dc.contributor.advisor | Murphy, Mary | |
dc.contributor.advisor | Shannon, Fintan | |
dc.contributor.author | Neary, Martin | |
dc.date.accessioned | 2018-02-15T09:12:53Z | |
dc.date.available | 2018-02-15T09:12:53Z | |
dc.date.issued | 2018-02-14 | |
dc.identifier.uri | http://hdl.handle.net/10379/7137 | |
dc.description.abstract | Purpose: To develop a subchondral defect in a rabbit model and assess cartilage repair using a mesenchymal stem cell-seeded scaffold.
Materials and Methods: To achieve this goal, a bovine explant model and two pilot rabbit studies were conducted. Initial work using chondral explant tissue harvested from stifle joints of 12-month-old cattle sourced from a local abattoir, followed by a pilot rabbit study demonstrated that a chondral defect was an unsuitable model for the scaffold being studied. Assessment of a novel reproducible technique for subchondral defect creation was conducted using a rabbit model in accordance with University guidelines and ethical approval with 4 test groups, empty 3mm x1mm defect (n=6), empty 3mm x3mm defect (n=6), press-fit scaffold in 3mm x1mm defect (n=6), press-fit cell-seeded scaffold in 3mm x1mm defect (n=6). l. In brief, skeletally mature rabbits, weighing more than 3kg were anesthetized and bilateral defects were created on the medial femoral condyle using an electrical drill with a previously sterilized 2.8mm drill bit covered with a sterile depth stop. The walls of the defect were finished with a dental curette, and the scaffold press-fit into place. Defects was assessed histologically after 28 days implantation.
Results: The subchondral defects could be created with the same reproducibility as osteochondral defects and tissue repair was achieved in both cell free and cell-seeded scaffolds.
Conclusion: A reproducible subchondral defect was successfully created in a rabbit model to assess cartilage repair using a cell-seeded scaffold. Early cartilage repair was achieved in both cell free and cell-seeded scaffolds, with improved repair seen in the cell free scaffold group | en_IE |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | Cartilage Repair | en_IE |
dc.subject | Stem cell | en_IE |
dc.subject | Chondrogenesis | en_IE |
dc.subject | Scaffold | en_IE |
dc.subject | Chondral defect | en_IE |
dc.subject | Rabbit model | en_IE |
dc.subject | Subchondral defect | en_IE |
dc.subject | Arthritis | en_IE |
dc.subject | Orthopaedics | en_IE |
dc.subject | Medicine | en_IE |
dc.subject | Surgery | en_IE |
dc.title | Cartilage repair in a rabbit model: Development of a novel subchondral defect and assessment of early cartilage repair using a rabbit mesenchymal stem cell seeded scaffold | en_IE |
dc.type | Thesis | en_IE |
dc.contributor.funder | Science Foundation Ireland | en_IE |
dc.contributor.funder | European Union’s 7th Framework Programme | en_IE |
dc.contributor.funder | Wellcome Trust Biomedical Vacation Scholarships | en_IE |
dc.local.note | A rabbit model was used to demonstrate improved articular cartilage repair when subchondral defects were treated using a synthetic scaffold, with and without mesenchymal stem cell seeding | en_IE |
dc.local.final | Yes | en_IE |
nui.item.downloads | 108 | |