Host protection against deliberate bacterial contamination of an extracellular matrix bioscaffold versus Dacron? mesh in a dog model of orthopedic soft tissue repair

2003 ◽  
Vol 67B (1) ◽  
pp. 648-654 ◽  
Author(s):  
Stephen F. Badylak ◽  
Ching Ching Wu ◽  
Melissa Bible ◽  
Edward McPherson
2021 ◽  
pp. 088532822110457
Author(s):  
Matthew J Smith ◽  
Sandi G Dempsey ◽  
Robert W Veale ◽  
Claudia G Duston-Fursman ◽  
Chloe A F Rayner ◽  
...  

Decellularized extracellular matrix (dECM)–based biomaterials are of great clinical utility in soft tissue repair applications due to their regenerative properties. Multi-layered dECM devices have been developed for clinical indications where additional thickness and biomechanical performance are required. However, traditional approaches to the fabrication of multi-layered dECM devices introduce additional laminating materials or chemical modifications of the dECM that may impair the biological functionality of the material. Using an established dECM biomaterial, ovine forestomach matrix, a novel method for the fabrication of multi-layered dECM constructs has been developed, where layers are bonded via a physical interlocking process without the need for additional bonding materials or detrimental chemical modification of the dECM. The versatility of the interlocking process has been demonstrated by incorporating a layer of hyaluronic acid to create a composite material with additional biological functionality. Interlocked composite devices including hyaluronic acid showed improved in vitro bioactivity and moisture retention properties.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
S. E. Smith ◽  
R. A. White ◽  
D. A. Grant ◽  
S. A. Grant

When using heterogeneous extracellular matrix (ECM) derived scaffolds for soft tissue repair, current methods of in vivo evaluation can fail to provide a clear distinction between host collagen and implanted scaffolds making it difficult to assess host tissue integration and remodeling. The purpose of this study is both to evaluate novel scaffolds conjugated with nanoparticles for host tissue integration and biocompatibility and to assess green fluorescent protein (GFP) expressing swine as a new animal model to evaluate soft tissue repair materials. Human-derived graft materials conjugated with nanoparticles were subcutaneously implanted into GFP expressing swine to be evaluated for biocompatibility and tissue integration through histological scoring and confocal imaging. Histological scoring indicates biocompatibility and remodeling of the scaffolds with and without nanoparticles at 1, 3, and 6 months. Confocal microscope images display host tissue integration into scaffolds although nonspecificity of GFP does not allow for quantification of integration. However, the confocal images do allow for spatial observation of host tissue migration into the scaffolds at different depths of penetration. The study concludes that the nanoparticle scaffolds are biocompatible and promote integration and that the use of GFP expressing swine can aid in visualizing the scaffold/host interface and host cell/tissue migration.


2009 ◽  
Vol 26 (4) ◽  
pp. 507-523 ◽  
Author(s):  
Kevin G. Cornwell ◽  
Adam Landsman ◽  
Kenneth S. James

2006 ◽  
Vol 30 (4) ◽  
pp. 233-236 ◽  
Author(s):  
Sarunas Tarasevicius ◽  
Uldis Kesteris ◽  
Romas Jonas Kalesinskas ◽  
Hans Wingstrand

2018 ◽  
Author(s):  
Jonathan S. Friedstat ◽  
Michelle R Coriddi ◽  
Eric G Halvorson ◽  
Joseph J Disa

Wound management and soft-tissue repair can vary depending on the location. The head and neck, chest and back, arm and forearm, hand, abdomen, gluteal area and perineum, thigh, knee, lower leg, and foot all have different local options and preferred free flaps to use for reconstruction. Secondary reconstruction requires a detailed analysis of all aspects of the wound including any scars, soft tissue and/or skin deficits, functional defects, contour defects, complex or composite defects, and/or unstable previous wound coverage. Careful monitoring of both the patient and reconstruction is necessary in the postoperative period to ensure long-term success.   This review contains 2 figures and 17 references. Key Words: free tissue transfer, pedicle flaps, soft-tissue coverage, wound closure, wound healing, wound management, wound reconstruction, tissue flaps


Sign in / Sign up

Export Citation Format

Share Document