Abstract
Purpose
The study reports the correlation between surgical timing and postoperative ocular motility in orbital blowout fractures.
Methods
This was a retrospective study of 191 patients that underwent surgical repair for unilateral orbital fractures. All patients included in the study had symptomatic diplopia from the fracture. Patients were classified into one of three groups according to the time of surgery after injury: (1) Early (within 14 days of surgery), (2) intermediate (between 15 and 30 days), and (3) late (greater than 30 days). Ocular motility was measured presurgery and at 3 and 6 months postsurgery by Hess chart with calculation of the Hess area ratio (HAR%).
Results
Surgery was conducted at a mean of 24.7 ± 45.0 days (range: 1–283 days) postinjury. There were 120 patients in the early surgery group (surgery at 6.8 ± 3.8 days), 38 in the intermediate surgery group (20.7 ± 4.1 days), and 33 in the late surgery group (95.1 ± 75.0 days). Overall the HAR% improved significantly from a mean of 74.2% preoperatively to 90.8% at 6 months postoperatively (p < 0.01). In the early and intermediate groups, the postoperative HAR% improved significantly with all fracture regions (orbital floor, medial wall, and combined orbital medial wall and floor) (p < 0.05). However, in the late groups, the postoperative HAR% only improved significantly with orbital floor fractures.
Conclusion
Pre- and postoperative the HAR% give objective evidence of ocular motility improvement with early orbital floor fracture repair surgery. However, observation can be deployed, as a significant improvement in ocular motility can also be achieved with reconstructive surgery conducted 30 days or more after depressed floor-fragment fractures. Early intervention should be prioritized for symptomatic medial wall fractures, as late surgery does not improve motility.
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Yamanaka, Y., Watanabe, A., Rajak, S.N. et al. Correlation between surgical timing and postoperative ocular motility in orbital blowout fractures. Graefes Arch Clin Exp Ophthalmol 260, 319–325 (2022). https://doi.org/10.1007/s00417-021-05327-5
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DOI: https://doi.org/10.1007/s00417-021-05327-5