Traumatic rupture of the inferior rectus muscle: clinical presentation and surgical management
Traumatic inferior rectus (IR) muscle rupture can occur following orbital trauma or intraoperatively during strabismus surgery. Isolated case reports have been published in the literature.1–7 In traumatic injuries of the extraocular muscles, the inferior and medial rectus muscles are most commonly involved, which is thought to be due to the closer proximity of their insertions to the corneoscleral limbus.2 They are also anatomically more exposed during protective reflexes such as blinking and Bell’s phenomenon, making them more susceptible to trauma.
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