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Related Concept Videos

Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side of the...

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[Ulnar parametacarpal flap. Anatomical study and clinical application]

J Bakhach1, Y Saint Cast, A Gazarian

  • 1Service de Chirurgie Plastique Reconstructrice et Esthétique, Chirurgie de la Main, Hôpital du Tondu-Pellegrin, Børdeaux.

Annales De Chirurgie Plastique Et Esthetique
|April 1, 1995
PubMed
Summary

A novel ulnar parametacarpal flap, utilizing the dorsal carpal branch of the ulnar artery, offers versatile reconstruction for hand and finger defects. This flap can be harvested as a sensitive skin or composite flap for improved surgical outcomes.

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Area of Science:

  • Hand surgery
  • Plastic surgery
  • Microsurgery

Context:

  • Reconstruction of hand and finger defects is a significant challenge in plastic and reconstructive surgery.
  • Existing methods may have limitations in terms of tissue availability and functional restoration.
  • The ulnar border of the hand presents an underutilized source for reconstructive flaps.

Purpose:

  • To introduce and describe the ulnar parametacarpal flap for hand reconstruction.
  • To detail the anatomical basis and vascular supply of the proposed flap.
  • To explore the clinical applications and versatility of this new reconstructive option.

Summary:

  • Anatomical study identified the dorsal carpal branch of the ulnar artery as a source for the ulnar parametacarpal flap.
  • The flap can be designed as a pedicled or free microsurgical transfer, offering a sensitive skin flap or a composite flap with bone or tendon.
  • Distal communicating vessels allow retrograde blood supply, extending the flap's reach to ulnar fingers for comprehensive defect coverage.

Impact:

  • Provides a new, versatile option for reconstructing defects of the palm and ulnar fingers.
  • Enhances the armamentarium of surgeons dealing with complex hand injuries.
  • Potentially improves functional and aesthetic outcomes in hand reconstruction patients.