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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.
The radius has a nail-shaped head, and a short...

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Radial Styloidectomy: Open Versus Arthroscopic.

Francisco Rodriguez Fontan¹, Adil Shahzad Ahmed¹

¹Department of Orthopedic Surgery, Baylor College of Medicine, 7200 Cambridge Street Suite 10A, Houston, TX 77030, USA.

|March 21, 2026

Summary

This summary is machine-generated.

Radial styloidectomy relieves wrist pain from arthritis and impingement by removing part of the radius bone. Arthroscopic techniques may better preserve important wrist ligaments, reducing instability risks.

Keywords:

Arthroscopic styloidectomy Open styloidectomy Radial styloidectomy Radioscaphoid arthritis Wrist arthroscopy

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Area of Science:

Orthopedic Surgery
Wrist Arthroscopy
Hand Surgery

Background:

Radioscaphoid arthritis and impingement cause wrist pain and dysfunction.
Radial styloidectomy (RS) is a surgical option for these conditions.
The procedure aims to decompress the radioscaphoid joint.

Purpose of the Study:

To describe the surgical procedure of radial styloidectomy.
To compare open versus arthroscopic approaches for RS.
To highlight the importance of preserving volar radiocarpal ligaments.

Main Methods:

Radial styloidectomy involves removing the distal radius styloid.
Procedures can be performed via open surgery or arthroscopy.
Arthroscopic RS may offer advantages in ligament preservation.

Main Results:

Both open and arthroscopic RS address radioscaphoid pathology.
Arthroscopic RS potentially enhances visualization and preserves the radioscaphocapitate (RSC) ligament.
Careful technique is crucial to avoid RSC ligament damage.

Conclusions:

Radial styloidectomy is an effective treatment for specific wrist conditions.
Arthroscopic RS may offer superior outcomes regarding ligament integrity.
Preventing RSC ligament injury is key to successful RS and avoiding complications like instability.