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Abstract:
The lesions in 3 turkeys with articular cartilage flap formation and associated osteoarthrosis are described. Since cartilage flap formation was accompanied by a disturbance in endochondral ossification, the diagnosis of osteochondrosis dissecans could be made. The site of lesions in 2 of the cases demonstrated that an adjacent ossific nucleus is not a necessary prerequisite for animal osteochondrosis dissecans. In addition, the site of the lesion in these 2 cases support the suggestion that the junctions of contact and non-contact areas of an articular surface are predisposed to pathological change.