ABSTRACT
Objective: To evaluate the effects of surgical navigation technique in the reconstruction of traumatic orbital wall defect.Methods: 20 patients underwent the operation with the aid of navigation for repairing traumatic orbital wall defect as the test group. 20 patients were treated without navigation as the control group. Treatment outcome was evaluated by correction of exophthalmos, orbital volumes and patient's self-satisfaction. Results: The mean difference of eyeball protrusion between the reconstructed and the unaffected orbit cavity in the navigation group and control group was (0. 81 ± 0. 35) mm and (1. 65 ± 0. 37) mm (P ＜ 0. 05), that of the orbital volume (0. 68 ± 0. 29) ml and (0. 98 ± 0. 22) ml (P ＜ 0. 05), respectively. The patient's satisfaction value of the navigation group was higher than in the control group (P ＜ 0. 05) . The operation duration in the navigation group was less than in the control group (P ＜0. 05) . Conclusion: Surgical navigation can improve the accuracy and the effects of operation for orbital defect reconstruction.
ABSTRACT
PURPOSE: Globe displacement due to a blowout fracture is a rare clinical phenomenon. The authors present reduction of a globe displacement to the maxillary sinus due to trauma suffered in a fall and the reconstruction of a large defect left in the medial and inferior orbit. METHODS: A 39-year-old male patient was unable to open his left eye after being struck on the periorbital area by a metal edge. Laceration was not noted in that area but we were unable to observe the intraorbital globe. A facial computed tomography (CT) scan showed that the globe was displaced through the maxillary sinus. A transconjunctival approach was used to access the infraorbital margin and the globe entrapped in the inferior margin of the orbit was successfully reduced. A large defect in the medial and inferior orbit was reconstructed using a graft from the iliac bone. RESULTS: In 5 months after the operation, no atrophy of the globe was seen. Both sides retained a similar shape. A satisfactory functionality outcome in terms of improved extraocular muscle movement, and a satisfactory aesthetical outcome were achieved. CONCLUSION: The authors report the reduction of a globe displaced to the maxillary sinus following a fall and the reconstruction of the large defect left in the medial and inferior orbit.