Korean J Ophthalmol.  2009 Dec;23(4):329-331. 10.3341/kjo.2009.23.4.329.

A Case of Pseudo-Duane's Retraction Syndrome With Old Medial Orbital Wall Fracture

• Lee SH
• Lee JH
• Lee SY
• Kim SY

• KMID: 754776
• DOI: http://doi.org/10.3341/kjo.2009.23.4.329

Abstract

We report a case of pseudo-Duane's retraction syndrome with entrapment of the medial rectus muscle in an old medial orbital wall fracture presenting identical clinical symptoms as Duane's retraction syndrome. A 15-year-old boy presented with persistent limited right eye movement since a young age. Examination showed marked limited abduction, mildly limited adduction, and globe retraction accompanied by narrowing of the palpebral fissure during attempted adduction in the right eye. He showed a right esotropia of 16 prism diopters and his head turned slightly to the right. A slight enophthalmos was noted in his right eye. A computed tomography scan demonstrated entrapment of the medial rectus muscle and surrounding tissues in an old medial orbital wall fracture. A forced duction test revealed a marked restriction of abduction in the right eye. A 5 mm recession of the right medial rectus muscle was performed. Postoperatively, the patient's head turn and esotropia in the primary position were successfully corrected, but there was still some limitations to his ocular movement. The importance of several tests such as the forced duction test and an imaging study should be emphasized in making a diagnosis for limitation of eye movement.

Keyword

Duane's retraction syndrome; Medial orbital wall fracture; Pseudo-Duane's retraction syndrome

MeSH Terms

Adolescent
Diagnosis, Differential
Duane Retraction Syndrome/*diagnosis/etiology/physiopathology
Eye Movements/*physiology
Follow-Up Studies
Humans
Male
Oculomotor Muscles/*physiopathology/surgery
Ophthalmologic Surgical Procedures/methods
Orbital Fractures/*complications/diagnosis
Tomography, X-Ray Computed

Figure

• 

  Fig. 1 Preoperative photographs show markedly limited abduction, mildly limited adduction, and narrowing of the palpebral fissure on adduction of the right eye.

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  Fig. 2 Side view of the right eye shows. (A) A slight enophthalmos in the primary position. (B) Globe retraction upon attempted adduction.

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  Fig. 3 Preoperative orbital CT scan shows an old fracture of the right medial orbital wall with entrapment of the right medical rectus muscle. (A) Axial view. (B) Corneal view.

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