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The influence of tissue herniation on diplopia and ocular motility in orbital blowout fractures
Author(s) -
Alhamdani F.,
Durham J.,
Greenwood M.,
Corbett I.
Publication year - 2015
Publication title -
oral surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.156
H-Index - 11
eISSN - 1752-248X
pISSN - 1752-2471
DOI - 10.1111/ors.12148
Subject(s) - medicine , diplopia , surgery , significant difference
Aim The aim of the study is to determine the effect of orbital tissue herniation, as determined by computed tomography ( CT ) scan, on diplopia and ocular motility scores in blowout fracture patients. Materials and methods Patients who sustained pure orbital blowout fractures in the period 2000–2010, and for whom CT scan reports were available, were included in the study. Three levels of tissue herniation were reported: none, fat only, and fat and muscle. Orthoptic assessment included binocular single vision ( BSV ) and uniocular fields of fixation ( UFOF ) scores. Results One hundred and twenty‐three patients were included in the study. Although mean BSV and UFOF scores decreased with increasing amounts of tissue prolapse, there was no significant difference between the BSV , UFOF scores of injuries with no tissue prolapse and those with only fat herniation ( P > 0.05). A significant difference was noted between the BSV and UFOF scores of no/fat herniation and injuries with fat and muscle prolapse groups. Patients with muscle herniation had a tendency for an unfavourable outcome following surgical intervention. Conclusion We suggest that orbital fat herniation alone may not be an adequate indication for surgical intervention for correction of diplopia in orbital blowout fractures. Cases with orbital muscle herniation are more likely to have an unfavourable outcome in relation to diplopia.