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EnglishThe objective of this study was to evaluate whether mesenchymal stem cells (MSC) and platelet lysate (PL) seeded in a fibrin or collagen scaffold could improve the new bone (NB) formation around an uncemented hip prosthesis stem in a sheep model. In vitro expanded MSC were suspended in PL and either mixed with collagen or fibrin gel as delivery vehicle. The cell-gel composites were inserted inside the femoral canal, then the prosthesis was press-fit inserted inside the femur. Identical procedures were performed in a control group, but only the prosthesis was implanted. Histomorphometrical analysis performed 4 months after surgery indicated that the newly formed bone inside the medullary canal, between the inner cortex and the prosthetic stem, was significantly higher in the MSC-PL-collagen group (mean 18.7 ± 4.5%) and in the MSC-PL-fibrin group (mean 18.8 ± 15.2%) when compared to the control group (mean 4.6 ± 2.0%). There was a significantly higher bone-prosthesis contact in the MSC-PL-collagen group (mean 2.7 ± 2.6%) and in the MSC-PL-fibrin group (mean 2.3 ± 3.1%) compared to the control group (mean 0.2 ± 0.1%). The results indicate that MSC and PL in a fibrin or collagen scaffold can promote NB formation around an uncemented hip prosthesis stem.
| Titolo: | Mesenchymal stem cells and platelet lysate in fibrin or collagen scaffold promote non-cemented hip prosthesis integration. | |
| Autore/i: | DOZZA, BARBARA; DI BELLA, CLAUDIA; Lucarelli E.; Giavaresi G.; Fini M.; Tazzari P. L.; GIANNINI, SANDRO; DONATI, DAVIDE MARIA | |
| Autore/i Unibo: | ||
| Anno: | 2011 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/jor.21333 | |
| Abstract: | The objective of this study was to evaluate whether mesenchymal stem cells (MSC) and platelet lysate (PL) seeded in a fibrin or collagen scaffold could improve the new bone (NB) formation around an uncemented hip prosthesis stem in a sheep model. In vitro expanded MSC were suspended in PL and either mixed with collagen or fibrin gel as delivery vehicle. The cell-gel composites were inserted inside the femoral canal, then the prosthesis was press-fit inserted inside the femur. Identical procedures were performed in a control group, but only the prosthesis was implanted. Histomorphometrical analysis performed 4 months after surgery indicated that the newly formed bone inside the medullary canal, between the inner cortex and the prosthetic stem, was significantly higher in the MSC-PL-collagen group (mean 18.7 ± 4.5%) and in the MSC-PL-fibrin group (mean 18.8 ± 15.2%) when compared to the control group (mean 4.6 ± 2.0%). There was a significantly higher bone-prosthesis contact in the MSC-PL-collagen group (mean 2.7 ± 2.6%) and in the MSC-PL-fibrin group (mean 2.3 ± 3.1%) compared to the control group (mean 0.2 ± 0.1%). The results indicate that MSC and PL in a fibrin or collagen scaffold can promote NB formation around an uncemented hip prosthesis stem. | |
| Data prodotto definitivo in UGOV: | 2013-07-01 10:22:11 | |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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