Endonasal endoscopic reduction of blowout fractures of the medial orbital wall

Purpose: This article describes the endonasal endoscopic reduction (EER) of blowout fractures (BOFs) of the medial orbital walls and reports the clini cal results. Patients and Methods: Sixteen patients who underwent EER for a BOF of the m edial orbital wall were analyzed. The surgical indications for treatment we re diplopia, limitation of eye movements, and significant enophthalmos. The y were followed-up for at least 3 months after the surgery. Surgical techni ques, surgical results, and postoperative complications were reviewed. Results: There were no significant intraoperative or postoperative complica tions. Fourteen patients showed complete resolution of symptoms after the s urgery. One patient, who had persistent diplopia and remaining enophthalmos , underwent medial wall reconstruction with a Medpor surgical implant (Pore x Surgical Inc, College Park, GA) by a transorbital approach. Another patie nt, who had residual enophthalmos, had correction of enophthalmos after ins ertion of a Medpor implant. Both patients are now symptom-free. Conclusion: The results indicate that EER is a safe and effective technique for the treatment of BOFs of the medial orbital wall. (C) 2000 American As sociation of Oral and Maxillofacial Surgeons.