Open abdominal wounds present a unique set of challenges for surgeons and multidisciplinary care teams. In addition to protecting exposed viscera and managing fluid loss, clinicians must address progressive fascial retraction and loss of domain or risk delayed and failed primary closure. These risks can lead to significant post-operative complications, extended hospitalization, and increased healthcare costs.
The AbClo™ Abdominal Fascia Closure Device was developed to support the abdominal wall’s biomechanical integrity and improve post-operative healing outcomes by stabilizing the fascia and facilitating early primary closure. In this article, we explore why maintaining the integrity of the abdominal fascia matters, the challenges of post-operative healing, how AbClo provides structural support, the clinical benefits of AbClo reported in the literature, and representative case studies from real-world use.
Understanding the Importance of Abdominal Fascia
The abdominal fascia consists of connective tissues and aponeurotic layers that provide structural integrity to the abdominal wall. Following trauma or major laparotomy, these layers may be intentionally left unapproximated to permit decompression and access for repeated interventions. When this occurs, the natural elastic recoil of the fascial edges leads to lateral retraction. Over time, this phenomenon increases the fascial gap and makes definitive closure more challenging.
Conventional temporary abdominal closure techniques such as negative pressure wound therapy (NPWT) protect the viscera and manage fluids but do not provide active traction to counter fascia retraction. Without a mechanism to maintain tension and midline alignment, the likelihood of delayed or failed primary closure increases — along with the associated risk of infection, fistula formation, ventral hernias, and prolonged recovery.
Post-Operative Healing Challenges
Post-operative healing after open abdomen procedures involves a delicate balance between physiologic stability and mechanical support:
Fascial Retraction:
After left-open laparotomy, the abdominal wall muscles and fascia retract laterally increasing the fascial gap, unless countered by tension-maintaining strategies.
Loss of Domain:
Prolonged open abdomen periods allow the abdominal cavity to lose domain — the ability of the abdominal wall to contain the viscera — which complicates later closure.
Secondary Complications:
Extended time with an open abdomen elevates risk for infections, enteroatmospheric fistulas, and fluid imbalances. These complications can increase length of stay, lead to complex hernia formation, and negatively impact quality of life.
OR Dependence:
Invasive traction systems often require repeated operating room (OR) trips for adjustment, increasing procedural risk and resource utilization.
These factors highlight why traditional approaches offer an incomplete solution and why devices that support both physiologic healing and mechanical alignment are essential.
How AbClo Provides Structural Support
The AbClo™ Abdominal Fascia Closure Device is designed to address both the mechanical and physiologic demands of open abdomen care. AbClo employs a non-invasive, pressure-regulated traction system that gradually reapproximates the fascial edges without damaging tissue or requiring invasive fixation.
Mechanism of Action:
• Circumferential dynamic force applied across the abdominal wall prevents lateral fascial retraction.
• Consistent appositional tension enables controlled medialization of skin, fascia, and musculature as edema resolves.
• Quantitative pressure monitoring helps maintain therapeutic ranges that avoid excessive tension and potential compartment syndrome.
Benefits Over Static or Invasive Methods:
• Can be managed at the bedside, reducing OR dependency.
• Does not damage fascial edges or skin, preserving tissue integrity.
• Works synergistically with NPWT to maintain abdominal domain and support healing.
Because of this design, AbClo helps maintain the abdominal wall’s structural integrity throughout the post-operative period, facilitating conditions favorable for early primary fascial closure.
Clinical Benefits of AbClo
Clinical evidence indicates that AbClo’s approach to fascial stabilization and early traction produces meaningful improvements in healing outcomes.
1. High Primary Fascial Closure Rates
In retrospective and cohort studies, primary closure rates with AbClo have reached up to 98% when applied early (within 24 hours of initial laparotomy), significantly exceeding historical averages of ~62% seen with NPWT alone.
2. Reduction in Fascial Gap Over Time
Early application of AbClo has been shown to reduce the fascial gap by approximately 75% within the first 24 hours, helping restore domain and facilitating early definitive closure.
3. Faster Time to Closure
Comparative analyses indicate that patients treated with AbClo reach primary fascial closure faster than other invasive traction alternatives, with data showing several days shortened to closure. In a specific comparison with the Wittmann Patch, closure was achieved in 3.7 days ± 2.1 days with AbClo and NPWT versus 6.4 days ± 5.1 days with the Wittmann Patch and NPWT.
4. Fewer OR Takebacks
Reducing operative interventions not only streamlines care but also lowers the risk of complications associated with repeated surgeries. Multiple studies demonstrate a reduction in the number of OR takebacks when using AbClo versus invasive traction systems.
5. Economic Benefits
Economic evaluations suggest that integrating AbClo into standard management can result in meaningful cost savings over NPWT alone, driven by reduced resource use and improved primary closure success.
These clinical outcomes suggest that AbClo’s stabilization of the fascial edges not only enhances mechanical healing but also supports broader improvements in patient recovery trajectories.
Case Studies
Real-world case studies illustrate AbClo’s role in facilitating fascial stabilization and transforming post-operative healing.
Case Study 1: Complex Trauma with Multiple Takebacks
A 41-year-old male with a gunshot wound underwent damage control laparotomy with subsequent open abdomen management. AbClo was applied at the bedside and maintained gradual reduction of the fascial gap throughout treatment. Despite high fluid balance and three takeback surgeries, the patient achieved primary fascial closure on post-operative day 6, with fascia and skin integrity preserved.
Case Study 2: Post-Operative Closure After Late Placement
In another scenario, a similar trauma patient received AbClo after several washouts and delayed closure attempts. Despite the late placement, AbClo maintained fascial alignment throughout the healing period, and primary fascial closure was achieved by post-operative day 9.
These case examples highlight how AbClo’s dynamic support helps clinicians manage complex healing scenarios without compromising tissue integrity or adding procedural burden.
Conclusion
Stabilizing the abdominal fascia is a critical component of promoting successful post-operative healing after open abdomen procedures. Traditional approaches, while effective for fluid management and temporary wound coverage, lack active mechanisms to counter lateral fascial retraction and support early primary closure.
The AbClo device offers a non-invasive solution that provides controlled structural support, facilitates progressive fascial reapproximation, and enhances the conditions for definitive closure. Supported by clinical evidence and real-world case experience, AbClo’s approach aligns mechanical benefit with improved healing outcomes, reduced complications, and optimized use of healthcare resources.
As surgical care continues to evolve, technologies that emphasize both physiologic preservation and mechanical facilitation will play an increasingly important role in improving post-operative recovery for patients requiring open abdomen management.
References
Mahoney EJ, et al.
Management of the Open Abdomen.
Eastern Association for the Surgery of Trauma (EAST) Practice Management Guideline.
Journal of Trauma and Acute Care Surgery. 2022.
https://journals.lww.com/jtrauma/abstract/2022/09000/management_of_the_open_abdomen__a_systematic.20.aspx
Rezende-Neto JB, et al.
A Novel Non-Invasive Device to Promote Primary Closure of the Fascia in Open Abdomen Patients: A Randomized Controlled Trial.
Trauma Surgery & Acute Care Open. 2020;5:e000523.
https://tsaco.bmj.com/content/5/1/e000523
InventoRR MD.
6 Powerful AbClo Statistics: Facts Based on Peer-Reviewed Clinical Evidence (Part 1).
https://abclomedical.com/6-powerful-abclo-statistics-facts-based-on-peer-reviewed-clinical-evidence-part-1/
InventoRR MD.
6 Powerful AbClo Statistics: Facts Based on Clinical Evidence (Part 2).
https://abclomedical.com/6-powerful-abclo-statistics-facts-based-on-clinical-evidence-part-2/
Chew DS, Dayal T, et al.
Economic Analysis of AbClo: A Novel Abdominal Fascia Closure Device for Patients With an Open Abdomen Following Trauma or Acute Abdominal Surgery.
Health economic evaluation, Medicare-perspective model. 2023.
https://abclomedical.com/publications/
InventoRR MD.
AbClo Product Overview and Case Studies.
Real-world clinical applications demonstrating fascial stabilization, progressive medialization, and successful primary closure.
https://abclomedical.com/product/#case-studies
Mejía-Morales H, Hampton DA.
Do Not Fear the Open Abdomen.
Trauma Surgery & Acute Care Open. 2024;9:e001647.
https://tsaco.bmj.com/content/9/1/e001647
Kirkpatrick AW, et al.
Open Abdomen Management: A Review of Techniques and Outcomes.
World Journal of Emergency Surgery.
Foundational discussion of fascial traction, loss of domain, and closure timing.