title: Isolated inferior rectus muscle rupture after blunt orbital trauma.
abstract: A 44-year-old man was referred to our department with diplopia, periorbital swelling and haematoma of the left eye after orbital trauma due to a punch. During the examination, mild enophthalmos, hypertropia and a total absence of infraduction were observed. An orbital computed tomography (CT) scan demonstrated a left orbital floor blow-out fracture, with caudal herniation of periorbital fat and rectus inferior muscle. Repair was performed under total anaesthesia with placement of a Titan mesh. The following days were marked by the persistence of diplopia without improvement of infraduction. A postoperative, 0.5 mm CT scan highlighted a complete rupture of the inferior rectus muscle, not seen before operation, by a 1.0 mm-sliced CT. In this case, orthoptic therapy was undertaken with good results after 6 months and without need of a second repair.
authors: Department of Cranio-Maxillofacial and Oral Surgery, University Hospital Zurich, Zurich, Switzerland patrick.tomasetti@usz.ch.
authors: Patrick
authors: P
authors: Tomasetti
authors: Department of Cranio-Maxillofacial and Oral Surgery, University Hospital Zurich, Zurich, Switzerland.
authors: Philipp
authors: P
authors: Metzler
authors: Department of Cranio-Maxillofacial and Oral Surgery, University Hospital Zurich, Zurich, Switzerland.
authors: Christine
authors: C
authors: Jacobsen