Volume 41, Issue 1, Pages 49-56 (January 2010) Use of the Induced Membrane Technique for Bone Tissue Engineering Purposes: Animal Studies Véronique Viateau, DMV, PhD, Morad Bensidhoum, PhD, Geneviève Guillemin, PhD, Hervé Petite, PhD, Didier Hannouche, DM, PhD, Fani Anagnostou, DM, Philippe Pélissier, DM Orthopedic Clinics Volume 41, Issue 1, Pages 49-56 (January 2010) DOI: 10.1016/j.ocl.2009.07.010 Copyright © 2010 Terms and Conditions
Fig. 1 Immunohistochemical staining of the encapsulation membrane sampled at time of cement explantation from a sheep metatarsal defect (A). Type I collagen staining shows that the membrane is mainly composed of an alveolar organization of parallel bands of collagen fibers (B). Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions
Fig. 2 Immunohistochemical staining of the encapsulation membrane sampled at time of cement explantation from a sheep metatarsal defect. Lycopersicon esculentum lectin labeling of vessels in longitudinal (A) and transverse (B) sections demonstrating the perpendicular orientation of the membrane vascularization (arrows). Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions
Fig. 3 Representative radiogram (A) and 3-dimensional tomodensitometry reconstruction (B) of a 25-mm-long metatarsal critical size defect of a sheep implanted with fragmented autologous bone, 6 months after cement removal. Microradiography (frame C), and histology (D) of a representative 2-dimensional section were performed at this time point. The stain used for the histology was van Gieson picro-fushine. Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions
Fig. 4 Immunohistochemical staining (B) of a decalcified section (A) of a massive construct seeded with autologous GFP-transduced MSCs 2 months after implantation in a subcutaneous pouch delineated by a PMMA-induced membrane in sheep. Bone formation (white arrow) and osteoblasts expressing eGFP (black arrow) are observed. The stain used for the histology (A) was hematoxylin-eosin-saffron (HES). Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions
Fig. 5 Representative radiogram (A) and 3-dimensional tomodensitometry reconstruction (B), of a 25-mm-long metatarsal critical size defect of a sheep implanted with MSCs/coral constructs, 6 months after cement removal. Microradiography (C), and histology (D) of a representative 2-dimensional section were performed at that time point. The histologic stain used was von Gieson picro-fushine. Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions
Fig. 6 Quantification of bone formation. *P<.05 compared with defects left empty. **P<.05 compared with defect filled with coral alone. Orthopedic Clinics 2010 41, 49-56DOI: (10.1016/j.ocl.2009.07.010) Copyright © 2010 Terms and Conditions