{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T13:54:44Z","timestamp":1788875684642,"version":"build-2803163510"},"reference-count":18,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Br J Ophthalmol"],"published-print":{"date-parts":[[2018,3]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To investigate the surgical timing postinjury in regard to ocular motility in patients with orbital-floor blowout fractures.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This study involved 197 eyes (92 right eyes and 105 left eyes) of 197 patients (154 males and 43 females, mean age: 29.0 years, range: 7\u201385 years) with pure orbital blowout fractures. All patients underwent surgical repair within 30\u2009days postinjury and were followed up for 3\u2009months or more postoperative (mean follow-up period: 8.4 months, range: 3\u201359 months). Orbital blowout fractures were classified into one of three shapes: (1) trap-door fracture with muscle entrapment, (2) trap-door fracture with incarcerated tissue and (3) depressed fragment fracture. Ocular motility was estimated by percentage of Hess area ratio (HAR%) on the Hess chart at the final follow-up examination. In addition, correlations between postinjury surgical timing and HAR% were analysed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The mean postinjury surgical timing was 10.7\u00b17.8 days (range: 0\u201330 days). The mean postoperative HAR% (92.9%\u00b110.5%) was significantly improved compared with preoperative HAR% (73.5%\u00b121.7%) (p&lt;0.01). The mean postoperative HAR% (98.3%\u00b14.4%) of the orbital-floor trap-door fracture patients with incarcerated tissue who underwent surgical repair within 8\u2009days postinjury was significantly better than that of the patients who underwent surgical repair after 8 days (94.2%\u00b15.8%) (p&lt;0.01).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Patients with orbital-floor trap-door blowout fractures with incarcerated tissue that were repaired within 8\u2009days postinjury had better outcomes than those repaired after 8 days, and HAR% is a useful method to record orbital fracture surgical outcomes.<\/jats:p>\n                  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