Osteoclasts and their precursors are present in the induced-membrane during bone reconstruction using the Masquelet technique - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Tissue Engineering and Regenerative Medicine Année : 2017

Osteoclasts and their precursors are present in the induced-membrane during bone reconstruction using the Masquelet technique

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Résumé

In 2000, Masquelet reported a long bone reconstruction technique using an induced membrane formed around a polymethylmethacrylate (PMMA) spacer placed in the defect with appropriate stabilization followed by secondary bone graft after PMMA removal. This reconstruction procedure allows rapid and safe bone reformation for septic, traumatic, neoplastic or congenital bone defects. A rat model of the Masquelet technique was developed to further characterize the biological activities of this induced membrane. Our model allows healing of a critical-sized femoral defect (8 mm) by means of this procedure over a period of 18 weeks. Comparison of induced membranes obtained 3, 4, 5 and 6 weeks after PMMA insertion indicated that this tissue changes over time. Several mineralization spots and bone cells were observed in contact with the PMMA, when assessed by Alizarin Red, Von Kossa, Alkaline phosphatase and Tartrate-resistant acid phosphatase staining of the membranes. CTR (calcitonin receptor)- and RANK (Receptor Activator of Nuclear factor Kappa B)-positive mononuclear cells were detected in the induced membrane, confirming the presence of osteoclasts in this tissue. These cells were observed in a thin, highly cellular layer in the induced membrane in contact with the PMMA. Together, these findings suggest that the membrane is able to promote osteointegration of autologous corticocancellous bone grafts during the Masquelet technique by creating local conditions that may be favourable to graft bone remodelling and osteointegration. Copyright (C) 2014 John Wiley & Sons, Ltd.
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Dates et versions

hal-03564977 , version 1 (10-02-2022)

Identifiants

Citer

Richard Gouron, Laurent Petit, Cedric Boudot, Isabelle Six, Michel Brazier, et al.. Osteoclasts and their precursors are present in the induced-membrane during bone reconstruction using the Masquelet technique. Journal of Tissue Engineering and Regenerative Medicine, 2017, 11 (2), pp.382-389. ⟨10.1002/term.1921⟩. ⟨hal-03564977⟩
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