Inlay implanting technique for the correction of medial orbital wall fracture.

BACKGROUND

For blowout fractures of the medial orbital wall, the goals of treatment are complete reduction of the herniated soft tissue and anatomical restoration of the orbital wall without surgical complications. Surgeons frequently worry about damage to the optic nerve caused by dissection when the part over the posterior ethmoidal foramen is fractured. The authors performed small incision and inlay implantation of porous polyethylene for reconstruction of medial orbital wall fractures.

METHODS

Between January of 2007 and December of 2009, 55 patients were included in an analysis of the outcome of corrected medial orbital wall fractures. For 55 patients with posterior comminuted fractures of the medial orbital wall, insertion of porous polyethylene into the ethmoid sinus was performed in multiple layers, through the transconjunctival approach.

RESULTS

In all cases, the orbital cavity was restored to its normal anatomical shape. The associated ocular problems disappeared except for mild enophthalmos in three patients and diplopia in one patient. There were no serious surgical complications associated with inlay implantation.

CONCLUSIONS

The advantages of the inlay technique include the anatomical reconstruction of the orbital wall, the avoidance of optic nerve injury, the simplicity of the procedure, and consequently the absence of surgery-related complications. This technique is presented as one of the preferred treatments for posterior comminuted fractures of the medial orbital wall.