The Journal of Practical Medicine ›› 2025, Vol. 41 ›› Issue (12): 1767-1774.doi: 10.3969/j.issn.1006-5725.2025.12.001

• Symposiums •    

Research progress on the engineering construction of biomimetic auricle reconstruction prosthesis

Yunyun WANG1,Haijun ZHANG2,3,Li ZHANG2,Xiu WANG1,Jin CHANG3()   

  1. Clinical Medical College,Hebei University of Engineering,Handan 056038,Hebei,China
  • Received:2025-02-27 Online:2025-06-25 Published:2025-07-02
  • Contact: Jin CHANG E-mail:cjls818717@sina.com

Abstract:

Biomaterials provide a reliable and safe treatment for the repair of ear defects, especially microtia. With the continuous promotion of interdisciplinary research, the types and properties of materials used in auricle reconstruction have been greatly expanded and improved. In this paper, the latest research progress of polymer materials and tissue engineering scaffolds in the field of auricle reconstruction was reviewed, and the physical and chemical properties and clinical application effects of these scaffolds in vitro and in vivo were discussed. However, despite significant progress in ear stent research, there are still some challenges and limitations in the application of current polymer materials, such as the hydrophobicity of high-density polyethylene and the uncontrolled differentiation of stem cells in tissue engineering. Therefore, this paper discusses the research and clinical application of new modified materials, especially emphasizing the importance of surface modification technology and innovative synthesis strategies, so that the properties of modified materials are infinitely close to the characteristics of human ear cartilage. In addition, this paper also summarizes the control methods of stem cell differentiation in ear cartilage tissue engineering. The application performance and biocompatibility of different ear scaffolds were reviewed in order to provide guidance for auricle reconstruction.

Key words: auricle reconstruction, ear support, tissue engineering, biomaterial

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