D Adam Young1, Nicolette Jackson2, Catherine A Ronaghan3, Collin Em Brathwaite4, Thomas W Gilbert1,5. 1. ACell Inc., Columbia, MD 21046, USA. 2. Alizée Pathology LLC, Thurmont, MD 21788, USA. 3. Department of Surgery, Texas Tech University, Lubbock, TX 79409, USA. 4. Department of Surgery, NYU Winthrop Hospital, Mineola, NY 11501, USA. 5. McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA.
Abstract
AIM: Not all biologically derived materials elicit the same host response when used for reinforcement of ventral hernia repairs. This study aimed to evaluate the remodeling characteristics of the abdominal wall following reinforcement with urinary bladder matrix (UBM) in a large animal preclinical model of ventral hernia repair. MATERIALS & METHODS: Midline defects in 36 Yucatan minipigs were reinforced with UBM-derived surgical devices using a classic Rives-Stoppa-Wantz approach, and compared with primary repair controls. After 3 or 8 months, the abdominal wall was explanted for histological and mechanical analysis. RESULTS & CONCLUSION: All UBM-derived surgical devices were completely resorbed within 8 months and facilitated deposition of vascularized, biomechanically functional connective tissue in the retrorectus plane, with no evidence of hernia formation.
AIM: Not all biologically derived materials elicit the same host response when used for reinforcement of ventral hernia repairs. This study aimed to evaluate the remodeling characteristics of the abdominal wall following reinforcement with urinary bladder matrix (UBM) in a large animal preclinical model of ventral hernia repair. MATERIALS & METHODS:Midline defects in 36 Yucatan minipigs were reinforced with UBM-derived surgical devices using a classic Rives-Stoppa-Wantz approach, and compared with primary repair controls. After 3 or 8 months, the abdominal wall was explanted for histological and mechanical analysis. RESULTS & CONCLUSION: All UBM-derived surgical devices were completely resorbed within 8 months and facilitated deposition of vascularized, biomechanically functional connective tissue in the retrorectus plane, with no evidence of hernia formation.
Authors: Madeline Cramer; Jordan Chang; Hongshuai Li; Aurelie Serrero; Mohammed El-Kurdi; Martijn Cox; Frederick J Schoen; Stephen F Badylak Journal: J Biomed Mater Res A Date: 2021-07-29 Impact factor: 4.854