The retinaculum is also attached in its passage across the wrist, to the ridges on the dorsal surface of the radius. Instead the medial attachment is to the most medial of the carpal bones, the triquetrum (or triquetral bone) and pisiformis (or pisiform bone). However, it is not attached to the ulna medially, as the distance between these two bones varies with supination and pronation of the forearm. DORSAL WRIST: compartments of extensor tendons first compartment. The extensor retinaculum is attached laterally to the lateral margin of the radius. extensor tendons can be performed by placing the hand on a gel tube with the fingers. Missed diagnosis or delayed management will cause serious immediate morbidity and potential long-term disability, with a permanent loss of function. 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. Hand infections spreading into deeper anatomical compartments are more severe and they require early surgical intervention and parenteral antibiotics. It is continuous with the palmar carpal ligament, which is located on the anterior side. Be aware that there are three main compartments in the forearm (mobile wad, anterior compartment, and dorsal compartment with each of the latter two being. ( N462, TG2-36) the deepest compartment of the palmar surface of the hand. contains the flexor tendons, the lumbricals, the superficial palmar arterial arch, and common palmar digital branches of the median and ulnar nerves. It is continuous with the palmar carpal ligament, which is located on the anterior side of the forearm. Hand contains basically ten myofascial compartments: the adductor pollicis compartment, four dorsal interossei and three palmar interossei compartments, the. It is located on the back of the forearm, just proximal to the hand. the central compartment of the palmar surface of the hand. It is located on the back of the forearm, just proximal to the hand. Recurrent (thenar, motor) branch of Median Nerve. abductor pollicis brevis, flexor pollicis brevis, opponens pollicis. The fibres of the dorsal radiocarpal ligaments are aligned more or less in the same. 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. Terms in this set (35) Thenar Compartment Muscles. six dorsal compartments (see below) and have a Z-shaped configuration.
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