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Bones of the Upper Limb: Radius

Bones of the Upper Limb: Radius

The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
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Updated: Apr 24, 2026

Vascularized Composite Hand Allograft Procurement and Preparation for Distal and Proximal Forearm Allotransplantation: A Stepwise Approach

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Dorsal Distal Radius Plate Coverage With the Use of Extensor Retinacular Flap.

Henry R Marsh¹, Thomas M Suszynski^1,2

¹Department of Surgery, Division of Plastic Surgery.

Techniques in Hand & Upper Extremity Surgery

|April 23, 2026

Summary

Dorsal plating for distal radius fractures can risk extensor tendons. Using extensor retinacular flaps with newer plates minimizes this risk, improving outcomes for intra-articular fractures.

Keywords:

distal radius fracture dorsal plate fixation retinacular flap soft tissue coverage

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Published on: May 26, 2023

Area of Science:

Orthopedic surgery
Hand and wrist surgery
Traumatology

Background:

Distal radius fractures are frequent upper extremity injuries.
Intra-articular fractures often require dorsal approaches for precise reduction and joint congruency.
Dorsal plating risks extensor tendon irritation and rupture.

Purpose of the Study:

To describe a surgical technique using an interdigitating flap for dorsal plate coverage.
To minimize extensor tendon complications associated with dorsal plating of distal radius fractures.

Main Methods:

Utilizing newer-generation thinner dorsal plates or fragment-specific plates.
Employing extensor retinacular flaps for enhanced plate coverage.
Implementing an interdigitating flap design for optimal coverage.

Main Results:

The described technique aims to minimize the risk of extensor tendon complications.
Optimized dorsal plate coverage is achieved for specific intra-articular distal radius fractures.

Conclusions:

Extensor retinacular flaps, particularly with an interdigitating design, can effectively mitigate tendon risks with dorsal plating.
This technique offers a viable solution for treating certain intra-articular distal radius fractures with dorsal approaches.