CLINICAL EVALUATION OF USING CORTICAL LAMINA XENOGRAFT IN RECONSTRUCTION OF ORBITAL FLOOR

Background: The orbital floor is one of the most frequently injured areas during facial trauma. Their proper treatment is crucial for prevention of orbital complications as diplopia, limitation of ocular motility and enophthalmos. Cortical lamina is a collagenated cortical bone of heterologous origin that is used in grafting of non-load-bearing areas. Objective: To evaluate clinically the use of cortical lamina in the reconstruction of orbital floor defects. Materials and Methods: Ten patients with orbital floor defects less than 2cm were associated with one or more of the following complications; binocular diplopia, enophthalmos, limitation of ocular motility or infra orbital nerve dysfunction, were indicated for orbital reconstruction using cortical lamina xenograft. The follow-up schedule was 1week and 1, 3, 6 months postoperatively. Results: Orbital complications had been resolved in all patients. Only infra orbital nerve dysfunction continued in 7 patients where 3 of patients recovered after 3 months and the other 4 have recovered after 6 months. Conclusions: Cortical lamina xenograft is a good alternative for the reconstruction of orbital floor defects less than 2cm due to its plasticity and biocompatibility without any donor site morbidity.