Where is the scaphoid tubercle located?

The scaphoid tubercle is a bony prominence on the ventral surface of the lateral portion of the distal pole.

What is the tubercle of scaphoid bone?

a. The scaphoid tubercle is a blunt, nonarticular projection adjacent to the hollowed capitate facet on the lateral edge of the bone. The tubercle is one of four attachment points for the flexor retinaculum, a fibrous band across the wrist.

What attaches to tubercle of scaphoid?

The palmar surface of the scaphoid is concave, and forming a tubercle, giving attachment to the transverse carpal ligament. The proximal surface is triangular, smooth and convex, and articulates with the radius and adjacent carpal bones, namely the lunate, capitate, trapezium and trapezoid.

What is telescoping of the thumb?

a digital deformity with collapsing of soft tissue resultant from the bone resorption in arthritis nutilans.

What nerve Innervates the scaphoid?

The radial artery crosses the dorsal surface of the scaphoid. The scaphoid forms the radial portion of the carpal tunnel and is therefore related to the structures that pass through it, namely fibers from flexor digitorum profundus and superficialis, the median nerve, flexor pollicis longus and flexor carpi radialis.

What is Perilunate dislocation?

A perilunate dislocation is disruption of the normal relationship between the lunate and capitate. A lunate dislocation is separation of the lunate from both the capitate and the radius. Perilunate and lunate dislocations result when great force is applied to a hyperextended wrist.

What attaches to tubercle of trapezium?

The abductor pollicis brevis muscle attaches to the tubercle of the trapezium.

Why does my trapezium hurt?

Basal joint arthritis is one injury that is common to the trapezium/first metacarpal joint. It causes pain at the base of the thumb,particularly during pinching or gripping. It also results in weakness when pinching. This joint appears to be particularly prone to wear and tear from normal use of the hand.