Overview
Duane-radial ray syndrome is a rare genetic disorder characterized by the association of Duane anomaly, typically affecting eye movement, with radial ray defects such as thumb and forearm anomalies 12.Diagnosis
Clinical Presentation: Presence of Duane anomaly (congenital retraction syndrome of the eye) and radial ray deficiencies (e.g., thumb aplasia, radial dysplasia) 12.
Imaging: Radiographic imaging to assess radial ray defects and skeletal anomalies 1.
Ophthalmic Evaluation: Detailed ophthalmologic examination to confirm Duane anomaly, including motility patterns and strabismus 2.Management
Orthopedic Interventions: Surgical correction for radial ray deficiencies and associated limb deformities 1.
Ophthalmologic Support: Vision therapy and surgical interventions for Duane anomaly as needed, such as strabismus surgery 2.
Supportive Care: Multidisciplinary approach including physical therapy to optimize limb function 1.Special Populations
Pregnancy: Advanced maternal age (≥35 years) and multiple pregnancy may increase risk of syndromic radial ray deficiencies; avoid valproic acid exposure 1.
Pediatrics: Early intervention for both ocular and limb anomalies is crucial for optimal outcomes 12.Key Recommendations
Conduct detailed ophthalmologic and radiographic evaluations to diagnose Duane anomaly and radial ray deficiencies, respectively (Evidence: Moderate 12).
Consider advanced maternal age and multiple pregnancy as risk factors for syndromic radial ray deficiencies; avoid valproic acid use during pregnancy (Evidence: Moderate 1).
Implement a multidisciplinary management plan including orthopedic and ophthalmologic interventions tailored to individual patient needs (Evidence: Expert opinion).References
1 Syvänen J, Raitio A, Helenius I, Löyttyniemi E, Lahesmaa-Korpinen AM, Gissler M et al.. Prevalence and risk factors of radial ray deficiencies: A population-based case-control study. American journal of medical genetics. Part A 2021. link
2 Raimondo D, Daniele O, Riccobono AM, Camarda RM. Unilateral Duane retraction syndrome. Report of a case. Italian journal of neurological sciences 1986. link