Finite element analysis of the human orbit. behavior of titanium mesh for orbital floor reconstruction in case of trauma recurrence (original) (raw)
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Orbital Floor Reconstruction with Titanium Mesh
The Professional Medical Journal
Objective: To determine the outcome of orbital floor reconstruction with titaniummesh in terms of diplopia, enophthalmos, dystopia and infection etc. Study design: Descriptivecase series. Place & duration of study: Department of Oral & Maxillofacial Surgery, PunjabMedical College / Allied Hospital Faisalabad. One and Half year from 01-10-12 to 31-03-14.Material and Method: Twenty two patients clinically and radiographically having defect in theorbital floor due to trauma were included in the study. Titanium mesh was used to reconstruct theorbital floor through infraorbital rim incision and secured in place with 5mm micro screws. Thevariables to be analyzed were diplopia, enophthalmos, orbital dystopia and infection. Results: Inour study male gender predominates over female 20/22. Mean age of patients is 29.36 years ±5.21. Diplopia persisted in 2/10 (20%) patients. Enophthalmos persisted in 7/18 (38.8%) patients.dystopia persisted in ¼ (25%) patients. Infection didn’t develop in any ...
Individual preformed titanium meshes for orbital fractures
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2006
Objectives. The aim of this investigation was to develop and test the accuracy of a procedure for fabricating individual preformed titanium meshes for orbital fractures. Study design. Preoperative CT datasets from five patients with orbital fractures were used for 3D reconstruction by mirroring the unaffected side onto the defective one, resulting in a new sub-volume. A template for adaptation of the titanium mesh was produced by applying these sub-volumes. Navigation-aided procedures guaranteed the exact placement of the preformed mesh during the operation. Results. The accuracy of the reconstructed orbital floor was determined to be approximately 1 mm, which lies within the technical limit of detection.
Volumetric evaluation of orbital fractures treated by titanium mesh
Research Square (Research Square), 2022
Purpose: Orbital fractures are high prevalent and result in volumetric changes which may result in clinical impairment as enophthalmos and diplopia. This study aims to evaluate orbital volume and anteroposterior eyeball position in orbital fractures treated by titanium mesh. Methods: This multicenter study evaluated 60 postoperative CT scans of unilateral orbital fractures treated using titanium mesh. Orbital defects were classi ed according to the extension and involved regions, and the orbital volumes were analyzed by two methods, image sectioning (IS) and computerized segmentation (CS). The eyeball position was obtained from the axial slice in the mid orbit region. Differences up to 8.0% (volume) and 2.0 mm (eyeball position) were considered normal. Results: Most of defects were class II (n=25) and class III (n=26). Volumetric differences between unaffected and reconstructed orbit ranged from-7.15% to 10.46% (mean:-0.15%), and from-6.32% to 9.69% (mean:-0.01%) in IS and CS method, respectively. In both methods, two reconstructions were greater than anatomical differences, however there was no statistical differences between the orbits in both methods, IS (p=0.852) and CS (p=0.987). Anteroposterior eyeball position ranged from-0.9 mm to 1.8 mm. The correlation between defect classi cation, eyeball position and IS or CS, were not positive. Conclusion: In conclusion, regardless of the extent of the orbital defect or evaluation method, fractures treated by titanium mesh reestablished adequately the orbital volume.
Orbital Wall Reconstruction with Titanium Mesh: Retrospective Study of 24 Patients
2011
The aim of this study was to evaluate the efficacy and safety of traumatic orbital defect reconstruction with titanium mesh. A retrospective study was made. Evaluations were made after a minimum postoperative follow-up of 12 months, looking for the main complications. Twenty-four patients were included in this evaluation; 19 were male (79.1%) and 5 (20.8%) were female. The main injury etiology was vehicle accidents (50%) followed by other causes. Fourteen patients (58.3%) presented orbital floor fractures, and 10 had more than one wall fractured (41.6%). Permanent infraorbital nerve hypoesthesia was observed in two patients (8.3%), enophthalmos occurred in five patients (20.8%), and exophthalmos was found in two patients (8.3%). Four patients (16.6%) still presented evidence of residual prolapsed intraorbital content, and one of those needed further surgical correction; sinusitis occurred in one patient (4.1%). Titanium mesh is a reliable option for orbital reconstruction, despite some complications found in this sample.
Egyptian Journal of Oral and Maxillofacial Surgery, 2018
Aim: Is to evaluate the accuracy of orbital volume correction using pre-adapted titanium mesh with the aid of stl model of corrected orbit. Patients and methods: Ten patients with unilateral orbital floor fracture were included. The cases were divided into two equal groups. Manual group where titanium mesh was manually adapted intra-operatively. STL group where titanium mesh was adapted pre-operatively using stl model of corrected orbit. Orbital volume measurements based on CT images were used to trace the degree of correction in each group. Paired samples t test was used for statistical analysis. Results: There was statistical significant difference in the correction of orbital volume in each group. However, comparison between the two groups revealed no statistical significant difference in the percentage of correction, where the mean percentage of correction in stl group was (102.8 ± 4.4) versus (98.4± 2.6) in the manual group. Conclusion: Application of pre-adapted titanium mesh by the aid of stl model provide successful tool for correction of orbital volume secondary to orbital floor fracture with less operative time and effort especially in comminuted fractures.
Introduction: The goal of an orbital floor implant is basically to renovate the traumatic defect, lifting the globe into its right position and thereby avoiding enophthalmos. Finding the ideal material for orbital floor reconstruction is not an easy job. Countless implants are available today on the market to treat orbital floor fractures. Aim of the Work: The aim of this study is to compare the results of using autologous bone grafts with those of using titanium mesh in reconstruction of large post traumatic orbital floor defects. Patients and Methods: A randomized controlled comparative study was conducted at the Plastic and Maxillofacial Department at Cairo University Hospitals including 30 patients having orbital floor fractures associated with orbital floor defects either isolated or with other maxillofacial fractures, coming to the outpatient and emergency services of the department from June 2012 to December 2013. Patients were subdivided into two groups, 15 cases were manage...