The Clinical Results of the 3D Spiral Computerized Tomography Directed Surgical Treatment for Orbital Blow-out Fracture

Objective To explore the importantce and guiding effect of CT three-dimensionsl in surgical treatment for orbital blow-out fracture.Methods According to two-dimensionsl and three-dimensionsl imaging,MEDPOR orbital implants and HA as orbital grafting material were used.reconstruction of the orbit and reposition of the globe perforned on 42 patients with orbital blow-out fracture.Postoperatively,they were follow up for average of 3 months.Results two-dimensionsl imaging is very clear in showing soft tissue herniation and soft tissue entrapment.MPR and 3D-CT is clear in showing the stereo conformation of orbit.In the 42 cases with enophthalmos of orbital blow-out fracture,three months after operation,the measurements demonstrated that 35 patients had no enophthalmos,5 cases had mild enophthalmos(1-2 mm).37 of 39 patients had diplopia preoperatively.32 patients had satisfactory resul.Conclusion CT two-dimensions and three-dimensionsl reconstruction provide satisfactory understanding of the orbital fracture,its permits a more specific preoperative analysis and surgical planning.and they are the ideal guides during the operation.