Bilateral vertical retraction syndrome in horizontal bilateral Duane's syndrome.
In the cases of vertical retraction syndromes previously reported in the literature, the "leash effect" of vertical recti was responsible for a limitation of motility and for retraction in up- or down-gaze. This vertical retraction syndrome mimics Duane's syndrome and benefits from recession of the taut vertical recti. In the case reported, another mechanism had led to vertical retraction syndrome. In a bilateral horizontal Duane's syndrome, the physiological co-contraction of abnormally short horizontal recti in vertical gaze was responsible for vertical retraction syndrome and even for a positive vertical forced duction test. The vertical motility was returned to normal by recession of the four horizontal recti.
Spielmann
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Rue de la Ravinelle, Nancy, France.
D002675:Child, Preschool; D004370:Duane Retraction Syndrome / Q000150:complications* / Q000601:surgery; D005133:Eye Movements; D005260:Female; D006801:Humans; D009135:Muscular Diseases / Q000150:complications / Q000503:physiopathology / Q000601:surgery; D009801:Oculomotor Muscles / Q000503:physiopathology; D009886:Ophthalmoplegia / Q000150:complications*; D011184:Postoperative Period; D013577:Syndrome