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Ossiculoplasty: Experimental studies of cortical bone grafts for replacement of the incus in cats

CORTICAL bone grafts have been used (Guilford, 1966; Farrior, 1969; Zollner, 1969) to maintain the continuity of the ossicular chain during reconstructive middle ear surgery. The purpose of this paper is to report our findings with the replacement of the incus by a piece of cortical bone (autograft) in cats. Our experimental work is divided into two studies: (a) Histopathological findings by routine histological techniques, using one ear as experimental and one ear as control in each animal, (b) Viability of the grafts by tetracycline labels and fluorescent microscopy, using specimens with-out decalcification.