مطالعه اثر پیوند چادرینه آزاد و پیوند چربی سفید بر روی التیام استخوان خرگوش

Osteogenesis, osteoiduction, osteoconduction are three essential elements of bone regeneration along with final biding between host bones and grafting material.in this study, six-month-old male new zealand rabbits with a body mass of about 2.5 kg were used. 15 rabbits randomly divided into three groups. in group i in both hands ulna bone was defected (3*1.5 mm) without any treatment. just some omental and white fat cutted and removed. in group ii ulna bone of right hand was defected (3*1.5 mm) and omentum of animal itself was used for grafting. in group iii ulna bone of left hand was defected and white fat abdominal was used for grafting. movements of animal were evaluated in days 3, 6, 9,12,15,20,25,30,40 of observation. in all three groups first radiography was done just after operation. and also in days 15, 30, 45of experiment. according to data obtained all three type of callus in group ii were vastly generated. osteogenesis procedure in omentum group was higher than other groups.histopathology results in group i showed perriosteal and modularly bridging callus beside bone marrow and fibroses tissues were vastly generated. in group ii osteogenesis in sponge form and blood vascularatin was so much and small amount of fibroses tissues were seen. furthermore perriosteal and modularly bridging callus were noticed. in group iii between fibroses tissue some fat tissue were also visible. along with fibroses tissue osteogenesis was in progress. fibroblasts changed to octeocytes. result obtained from histomorphometry indicates that differences among groups were meaningful (p-value < .05) and osteogenesis procedure in group ii was higher than other groups 72.3±2.02.it seems, in future to speed up osteo repairs omental graft will be more extensively used. because this method gives all desired advantages. furthermore based on the results, to avoid adhesion fat grafting will be rejected.