![]() The retinaculum is also attached in its passage across the wrist, to the ridges on the dorsal surface of the radius. Recurrent (thenar, motor) branch of Median Nerve. abductor pollicis brevis, flexor pollicis brevis, opponens pollicis. Contains the abductor pollicis longus and extensor pollicis brevis muscles. The extensor retinaculum of the hand divides the dorsum of the wrist into the following six compartments: Compartment 1. Management strategies include nonsurgical treatments, such as splinting, injection, or therapy, and surgical techniques such as tendon release. Terms in this set (35) Thenar Compartment Muscles. Fascial Compartments of the Dorsal Side of the Wrist. Compartment syndrome is most commonly seen in the forearm and legs, especially the lower leg. Instead the medial attachment is to the most medial of the carpal bones, the triquetrum (or triquetral bone) and pisiformis (or pisiform bone). Common conditions involving the tendons of the hand and wrist include trigger finger, tenosynovitis of the first through sixth dorsal extensor compartments, and flexor carpi radialis tendonitis. Compartment syndrome is a dreaded condition caused by increasing pressures within tightly bound myofascial compartments,. The results showed the thenar space to comprise 2 or more discrete compartments in 52 of the hands. Data were collected from the prepared cross-sections of each specimen. However, it is not attached to the ulna medially, as the distance between these two bones varies with supination and pronation of the forearm. To determine the nature and number of enclosed myofascial spaces in the hand, an anatomic study that included 21 cadaver hands was conducted using a gelatin injection method. ![]() The forearm, the wrist, and the hand are perfused by the radial and ulnar artery and their branches. The extensor retinaculum is attached laterally to the lateral margin of the radius. The intrinsic muscles of the hand are responsible for hand and finger movement and consist of the thenar, hypothenar, lumbrical, and interossei muscles. It is a strong, fibrous band, extending obliquely downward and medialward across the back of the wrist, and consisting of part of the deep fascia of the back of the forearm, strengthened by the addition of some transverse fibers. It is continuous with the palmar carpal ligament, which is located on the anterior side of the forearm. It is located on the back of the forearm, just proximal to the hand. The extensor retinaculum (dorsal carpal ligament posterior annular ligament) is an anatomical term for the thickened part of the antebrachial fascia that holds the tendons of the extensor muscles in place.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |