PubMed ID: 39037372
Author(s): Arcot Sadagopan K, Raghunandan N, Saswade NS, Kushner BJ. Lateral Rectus Disabling and Simultaneous Modified Nishida Procedure for Exotropic Duane Retraction Syndrome. J Binocul Vis Ocul Motil. 2024 Jul 22:1-6. doi: 10.1080/2576117X.2024.2375666. Online ahead of print. PMID 39037372
Journal: Journal Of Binocular Vision And Ocular Motility, Jul 2024
Exotropic-Duane Syndrome (XT-DRS) is a congenital cranial nerve dysinnervation disorder characterized by exotropia, anomalous head posture (contralateral face turn), limited adduction, globe retraction, palpebral fissure narrowing, upshoot and downshoot in adduction, and varying levels of limitation of abduction. Patients with XT-DRS often have poor convergence because attempted convergence induces co-contraction of the lateral rectus muscle (LR) due to anomalous LR innervation. We describe two patients with XT-DRS who underwent simultaneous lateral rectus muscle (LR) disinsertion and periosteal fixation (LRDAPF) and modified Nishida procedure (MNP) and discuss their outcome. In one patient, we combined this procedure with a contralateral LR recession. Anomalous head posture, exotropia, globe retraction, and palpebral fissure narrowing were reduced. Upshoot and downshoot were also reduced. Convergence improved in both patients.