
doi: 10.82308/3609
Les défauts osseux segmentaires sont un défi chirurgical qui peut souvent conduire à l'amputation, à la défiguration ou à une absence totale de fonction de certaines structures de ces patients. Ceci est particulièrement problématique dans les défauts tissulaires complexes segmentaires massifs, où la reconstruction est particulièrement difficile et souvent sous-optimale. Actuellement, les seuls traitements disponibles ont un inconvénient commun : ils reposent sur la greffe de tissus autologues. L'ingénierie tissulaire a un grand potentiel pour créer des substituts à l'os et à d'autres tissus. Cependant, à ce jour, l'un des principaux obstacles rencontrés par ce domaine prometteur est l'obtention d'un cadre vasculaire fonctionnel qui pourrait soutenir la viabilité et la fonctionnalité de l'ensemble. Ce travail vise à explorer l'une des solutions les plus prometteuses à ce problème : la vascularisation in situ de tissus d'ingénierie. Ainsi, au moyen d'une série d'essais expérimentaux précliniques, ce travail vise à évaluer comment la vascularisation des substituts de greffe osseuse pourrait soutenir la croissance tissulaire de novo et éventuellement former un ensemble tissulaire multicouche composite pour les défauts tissulaires complexes segmentaires
Segmental bone defects are a surgical challenge that can many times lead to amputation, disfiguration, or a complete lack of function of certain structures of these patients. This is especially problematic in massive composite tissue defects, where reconstruction is especially difficult and frequently suboptimal. Currently, the only available treatments have a common drawback: they are based on autologous tissue transplantation. Tissue engineering has great potential to create substitutes for bone and other tissues. However, to date, one of the main obstacles that this promising field is finding is obtaining a functional vascular framework that could sustain the construct's viability and functionality. This work aims to explore one of the most promising solutions for this problem: the in-situ vascularization of engineered tissues. Thus, by means of a series of preclinical experimental trials, this work aims to evaluate how vascularization of bone graft substitutes could support de novo tissue growth and eventually form a composite multilayered tissue-engineered construct for segmental complex tissue defects
Gilardino, Miroslav Sergio (Supervisor2)
Barralet, Jake (Supervisor1)
Surgery
Surgery
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