Comparison capacity of collagen hydrogel, mix‐powder and in situ hydroxyapatite/collagen hydrogelscaffolds with and without mesenchymal stem cells and platelet‐rich plasma in regeneration of critical sized bone defect in a rabbit animal model

Author(s):  
Behnam Bakhtiarimoghadam ◽  
Sadegh Shirian ◽  
Esmaeil Mirzaei ◽  
Siavash Sharifi ◽  
Iraj Karimi ◽  
...  
Author(s):  
Girotti Alessandra ◽  
Iba�ez Arturo ◽  
Trigueros Larrea Jos� Mar�a ◽  
Lamus Molina Jos� Francisco ◽  
Alonso Matilde ◽  
...  

2017 ◽  
Vol 5 (7_suppl6) ◽  
pp. 2325967117S0022 ◽  
Author(s):  
Cecilia Pascual-Garrido ◽  
Francisco Rodriguez Fontan ◽  
Jorge Chahla ◽  
Karin Payne ◽  
Elizabeth Aisenbrey ◽  
...  

2012 ◽  
Vol 196 (6) ◽  
pp. 523-533 ◽  
Author(s):  
P. Kasten ◽  
M. Beverungen ◽  
H. Lorenz ◽  
J. Wieland ◽  
M. Fehr ◽  
...  

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Chun-Cheng Lin ◽  
Shih-Chieh Lin ◽  
Chao-Ching Chiang ◽  
Ming-Chau Chang ◽  
Oscar Kuang-Sheng Lee

Clinically, in patients who sustain severe open fractures, there is not only a segmental bone defect needed to be reconstructed but also insufficient healing capacity due to concomitant damages to the periosteum and surrounding soft tissues. For studying the reconstruction of bone defects associated with massive loss of periosteum and surrounding soft tissues, there are no well-established preclinical models in large animals in the literature. The purpose of the study was to generate a large animal model of bone defect with massive periosteum loss and to adopt a tissue engineering approach to achieve rapid bony union with stem cells and biomaterials. In this study, a bone defect with massive periosteum stripping was generated in pigs, which was followed by emptying nearby canal marrow including fat and cancellous bone. The stripped periosteum was a mimic to the situation in the Gustilo type 3 open fractures. Bone defects were then reconstructed by impacting the biocompatible ceramic scaffold, morselized tricalcium phosphate (TCP) loaded with human adipose tissue-derived mesenchymal stem cells (hMSCs). Radiological and pathological assessments indicated that TCP and hMSCs synergistically promoted bone healing with increased lamination and ingrowth of vessels. Both bridging periosteum formation and gap filling were induced rapidly. In conclusion, a porcine model of segmental bone loss with damage of surrounding periosteum was created. Reconstruction of such defects with hMSCs and TCP achieved rapid union of bone defects associated with massive periosteal stripping.


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