The current state of tissue engineering in the management of hypospadias

Nat Rev Urol. 2020 Mar;17(3):162-175. doi: 10.1038/s41585-020-0281-4. Epub 2020 Feb 5.

Abstract

Hypospadias is a congenital malformation resulting from the disruption of normal urethral formation with varying global prevalence. Hypospadias repair, especially that of proximal hypospadias (in which reconstruction of a long urethra is necessary), remains a surgical challenge despite more than two decades of surgical technique development and refinement. The lack of tissue substitutes with mechanical and biological properties similar to those of native urethra is a challenge for which the field of tissue engineering might offer promising solutions. However, the use of tissue-engineered constructs in preclinical studies is still hindered by complications such as strictures or fistulae, which have slowed progression to clinical application. Furthermore, the generation of uniform tubular constructs remains a challenge. Exciting advances in the application of nanotechnology and 3D bioprinting to urethral tissue engineering might present solutions to these issues.

Publication types

  • Review

MeSH terms

  • Algorithms
  • Animals
  • Clinical Trials as Topic
  • Humans
  • Hypospadias / classification
  • Hypospadias / therapy*
  • Male
  • Plastic Surgery Procedures
  • Stem Cell Transplantation
  • Tissue Engineering / methods*
  • Urethra / surgery
  • Urologic Surgical Procedures, Male / methods*