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ORION Study: Mesh Position and Risk During Subsequent Minimally Invasive Abdominal Surgery

NCT07384962 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 790

Last updated 2026-06-12

No results posted yet for this study

Summary

Ventral hernia repair is one of the most commonly performed abdominal surgical procedures worldwide, increasingly carried out using minimally invasive techniques. In this setting, mesh reinforcement is standard practice, but the optimal anatomical plane for mesh placement remains debated. Intraperitoneal and extraperitoneal mesh positions may have different long-term consequences, particularly when patients undergo subsequent abdominal surgery. However, prospective data evaluating the impact of prior mesh position on reoperative risk and postoperative outcomes are limited.

The ORION study is a prospective, multicentre, observational cohort study designed to evaluate the impact of prior minimally invasive ventral hernia repair with intraperitoneal versus extraperitoneal mesh placement on subsequent minimally invasive abdominal surgery. The primary objective is to compare the incidence of intraoperative visceral injury during adhesiolysis between the two mesh positions. Secondary objectives include the assessment of adhesion burden and severity, duration and extent of adhesiolysis, conversion to open surgery, and adhesion-related postoperative complications.

In a predefined subgroup of patients undergoing surgery for ventral hernia recurrence, the study also evaluates short-term postoperative outcomes, including chronic post-surgical pain, neuropathic pain features, sensory disturbances, and analgesic use.

By prospectively collecting standardized intraoperative and postoperative data across multiple centres, the ORION study aims to provide real-world evidence on the long-term surgical and functional implications of mesh positioning in minimally invasive ventral hernia repair.

Conditions

  • Ventral Hernia Repair

Sponsors & Collaborators

  • Istituto Auxologico Italiano

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-30
Primary Completion
2027-01-31
Completion
2027-01-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07384962 on ClinicalTrials.gov