Items tagged “wrist”

Ultrasound is a useful imaging modality for evaluation of the wrist, allowing high-resolution imaging of anatomy while simultaneously allowing dynamic evaluation of the joints, tendons, and ligaments. Approach There are multiple possible approaches to imaging the wrist with ultrasound. The exa...

A bipartite scaphoid is a rare example of a divided carpus. There is controversy whether this condition is congenital (i.e. normal variant) or post-traumatic. Bipartite scaphoids may be unilateral or bilateral. Diagnosis Diagnostic criteria have been proposed 3: no history of traumatic inj...

The space of Poirier is an area of the palmar wrist capsule, between the radial and ulnar capsular ligaments. It lies in the interval between the capitate and lunate and has poor ligamentous support, hence is associated with perilunate dislocation/instability. 

The Matti-Russe procedure involves operative treatment of a non-unified scaphoid fracture by placing a wedge-shaped bone graft from the iliac crest into the scaphoid fracture site, followed by fixation with Kirschner wires (K-wires) 1.  Alternatively the bone graft can be taken from the distal ...

The flexor retinaculum (also known as the transverse carpal ligament) is a rectangular-shaped fibrous band located at the volar aspect of the hand, near the wrist. Gross anatomy The flexor retinaculum encloses and forms the roof of the carpal tunnel. The ulna aspect of the flexor retinaculum f...

The carpal tunnel is a fibro-osseous canal in the anterior (volar) wrist that acts as a passageway for structures between the anterior forearm and the hand. Gross anatomy Boundaries superficial border (roof): flexor retinaculum deep border (floor): carpal groove (formed by palmar aspect of c...

The radiocarpal joint is an articulation between the distal radius and the proximal carpal row of the wrist. It is a major synovial joint of the wrist and is an example of a condyloid joint.  Gross anatomy Location The joint occurs proximally between the concave surface of the distal end of t...

The pisiform (os pisiforme) is a small carpal bone on the medial side of the proximal carpal bones row. It is considered a sesamoid bone within the tendon flexor carpi ulnaris.  Gross anatomy The pisiform sits in an anterior plane to the rest of the carpal bones and articulates with the trique...

Isolated distal radioulnar joint (DRUJ) dislocations are rare and are more commonly part of complex forearm fracture-dislocations.  Clinical presentation Wrist pain, swelling and deformity following FOOSH or direct trauma. The patient will be unable to supinate/pronate the forearm 1,2.  Patho...

Four-corner fusion is a partial fusion technique used in some patients with advanced degenerative change in the wrist. Partial fusion reduces pain from the joint while still preserving some motion (as opposed to a total wrist fusion). Indications Advanced arthritis from scapholunate advanced ...

Die-punch fractures result from an axial loading force on the distal radius. It is an intra-articular fracture of the lunate fossa of the distal radius 1. It is by definition depressed or impacted and is named after the machining technique of shearing a shape, depression or hole in a material wi...