Open Versus Robotic Retromuscular Ventral Hernia Repair
ORREO
Prospective Randomized Control Trial of Open Versus Robotic REtrOmuscular Ventral Hernia Repair (ORREO Trial)
1 other identifier
interventional
101
0 countries
N/A
Brief Summary
The purpose of this study is to determine how the robotic retromuscular hernia repair compares to the open retromuscular hernia repair for large hernia defects in patients at higher risk of wound complications.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Dec 2016
Longer than P75 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2016
CompletedFirst Submitted
Initial submission to the registry
December 15, 2016
CompletedFirst Posted
Study publicly available on registry
January 2, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 26, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
November 26, 2024
CompletedResults Posted
Study results publicly available
August 7, 2025
CompletedAugust 7, 2025
August 1, 2025
8 years
December 15, 2016
April 29, 2025
August 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Composite Outcome of Diagnosis of Surgical Site Occurrence or Infection, Hospital Readmission, or Hernia Recurrence
A composite outcome of events which are clinically significant including but not limited to seroma requiring procedural intervention, skin dehiscence, cellulitis, hematoma, skin necrosis, and surgical site infections which may require interventions such as wound care or antibiotic therapy.
Through study completion, an average of 2 years
Secondary Outcomes (20)
All Surgical Site Occurrences
Post-operatively: 2 weeks, 6 weeks, 6 months, 1 year, 2 years
Surgical Site Occurrences Requiring Procedural Intervention
Post-operatively: 2 weeks, 6 weeks, 6 months, 1 year, 2 years
All Surgical Site Infections
Post-operatively: 2 weeks, 6 weeks, 6 months, 1 year, 2 years
Surgical Site Infections Requiring Procedural Intervention
Post-operatively: 2 weeks, 6 weeks, 6 months, 1 year, 2 years
Length of Stay at Hospital Measured in Days
Time from procedure until discharge, an expected range of 2 to10 days
- +15 more secondary outcomes
Study Arms (2)
robotic ventral hernia repair (VHR)
ACTIVE COMPARATORRobotic VHR
open ventral hernia repair (VHR)
ACTIVE COMPARATOROpen VHR
Interventions
An open retromuscular ventral hernia repair involves an incision through your abdominal wall, most often through a prior surgery scar. The contents of the hernia, which may include intestine or fatty tissue, are returned into the abdominal cavity. The posterior (inner-most) layer of the abdominal wall is separated from the muscle and closed, which closes the abdominal cavity. Mesh is then placed over that closed layer, which is outside of the abdominal cavity, but below the abdominal muscles. The anterior (outer-most) layer of the abdominal wall is then closed over the mesh, which closes the hernia.
A robotic retromuscular ventral hernia repair involves a similar separation of the layers of the abdominal wall, similar mesh placement, and similar closure of the hernia defect. The surgical robot is a tool that allows your surgeon to place long, narrow instruments through small incisions in order to perform surgery from the inside of your abdomen. Rather than one longer incision in the middle of your abdomen, four to six small incisions, about 1 inch, are made along the outer part of your abdomen between the rib cage and hip.
Eligibility Criteria
You may qualify if:
- Ventral or incisional hernia measuring ≥ 7 cm and ≤ 15 cm.
- At least one of the following risk factors: Body Mass Index \> 30, Chronic Obstructive Pulmonary Disease, Diabetes Mellitus, current smoker (within 1 month)
You may not qualify if:
- Current abdominal wall infection
- Presence of ileostomy, colostomy, or ileal conduit
- Center for Disease Control wound class 3 or 4
- Hernia defect \< 7 cm or \>15 cm
- Pregnant women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Abby Birrell, Study Coordinator
- Organization
- Prisma Health
Study Officials
- PRINCIPAL INVESTIGATOR
Jeremy A Warren, MD
Prisma Health-Upstate
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 15, 2016
First Posted
January 2, 2017
Study Start
December 1, 2016
Primary Completion
November 26, 2024
Study Completion
November 26, 2024
Last Updated
August 7, 2025
Results First Posted
August 7, 2025
Record last verified: 2025-08
Data Sharing
- IPD Sharing
- Will share
All patients will be entered prospectively into the Americas Hernia Society Quality Collaborative (AHSQC) database.