Different outcomes in two cases manifesting restricted infraduction following surgery for of orbital floor fracture

We treated two cases of orbital floor fracture by inserting a silicone plate. A 16-year-old boy was injured during boxing. He had nausea and diplopia immediatefly after injury. During surgery 3 days later, the fracture was found to be of trapdoor type. Orbital tissue was entrapped in the fractured site. Resection of ipsilateral inferior rectus muscle had to be performed 12 months later for residual restriction of infraduction. The inferior rectus muscle appeared to be paralyzed due to entrapping in the fractured site. Another 19-year-old boy was hit by a timber on his right eye. Surgery was performed 12 days later for diplopia. The orbital floor fracture was found to be of punched-out type. Postoperative restriction of infraduction disappeared 3 months later. These cases illustrate that the outcome of surgery for orbital floor fracture may be variable dependent on the type of fracture.