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.
Subject(s)
Extracellular Matrix/transplantation , Hernia , Herniorrhaphy/methods , Urinary Bladder Diseases/surgery , Urinary Bladder/surgery , Animals , Disease Models, Animal , Swine , Swine, Miniature , Urinary Bladder/pathology , Urinary Bladder Diseases/pathologyABSTRACT
Las lesiones traumáticas retroperitoneales constituyen un desafío para el cirujano de traumatología. Ocurren generalmente en el contexto de un paciente politraumatizado, con múltiples lesiones asociadas y en el que los procedimientos invasivos tienen un rol preponderante en el diagnóstico de estas lesiones. El retroperitoneo es la región anatómica que presenta mayores tasas de mortalidad, por lo que el diagnóstico precoz y tratamiento de estas lesiones adquiere especial relevancia. El objetivo de este trabajo es presentar la evidencia científica publicada hasta el momento en cuanto a su prevalencia, mecanismo lesional, métodos diagnósticos y tratamiento mediante una revisión de la literatura internacional de los últimos 70 años. Como conclusión, en esta revisión sistemática se pone de manifiesto una creciente tendencia al manejo no quirúrgico de las lesiones que afectan el retroperitoneo
Traumatic retroperitoneal injuries constitute a challenge for trauma surgeons. They usually occur in the context of a trauma patient with multiple associated injuries, in whom invasive procedures have an important role in the diagnosis of these injuries. The retroperitoneum is the anatomical region with the highest mortality rates, therefore early diagnosis and treatment of these lesions acquire special relevance. The aim of this study is to present current published scientific evidence regarding incidence, mechanism of injury, diagnostic methods and treatment through a review of the international literature from the last 70 years. In conclusion, this systematic review showed an increasing trend towards non-surgical management of retroperitoneal injuries
