Related Experiment Video
Updated: Aug 17, 2026

06:40
Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
Avascular necrosis of the proximal carpal row. A case report
Abstract:
Avascular necrosis of bone has been described in many sites, including the carpal bones. The case history of a patient with avascular necrosis of the entire proximal row, previously undescribed, is detailed. Numerous contributing factors, including steroid administration, hyperlipidemia, and systemic lupus erythematosus are noted. Occult wrist pain in any patient with known risk factors for avascular necrosis is a warning sign; early bone scan may help prevent late complications.
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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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The radius has a nail-shaped head, and a short...
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