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Precision of posttraumatic primary orbital reconstruction using individually bent titanium mesh with and without navigation: a retrospective study.

Essig H, Dressel L, Rana M, Rana M, Kokemueller H, Ruecker M, Gellrich NC - Head Face Med (2013)

Bottom Line: Orbital volume of the unaffected side ranged from 26.6 ml±2.8 ml in male and 25.2 ml±2.6 ml in female (CT).Significant orbital enlargement was found in orbital fractures with involvement of the posterior third of the orbital floor and in comminuted fracture pattern.Reconstructed orbital volume ranged from 26.9±2.7 ml in male and 24.26±2.5 ml in female (CBCT). 3D Analysis of the color mapping showed minor deviations compared to the mirrored unaffected side.

View Article: PubMed Central - HTML - PubMed

ABSTRACT

Background: The aim of orbital wall reconstruction is to reestablish anatomically exact orbital volumes to avoid long-term complications. Navigation could facilitate complex reconstructions.

Methods: Quality of the orbital reconstruction (n=94) was measured based on (A) volume changes and (B) on 3D shape deviations compared to the unaffected side. Volume analysis included segmentation of the orbital cavity in the pre- and post-operative 3D data set (VoXim®, IVS Solutions, Germany), and shape analysis was performed by vector-based 3D tools (Comparison®, 3Dshape, Germany).

Results: Orbital volume of the unaffected side ranged from 26.6 ml±2.8 ml in male and 25.2 ml±2.6 ml in female (CT). Significant orbital enlargement was found in orbital fractures with involvement of the posterior third of the orbital floor and in comminuted fracture pattern. Reconstructed orbital volume ranged from 26.9±2.7 ml in male and 24.26±2.5 ml in female (CBCT). 3D Analysis of the color mapping showed minor deviations compared to the mirrored unaffected side.

Conclusion: Measurements demonstrate that even in comminuted orbital fractures true-to-original reconstruction is feasible.

No MeSH data available.


Related in: MedlinePlus

Comparison imaging modality (CT versus CBCT).
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Figure 5: Comparison imaging modality (CT versus CBCT).

Mentions: Volume of the unaffected orbit ranged from 26.6 ± 2.8 ml in male to 25.2 ± 2.6 ml in female (CT data set) (Figure 4). The post-operative imaging (CBCT) of the unaffected orbit was also measured and showed an orbital volume range from 27.4 ± 2.6 ml in male to 25.8 ± 2.6 ml in female (Figure 5). There is no statistical significance between CT and CBCT measurements and therefore comparison between pre- and post-operative data could be done. Volume of the affected orbit is measurably enlarged only in complex fracture pattern like in orbital floor fractures with involvement of the medial orbital wall (maximal 1.9 ml in male and 3.1 ml in female) or in orbital wall fractures including the posterior ledge (up to 3.4 ml in male and 3.2 ml in female) (Figure 6). The reconstructed orbital volume ranged from 26.9 ± 2.7 ml in male and 24.26 ± 2.5 ml in female (CBCT). If these results are broken down into the different groups, significant reduction could be achieved in complex orbital wall fractures (group Navi; 27.7 ± 3.4 ml to 25.7 ± 3.0 ml, p < 0.05) and non significant reduction in Group conv (25.6 ± 3.3 ml to 25.3 ± 3.3 ml).


Precision of posttraumatic primary orbital reconstruction using individually bent titanium mesh with and without navigation: a retrospective study.

Essig H, Dressel L, Rana M, Rana M, Kokemueller H, Ruecker M, Gellrich NC - Head Face Med (2013)

Comparison imaging modality (CT versus CBCT).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3750456&req=5

Figure 5: Comparison imaging modality (CT versus CBCT).
Mentions: Volume of the unaffected orbit ranged from 26.6 ± 2.8 ml in male to 25.2 ± 2.6 ml in female (CT data set) (Figure 4). The post-operative imaging (CBCT) of the unaffected orbit was also measured and showed an orbital volume range from 27.4 ± 2.6 ml in male to 25.8 ± 2.6 ml in female (Figure 5). There is no statistical significance between CT and CBCT measurements and therefore comparison between pre- and post-operative data could be done. Volume of the affected orbit is measurably enlarged only in complex fracture pattern like in orbital floor fractures with involvement of the medial orbital wall (maximal 1.9 ml in male and 3.1 ml in female) or in orbital wall fractures including the posterior ledge (up to 3.4 ml in male and 3.2 ml in female) (Figure 6). The reconstructed orbital volume ranged from 26.9 ± 2.7 ml in male and 24.26 ± 2.5 ml in female (CBCT). If these results are broken down into the different groups, significant reduction could be achieved in complex orbital wall fractures (group Navi; 27.7 ± 3.4 ml to 25.7 ± 3.0 ml, p < 0.05) and non significant reduction in Group conv (25.6 ± 3.3 ml to 25.3 ± 3.3 ml).

Bottom Line: Orbital volume of the unaffected side ranged from 26.6 ml±2.8 ml in male and 25.2 ml±2.6 ml in female (CT).Significant orbital enlargement was found in orbital fractures with involvement of the posterior third of the orbital floor and in comminuted fracture pattern.Reconstructed orbital volume ranged from 26.9±2.7 ml in male and 24.26±2.5 ml in female (CBCT). 3D Analysis of the color mapping showed minor deviations compared to the mirrored unaffected side.

View Article: PubMed Central - HTML - PubMed

ABSTRACT

Background: The aim of orbital wall reconstruction is to reestablish anatomically exact orbital volumes to avoid long-term complications. Navigation could facilitate complex reconstructions.

Methods: Quality of the orbital reconstruction (n=94) was measured based on (A) volume changes and (B) on 3D shape deviations compared to the unaffected side. Volume analysis included segmentation of the orbital cavity in the pre- and post-operative 3D data set (VoXim®, IVS Solutions, Germany), and shape analysis was performed by vector-based 3D tools (Comparison®, 3Dshape, Germany).

Results: Orbital volume of the unaffected side ranged from 26.6 ml±2.8 ml in male and 25.2 ml±2.6 ml in female (CT). Significant orbital enlargement was found in orbital fractures with involvement of the posterior third of the orbital floor and in comminuted fracture pattern. Reconstructed orbital volume ranged from 26.9±2.7 ml in male and 24.26±2.5 ml in female (CBCT). 3D Analysis of the color mapping showed minor deviations compared to the mirrored unaffected side.

Conclusion: Measurements demonstrate that even in comminuted orbital fractures true-to-original reconstruction is feasible.

No MeSH data available.


Related in: MedlinePlus