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Ventral penile curvature estimation using an app.

Carlos A Villanueva1

  • 1Phoenix Children's Hospital, 1920 E. Cambridge Ave., Ste. 302, Phoenix, 85006, AZ, USA.

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Summary
This summary is machine-generated.

An app-based method improved penile curvature measurements among non-urologists, showing significantly lower errors than traditional techniques. This digital approach may reduce unintended surgeries in hypospadias repair.

Keywords:
ChordeeCongenital penile curvatureHypospadiasPenile curvature

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Area of Science:

  • Urology
  • Medical Technology
  • Surgical Planning

Background:

  • Penile curvature assessment is crucial for hypospadias surgery, influencing the decision between one- or two-stage procedures.
  • Current measurement methods by pediatric urologists include unaided visual inspection (UVI) and goniometry.

Purpose of the Study:

  • To evaluate the accuracy of a novel app-based method for measuring penile curvature.
  • To compare the app-based method's accuracy against traditional techniques (UVI and goniometry) among non-urologists.

Main Methods:

  • Non-urology medical professionals used an app with graded images to estimate curvature from 3D penile models.
  • Measurements were compared to true values and to historical data from urologists using UVI and goniometry.
  • Measurement error was calculated as the absolute difference between estimated and true curvature.

Main Results:

  • The app-based method demonstrated significantly lower mean errors (1.9°-7.1°) compared to UVI (6.5°-15°) and goniometry (4.4°-15.9°).
  • Median error for the app was 0°, compared to 5-10° for UVI and goniometry.
  • The app method resulted in a statistically significant reduction in potential unintended surgeries (17% vs. 37%).

Conclusions:

  • The app-based method offers improved accuracy for penile curvature estimation compared to current standard methods.
  • This pilot study highlights the potential of digital tools in enhancing surgical planning for hypospadias.
  • Plastic models are valuable for testing and comparing penile curvature measurement techniques.