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Open research questions in Minimally Invasive Surgical Techniques

25 unresolved questions extracted from the limitations and future-work sections of 408 Minimally Invasive Surgical Techniques papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • the most important limitation of this study is its size. Finally, the study did not include a microsurgical arm, which is precisely the technique the wider literature identifies as the reference standard; our data therefore speak to the laparoscopic-versus-open question rather than to the question of which technique is optimal overall.

    Optimizing Varicocele Treatment: A Comparative Review of Surgical and Minimally Invasive Approaches · 2026 · DOI

  • Although this report is limited by the small number of cases and the absence of comparative analysis with other SP or multiport robotic approaches, it demonstrates the technical feasibility of an intercostal SP approach when a floating port technique is used. Consequently, intercostal SP approaches have rarely been reported. Larger studies are warranted to further evaluate the reproducibility, safety, and long-term outcomes of this technique and to define appropriate indi- cations according to tumor size, location, and extent of lo- cal invasion.

    Floating Intercostal Port Technique for Single-Port Robotic Resection of Posterior Mediastinal Schwannomas: A Case Report · 2026 · DOI

  • Elevated body mass index (BMI), large uterine size and small pelvis were identified as key variables: increasing inter-port distance was recommended for BMI >30, cranial port displacement for large uteri, while no consensus emerged for patients with a small pelvis.

    Port placement and patient-specific docking strategies for robotic hysterectomy with the Hugo™ RAS system: an international Delphi consensus · 2026 · DOI

  • The confounding effect of baseline Body Mass Index (BMI) differences between groups on time to first flatus and other surgical outcomes in vNOTES versus laparoscopy ovarian cystectomy procedures requires prospective investigation in BMI-stratified subgroups or BMI-matched cohorts.

    Vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for ovarian cystectomy: a prospective, open-label, randomized, non-inferiority pilot trial · 2026 · DOI

  • The involvement of multiple surgeons performing laparoscopic procedures with varied ancillary surgical techniques introduces technical heterogeneity that limits intergroup comparability in vNOTES versus laparoscopy ovarian cystectomy trials; standardized surgical protocols and surgeon-specific outcome stratification are needed.

    Vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for ovarian cystectomy: a prospective, open-label, randomized, non-inferiority pilot trial · 2026 · DOI

  • Long-term reproductive and oncological outcomes following vNOTES ovarian cystectomy remain uninvestigated; the current trial only assessed short-term endpoints, necessitating prospective follow-up studies measuring cyst recurrence rates and reproductive function (fertility, pregnancy outcomes) at 6-24 months post-procedure.

    Vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for ovarian cystectomy: a prospective, open-label, randomized, non-inferiority pilot trial · 2026 · DOI

  • The increased estimated blood loss in the vNOTES group (median 30 ml vs 10 ml, p<0.001) compared to laparoscopy requires mechanistic investigation; specific hemostasis techniques and vessel sealing strategies optimized for transvaginal natural orifice transluminal endoscopic surgery ovarian cystectomy should be evaluated to reduce intraoperative bleeding.

    Vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for ovarian cystectomy: a prospective, open-label, randomized, non-inferiority pilot trial · 2026 · DOI

  • The study lacked sufficient statistical power to detect differences in severe adverse events due to low event rates; a larger, adequately powered randomized trial comparing vNOTES versus laparoscopy for ovarian cystectomy is needed to reliably establish differences in severe event incidence (15% vs 3%) and postoperative bleeding complications.

    Vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for ovarian cystectomy: a prospective, open-label, randomized, non-inferiority pilot trial · 2026 · DOI

  • Vessel slings can be applied robotically, however their ability to adequately control blood flow in vessels containing plaque and calcium has not been established.

    A proposed technique for robotic port placement and arterial control of the femoral region for a peripheral arterial bypass with the Da Vinci SP system · 2026 · DOI

  • The limitations of this study include its retrospective multicenter design and baseline heterogeneity between groups, which may have introduced selection bias.

    Comparison of short and long-term outcomes of intracorporeal vs extracorporeal anastomosis in laparoscopic right hemicolectomy for colon cancer: A multicentric study · 2026 · DOI

  • Robotic pancreaticoduodenectomy (RPD) has been increasingly adopted; however, its safety and efficacy in elderly patients remain controversial.

    Robotic versus open pancreaticoduodenectomy in elderly patients: a meta-analysis · 2026 · DOI

  • Objective: Sacral colpopexy is a well-established procedure for apical suspension, but the relative outcomes of abdominal, laparoscopic, and vaginal approaches remain debated.

    Comparative outcomes of abdominal, laparoscopic, and vaginal sacral colpopexy: A national analysis of apical suspension procedures (2014-2022) · 2026 · DOI

  • Although transumbilical access offers shorter operative time and superior cosmetic outcomes, its safety remains debated as standard preoperative skin preparation may not adequately eliminate umbilical microflora.

    Impact of incision preference and umbilical care on laparoscopic cholecystectomy outcomes: A randomized controlled trial · 2026 · DOI

  • this ensured One important limitation of this study is that all manual reductions were performed under the supervision of a single, highly experienced surgeon.

    Therapeutic strategy for incarcerated obturator hernia: laparoscopic surgery after ultrasound-guided noninvasive manual reduction · 2026 · DOI

  • Impact statementWhat is already known on this subject? Several studies examining the possible benefits and drawbacks of a 3D imaging system versus 2D in laparoscopic surgery have brought about conflicting results.

    Comparison of surgical outcomes between 3-dimensional and 2-dimensional laparoscopy of ovarian cyst (LOOC): a randomised controlled trial · 2021 · DOI

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25 open questions have been extracted from the limitations and future-work passages of 408 Minimally Invasive Surgical Techniques papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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