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Endobon® es una cerámica de hidroxiapatita perfectamente apropiada para la sustitución ósea. Es de origen biológico (hueso esponjoso bovino). Se utiliza hueso esponjoso bovino porque este material tiene un sistema de macroporos interconectados cuya estructura es muy similar a la
Características
· Materia prima: articulaciones de hueso bovino
· Tratamiento a altas temperaturas en dos pasos:
- PIRÓLISIS >900º C Eliminación de los componentes orgánicos
- CERAMIZACIÓN >1200º C Creación de la estructura cristalina
· Desproteinización completa: Ausencia de reacciones inmunológicas (biocompatible)
· Destrucción de bacterias, virus y priones
· Endobon® no es reabsorbible
· Endobon® aparece
· Disponibilidad de varias presentaciones: bloques, cilindrosy gránulos
Bibliografía:
1)Eggli, P.s.; Müller, W.; Schenk, R.K.: Porous hydroxyapatite and tricalcium phosphate cylinders with two different pore size ranges implanted in the cancellous bone of rabbits. Clinical Orthopaedic and Related Research, 1988, Vol.232, 127-138.
(2)Klein, C.P.A.T.; Patka, P.; den Hollander, W.: Macroporous calcium phosphate bioceramics in dog femora: a histological study of interface and biodegradation. Biomaterials, 1989, Vol.10, 59-62.
(3)Meiss, L.; delling, G.: Stimulation of bone regeneration by fragmental cortical bone and porous calcium phosphate ceramics (tricalcium phosphate and hydroxyapatite) - An experimental study and preliminary clinical results.
(4)Helber M U, Ulrich Chr. Filling of metaphysical bone defects with hydroxylapatit-Endobon. In: Buchhorn G, Willert HG, editors. Ceramic Implant Materials in Orthopaedic Surgery. Proceedings of the 6th Biomaterial Symposium; 1994 Sept 21-23; Göttingen (
(5)Hing K A, Best S M, Tanner K E, Bonfield W, Revell P A. Biomechanical Assessment of bone ingrowth in porous hydroxyapatite. Journal of Materials Science: Materials in Medicine 1997;8:731-736. Merck KgaA ZPD-Nr. 55 879-255
(6)Specht R, Tröster S, Liebendörfer A, Dard M. Physico-Chemical and Pharmaceutical Requirements for a Bioceramic. In: Buchhorn G, Willert H G, editors. Ceramic Implant Materials in Orthopaedic Surgery. Proceedings of the 6th Biomaterial Symposium, 1994 Sept 21-23; Göttingen (
(7)Hing K A, Kayser M, Best S M, Lee D A, Bonfield W. Response of prymary human osteoblast-like cells to macroporous hydroxyapatite. Abstractband 3rd Meeting and Seminar on Ceramics, Cell and Tissues - Bioceramic coatings for guided bone growth.1996 May 5-8; Eds.Ravaglioli A, Krajewski A; 57-64. Merck KgaA ZPD-Nr.55 879-253
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