Congenital Auricular Deformities and Non-Surgical Correction Techniques

Congenital auricular deformities encompass a spectrum of malformations of the external ear present at birth, including prominent ears, lop ears, Stahl’s ear and cryptotia. Early neonatal cartilage exhibits increased malleability under maternal oestrogen influence, creating a critical window for non-surgical intervention. Techniques such as splinting, taping and dedicated moulding systems apply gentle, sustained pressure to reshape cartilage without incisions. These approaches aim to normalise auricular contours, minimise the need for later otoplasty and reduce psychosocial impact. Advances in device design, patient selection and outcome assessment have enhanced success rates, while emerging imaging and machine learning tools offer objective evaluation of deformation and treatment efficacy. Global adoption of non-surgical correction has grown, driven by accessibility, low complication rates and the potential for long-term aesthetic and functional benefit.

Research from Nature Portfolio

Recent studies have demonstrated that non-surgical ear moulding yields consistently high rates of satisfactory outcomes. One investigation compared assessments by experienced healthcare providers with those by a convolutional neural network (CNN) on photographs of infants who underwent ear moulding therapy. Both human raters and the CNN classified approximately three quarters of treated ears as normal, with inter-rater agreement exceeding 70%, underlining the reliability of machine-learning models in outcome evaluation and the potential to standardise aesthetic assessment.

In foundational work on automated diagnosis, deep CNN architectures have been trained on two-dimensional ear images to distinguish normal from deformed auricles with over 90% accuracy. This proof of concept highlights the feasibility of integrating artificial intelligence into early screening programmes, facilitating timely referral for non-surgical correction during the neonatal period.

Congenital Auricular Deformities and Non-Surgical Correction Techniques publication trend

The graph below shows the total number of articles in congenital auricular deformities and non-surgical correction techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Congenital auricular deformity: A malformation of the external ear present at birth affecting shape or structure.

Ear moulding therapy: A non-surgical method using splints or custom moulds to reshape neonatal auricular cartilage.

Convolutional neural network: An artificial intelligence model that analyses image data to identify and classify complex patterns.

Helix–mastoid distance: The linear measurement between the helix rim of the ear and the mastoid bone used to assess prominence.

Prominent ear: An auricular deformity characterised by excessive projection of the ear from the side of the head.

References

1. Assessing outcomes of ear molding therapy by health care providers and convolutional neural network. Scientific Reports (2021).
2. Identifying Ear Abnormality from 2D Photographs Using Convolutional Neural Networks. Scientific Reports (2019).
3. Using Ear Molding to Treat Congenital Auricular Deformities. Frontiers in Pediatrics (2021).
4. Efficacy of Classic Ear Molding for Neonatal Ear Deformity: Case Series and Literature Review. Journal of Clinical Medicine (2022).
5. Objective evaluation of nonsurgical treatment of prominent ears: A systematic review. JPRAS Open (2023).