In the volar wrist, the carpal tunnel contains the median nerve and the flexor digitorum profundus, flexor digitorum superficialis, and flexor pollicis longus tendons (,The tendons of the dorsal wrist are also separated into six fibro-osseous compartments (see,The anatomy of the volar aspect of the fingers includes the flexor digitorum superficialis and profundus tendons. This position allows easy comparison between each side if needed. ),Hand kinesiology at the University of Kansas Medical Center,Glenohumeral (superior, middle, and inferior),https://en.wikipedia.org/w/index.php?title=Dorsal_radiocarpal_ligament&oldid=948952155,Creative Commons Attribution-ShareAlike License. The palmar radiocarpal ligament arises from anterior/palmar distal border of the radius and extends distally to the scaphoid, lunate and capitate bones. It functions to limit overextension of the wrist joint and is often described as having four distinct parts: Radioscaphocapitate ligament: forms the lateral portion of the joint capsule and extends from the styloid process of radius to the distal aspect of … Additional dorsal and palmar wrist ligaments are also present, named for their osseous attachments, categorized as intrinsic (intercarpal) or extrinsic (radiocarpal or ulnocarpal). It runs adjacent to the long radiolunate ligament, separated by the interligament sulcus. Some sources break down the components of the ligament as follows: radiolunate, radiocapitate, radiotriquetral, and radioscaphoid. C, Palmar aspect of hand including annular,Sample Diagnostic Wrist Ultrasound Report: Normal, Complete,Sample Diagnostic Wrist Ultrasound Report: Abnormal, Complete.Carpal Tunnel and Volar Wrist Evaluation (Transverse).A, Transverse imaging over the volar wrist crease shows (B) the median nerve.Volar Forearm Evaluation (Distal, Transverse).Sequential transverse ultrasound images (A and B) moving proximal to the volar wrist crease show that the median nerve.Carpal Tunnel and Volar Wrist Evaluation (Longitudinal).A, Sagittal imaging over the volar wrist crease shows (B to D) the median nerve.Volar Radial Wrist Evaluation (Longitudinal).A, Sagittal-oblique imaging over the thumb base shows (B and C) the flexor carpi radialis tendon.Volar Radial Wrist Evaluation (Transverse).A, Transverse imaging shows (B) the flexor carpi radialis tendon (,A, Transverse imaging over Guyon canal shows (B) the ulnar nerve,A, Sagittal imaging shows (B) the ulnar nerve.Dorsal Wrist Evaluation (Extensor Compartments 1 to 3).A, Transverse imaging over the Lister tubercle of the radius shows (B) the extensor pollicis longus tendon.Dorsal Wrist Evaluation (Extensor Compartments 4 to 6).A, Transverse imaging ulnar to that shown in,A, Sagittal imaging shows (B) the extensor retinaculum.Scapholunate Ligament Evaluation (Dorsal Component).Transverse imaging over the proximal carpal row shows the dorsal aspect of the scapholunate ligament,A, Coronal-oblique imaging dorsal to the ulnar styloid shows (B) the triangular fibrocartilage,(Courtesy Tracy Boon, Ann Arbor, Michigan. The dorsal radiocarpal ligament (posterior ligament) is less thick and strong than its volar counterpart, and has a proximal attachment to the posterior border of the distal radius. In this position, the various tendons of the volar wrist are identified. Following radial to ulnar, they are: The scaphotrapeziotrapezoidal ligament, which connects the distal pole of the scaphoid bone to the trapezium and trapezoid bones Regardless, a complete examination of all areas should always be considered for one to become familiar with normal anatomy and normal variants and to develop an efficient and comprehensive sonographic technique.The primary structures evaluated from the volar aspect at midline are the median nerve, the flexor tendons, and the volar aspects of the wrist joints.
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