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Fractures of allografts used in limb preserving operations

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Summary. One hundred and thirty-seven allografts used since 1986 in limb preserving operations for malignant bone tumours were reviewed. The follow up was longer than two years. There were fourteen fractures (10.2%) in twelve patients at a mean time of 22 months from the operation. Most of them were in the metaphyseal area and were related to perforations of the allograft made for stabilisation with plates, for tendon and ligament reattachment, or any other hole in the allograft. Fractures occurred always after the allograft-host junction was united. Healing was achieved in 7 cases by internal fixation with autologous bone grafting in a mean of 5 months. In cases of multiple fractures of the allograft, the graft was exchanged. We recommend using intramedullary fixation in order to reduce the incidence of allograft fracture, and the use of internal fixation, with intramedullary whenever possible, and autologous bone grafting to achieve consolidation of the fractures.

Résumé. Nous présentons notre expérience 137 allogreffes avec un recul moyen supérieur à deux ans, utilisées depuis 1986 dans la chirugie reconstrutive des sarcomes osseux. Nous avons eu quatorze fractures chez douze patients (10.2%) après un délai moyen Post operative de 22 mois. La plupart étaient métaphysaires en relation avec les perforationś nécessaries pour l’ostéosynthése, pour attaches tendinouses ou d’autres trous sur l’allogreffe. La fracture de l’allogreffe s’est toujours produit nécessaires pour e après a consolidation avec l’os receveur. La consolidation fut obtenue chez sept patients, après ostéosynthése avec autogreffe, en cinq mois de moyenne. En cas de fractures multiples de l’allogreffe, celle-ci fut remplacée. Les auteurs recommandent l’utilisation des clous endomédullaires afin de réduire la fréquence des fractures, ainsi que l’ostésynthese interne (endomédullaire si possible) associée a une autogreffe afin d’obtenir la consolidation des fractures.

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Accepted: 2 June 1997

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San-Julian, M., Cañadell, J. Fractures of allografts used in limb preserving operations. International Orthopaedics SICOT 22, 32–36 (1998). https://doi.org/10.1007/s002640050203

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