Virtual planning, simulation and surgical navigation in orbital reconstruction

Ferrer, Alicia Dean; Alamillos, Francisco; Heredero, Susana; Sanjuan, Alba; Estero, M.; Ríos, S.; Zafra, Francisco Javier Ruiz

doi:10.1016/j.ijom.2019.03.829

Cited by 1 publication

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“…Several studies have shown that CASNS can provide good treatment outcomes and reduce second corrective procedure by restoring the volume and globe dimensions of the orbital cavity in complex defects of the orbital wall. 9 , 10 , 11 However, few published clinical studies contained a control group without application of a CASNS, or compared the difference in surgical results.…”

Section: Introductionmentioning

confidence: 99%

A retrospective study to compare the treatment outcomes with and without surgical navigation for fracture of the orbital wall

Zong

Shi

Jia

et al. 2021

Chinese Journal of Traumatology

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Purpose To evaluate the outcomes with and without aid of a computer-assisted surgical navigation system (CASNS) for treatment of unilateral orbital wall fracture (OWF). Methods Patients who came to our hospital for repairing unilateral traumatic OWF from 2014 to 2017 were included in this study. The patients were divided into the navigation group who accepted orbital wall reconstruction aided by CASNS and the conventional group. We evaluated the surgical precision in the navigation group by analyzing the difference between actual postoperative computed tomography data and preoperative virtual surgical plan through color order ratios. We also compared the duration of surgery, enophthalmos correction, restoration of orbital volumes, and improvement of clinical symptoms in both groups systemically. Quantitative data were presented as mean ± SD. Significance was determined by the two-sample t -test using SPSS Version 19.0 A p < 0.05 was considered statistically significant. Results Seventy patients with unilateral OWF were included in the study cohort. The mean difference between preoperative virtual planning and actual reconstruction outcome was (0.869 ± 0.472) mm, which means the reconstruction result could match the navigation planning accurately. The mean duration of surgery in the navigation group was shorter than it is in the control group, but not significantly. Discrepancies between the reconstructed and unaffected orbital-cavity volume and eyeball projection in the navigation group were significantly less than that in the conventional group. One patient had remnant diplopia and two patients had enophthalmos after surgery in the navigation group; two patients had postoperative diplopia and four patients had postoperative enophthalmos in the conventional group. Conclusion Compare with the conventional treatment for OWF, the use of CASNS can provide a significantly better surgical precision, greater improvements in orbital-cavity volume and eyeball projection, and better clinical results, without increasing the duration of surgery.

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Section: Introductionmentioning

confidence: 99%