Rates of Reoperation in Duane Retraction Syndrome.

Area of Science:

• Ophthalmology
• Strabismus Surgery
• Pediatric Ophthalmology

Background:

• Duane retraction syndrome (DRS) is a congenital eye movement disorder.
• Surgical intervention is common for managing strabismus associated with DRS.
• Understanding reoperation rates is crucial for optimizing surgical outcomes.

Purpose of the Study:

• To analyze the types of strabismus surgeries performed in patients with Duane retraction syndrome.
• To determine the reoperation rates associated with different surgical approaches for DRS.

Main Methods:

• Retrospective cohort analysis of insurance claims data from 2007-2021.
• Identification of patients diagnosed with DRS and subsequent strabismus surgeries.
• Cox regression analysis to estimate reoperation risk based on surgical techniques.

Main Results:

• 10.8% of 9435 DRS patients underwent strabismus surgery, with a median age of 5.0 years.
• Horizontal muscle surgery was most frequent (71.7%), but vertical muscle surgery (with or without transposition) showed increased reoperation risks.
• The 5-year reoperation rate was 18.2%, with vertical muscle surgery (HR 2.01) and vertical with transposition (HR 1.79) significantly associated with higher reoperation rates.

Conclusions:

• Horizontal muscle surgery is the predominant approach for DRS, but vertical muscle procedures are linked to higher reoperation rates.
• Approximately 1 in 7 DRS patients undergoing surgery may require reoperation.
• Surgical planning for DRS should consider the increased reoperation risk associated with vertical muscle involvement.