Reconstruction of extended orbital floor fracture using an implantation method of gamma-shaped porous polyethylene
Archives of Craniofacial Surgery
;
: 164-169, 2019.
Article
in English
| WPRIM
| ID: wpr-762770
ABSTRACT
BACKGROUND:
The conventional surgical method for reconstructing orbital floor fractures involves restoration of orbital continuity by covering an onlay with a thin material under the periorbital region. However, in large orbital floor fractures, the implant after inserting is often dislocated, leading to malposition. This study aimed to propose a novel implanting method and compare it with existing methods.METHODS:
Among patients who underwent surgery for large orbital floor fractures, 24 who underwent the conventional onlay implanting method were compared with 21 who underwent the novel γ implanting method that two implant sheets were stacked and bent to resemble the shape of the Greek alphabet γ. When inserting a γ-shaped implant, the posterior ledge of the orbital floor was placed between the two sheets and the bottom sheet was impacted onto the posterior wall of the maxilla to play a fixative role while the top sheet was placed above the residual orbital floor to support orbital contents. Wilcoxon signed-rank test and Mann-Whitney U test were used for data analyses.RESULTS:
Compared to the conventional onlay method, the gamma method resulted in better restoration of orbital contents, better improvement of enophthalmos, and fewer revision surgeries.CONCLUSION:
Achieving good surgical outcomes for extended orbital floor fractures is known to be difficult. However, better surgical outcomes could be obtained by using the novel implantation method of impacting a γ-shaped porous polyethylene posteriorly.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Orbit
/
Orbital Fractures
/
Enophthalmos
/
Statistics as Topic
/
Orbital Implants
/
Polyethylene
/
Inlays
/
Maxilla
/
Methods
Limits:
Humans
Language:
English
Journal:
Archives of Craniofacial Surgery
Year:
2019
Type:
Article
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