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Clinical Tools

Defect Calculator

Calculates excision dimensions, defect area (cm²), and optimal fusiform design parameters including length-to-width ratio. Includes visual diagram of the planned excision.

Privacy: All calculations are performed locally in your browser. No patient data is transmitted, stored, or shared.

This platform is not a HIPAA Business Associate. Do not enter identifiable patient information.

References

  1. Tilleman TR, Tilleman MM, Neumann MH. The elastic properties of cancerous skin: Poisson's ratio and Young's modulus. Isr Med Assoc J. 2004;6(12):753-755.
  2. Bechara FG, Sand M, Sand D, et al. Elliptical excision: revisiting the length-to-width ratio. Dermatol Surg. 2007;33(9):1091-1096.

For surgical planning only. Calculations are based on standard 3:1 fusiform geometry. Actual dimensions may vary with tissue elasticity and anatomical considerations.

By Dr. Yehonatan Kaplan · Kaplan Clinic