepartment of Gastrointestinal Surgery, Fujita Health University Bantane Hospital, Nagoya, Japan.
Tsunekazu HanaiDepartment of Gastrointestinal Surgery, Fujita Health University Bantane Hospital, Nagoya, Japan.
Zenichi MoriseDepartment of Surgery, Okazaki Medical Center, Fujita Health University, Okazaki, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe hinotori Surgical Robot System (hereafter "hinotori") is a novel platform for robot-assisted surgery, while the da Vinci Surgical System ("da Vinci") remains the field standard. This study compared short-term surgical outcomes of rectal cancer surgery between these systems using propensity score-matched analysis.

methodsA retrospective analysis was conducted of 209 consecutive patients who underwent robot-assisted surgery with the da Vinci and 58 patients with the hinotori system. After 2:1 propensity score matching, 108 da Vinci and 54 hinotori cases were included. Surgical outcomes, including operative time, blood loss, postoperative complications, length of hospital stay, and pathological findings, were compared.

resultsAfter matching, the baseline demographics were well balanced between groups. The hinotori system was associated with significantly longer operative time (266 minutes vs. 227 minutes, P=0.014) and console time (156 minutes vs. 110 minutes, P=0.001). However, estimated blood loss and postoperative complication rate did not differ significantly. Pathological findings, including the number of lymph nodes retrieved and the incidence of positive surgical margins, were comparable between systems.

conclusionsIn rectal surgery, the hinotori system demonstrates comparable short-term safety outcomes to da Vinci. Despite longer operative times and limited integrated instrumentation, hinotori-assisted procedures may be feasible in selected patients. Further research should address long-term oncological outcomes and strategies to improve procedural efficiency.

Indexed as

Postoperative complicationsPropensity scoreRectal neoplasmsRobotic surgical procedures

Identifiers

PMID40856029
PMCPMC12395265

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.