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Lift is a fundamental aerodynamic force that acts perpendicular to the direction of airflow. It plays a central role in achieving and sustaining flight and in stabilizing various vehicles. Lift primarily originates from pressure differences created across surfaces, such as an airfoil. A lower pressure region forms above the wing, while a higher pressure region forms below it, generating an upward force. This differential results from the shape and orientation of the airfoil, enabling the wing...
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Studying stress transformation is essential in understanding how stress components within a material, like a cube under plane stress, change with rotation. This change is analyzed by considering a prismatic element within the cube. As the element rotates, the stress components acting on it—both normal and shearing stresses—change in magnitude and orientation. This change is quantified using trigonometric functions of the rotation angle, relating the forces acting on the rotated element's...
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Donor Posterior Atrial Flap Rotation for Left Atrial Cuff Reconstruction in Lung Transplantation
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Flap Basics I: Rotation and Transposition Flaps.

Sidney J Starkman1, Carson T Williams1, David A Sherris1

  • 1Department of Otolaryngology, University at Buffalo, 1237 Delaware Avenue, Buffalo, NY 14209, USA.

Facial Plastic Surgery Clinics of North America
|July 6, 2017
PubMed
Summary
This summary is machine-generated.

Local flaps are crucial for reconstructing complex facial defects when primary closure is not possible. These techniques offer excellent cosmetic outcomes with minimal distortion for patients undergoing procedures like Mohs surgery.

Keywords:
BilobeMohsReconstructionRhombicRotation flapTransposition flap

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Area of Science:

  • Plastic Surgery
  • Dermatologic Surgery
  • Reconstructive Surgery

Background:

  • Complex facial defects often result from advanced cutaneous malignancies, precluding primary wound closure.
  • Local flaps offer a viable solution for reconstructing these challenging defects by recruiting adjacent tissue.

Purpose of the Study:

  • To highlight the effectiveness of local flap techniques in facial reconstruction.
  • To emphasize the importance of meticulous planning and surgical execution for optimal outcomes.

Main Methods:

  • Review of local flap techniques for facial reconstruction.
  • Application of local flaps in cases of defects from Mohs surgery and trauma.

Main Results:

  • Local flaps enable reconstruction when primary closure is impossible, yielding ideal results.
  • Advances in techniques have improved reconstructive capabilities for facial defects.

Conclusions:

  • Well-planned and executed local flaps achieve excellent cosmetic results with minimal distortion of facial landmarks.
  • Local flaps are a cornerstone in managing complex facial defects, particularly after Mohs surgery.