Residual diplopia after repair of pure orbital blowout fracture: The importance of extraocular muscle injury
Methods: Sixty-three patients with pure orbital BOFs who had preoperative symptomatic diplopia were investigated. In each patient, the relationship of residual diplopia and the following factors were analyzed: (1) timing of surgery, (2) presence of enophthalmos, (3) site of fracture, (4) type of fracture, (5) extraocular muscle swelling, and (6) surgical method.
Results: Fifty-five (87.3%) of 63 patients experienced improvement in diplopia and 8 (12.7%) patients had residual symptomatic diplopia after surgery. Of the six factors, only swelling of extraocular muscle on computed tomography (CT) scan was significant for the development of residual diplopia after surgery (p < 0.01).
Conclusion: In pure BOF of the orbit, patients who have swelling of the extraocular muscles on CT scan are more likely to have residual postoperative diplopia.
Document Type: Research Article
Affiliations: 1: From the Department of Otorhinolaryngology–Head and Neck Surgery, Seoul National University Boramae Hospital, Seoul, Korea, and 2: Department of Otolaryngology, College of Medicine, Chungbuk National University Hospital, Cheongju, Korea
Publication date: 2007-05-01