Nonsurgical Treatment for Congenital Auricular Deformities: A Systematic Review and Meta-analysis

Abstract

Background: The effectiveness and safety of non-surgical correction for congenital auricular deformities (CADs) remain unclear owing to a lack of high-level evidence. This systematic review and meta-analysis aimed to estimate the overall success and complication rates of the non-surgical correction for CAD.

Methods: We searched PubMed, Medline, and Cochrane Library for eligible studies. The pooled success and complication rates of non-surgical correction were estimated using a random effects model. Subgroup analyses were performed to compare the success rates between patients treated with splints and molding systems, between those younger and older than 6-weeks, and among those with different types of CADs.

Results: The review yielded 14 studies. The pooled success rate of non-surgical treatment was 93% (95% CI: 88%-97%). The success rates with splints and commercialized molding systems were 94% and 92%, respectively. The success rate was higher if non-surgical correction was initiated before age 6 weeks (96% vs. 82%). Prominent ears showed a lower success rate (85%) than other types of CADs (all > 90%). The pooled complication rate was 18% (95% CI: 10%-29%). Complications, including skin wound, irritation, and rash, were mild and easily treatable.

Conclusion: The non-surgical correction of CADs is highly effective and safe. Splints and molding systems offer similar effectiveness. Non-surgical correction is more beneficial if applied within 6 weeks of birth. Prominent ears have a lower, but still acceptable, success rate compared to other types of CAD. We recommend the early use of non-surgical correction to achieve favorable outcomes.

Level of evidence iii: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Keywords: Complication; Congenital auricular deformities; Meta-analysis; Non-surgical correction.