Related Experiment Video
Updated: Jan 27, 2026

Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction
Published on: December 5, 2025
Crescentic Modification to Island Pedicle Rotation Flaps for Defects of the Distal Nose
Nicole M Howe1, David L Chen2, Todd E Holmes2
1Department of Dermatology, University of Pennsylvania, Philadelphia, PA.
Background:
Island pedicle flaps based on a lateral sling of the nasalis have difficulty reaching distal nasal defects due to tethering of the muscle to its insertion point. The authors hypothesized that reach could be improved by modifying a crescentic flap to rotate around a pivot point equidistant to the flap and the defect.
Objective:
To describe the design, execution, and results with a modified crescentic island pedicle rotation flap for repair of distal nasal defects after Mohs micrographic surgery.
Methods:
The authors performed a retrospective analysis of patients who had distal nasal defects repaired with a modified crescentic island pedicle rotation flap over an 8-year period. All charts and photographs were examined. Sex and age of the patient, type of cutaneous carcinoma, location and size of the defect, and complications were recorded.
Results:
Forty-eight patients were included. The flap was used to successfully reconstruct defects on the distal nose ranging in size from 0.25 cm to 3.8 cm. Complications involved one wound infection and one episode of postoperative bleeding.
Conclusion:
The authors' modifications to the island pedicle flap may be reliably used to reconstruct small- to medium-sized defects of the distal nose in a single stage with minimal risk of complications.
Related Concept Videos
Nose and Nasal Cavity
Histone Modification
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
Spreading of Chromatin Modifications
Writers
The writer...
Lumber Defects
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Kinematic Equations for Rotation
For instance, imagine a point A on a rigid body engaged in circular motion. The translational velocity of this particular point can be calculated by taking the time derivatives of the displacement equation, which essentially measures the...
Rotation of Asymmetric Top
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...

