The flexor retinaculum ( transverse carpal ligament, or anterior annular ligament) is a fibrous band on the palmar side of the hand near the wrist. It arches over the carpal bones of the hands, covering them and forming the carpal tunnel . Structure The flexor retinaculum is a fibrous connective tissue band that forms the anterior roof of the carpal tunnel (see Image. Flexor Retinaculum of the Wrist). Many experts consider the flexor retinaculum synonymous with the transverse carpal and annular ligaments.
Flexor retinaculum Physiopedia
Flexor retinaculum is a strong fibrous band which bridges the anterior concavity of the carpal bones thus converts it into a tunnel, the carpal tunnel [1]. Attachments Medially, To the pisiform bone To the hook of the hamate Laterally, To the tubercle of the scaphoid To the crest of the trapezium [1] 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 forms the floor of Guyon's canal. The roof of the carpal tunnel is formed by the flexor retinaculum (also known as transverse carpal ligament), a thick connective tissue ligament. This ligament bridges the space between the medial and lateral ends of the carpal arch, converting the arch into a tunnel. Contents Tendons of flexor digitorum profundus muscle Flexor Retinaculum Thick connective tissue which forms the roof of the carpal tunnel. Turns the carpal arch into the carpal tunnel by bridging the space between the medial and lateral parts of the arch. Spans between the hook of hamate and pisiform (medially) to the scaphoid and trapezium (laterally).
Flexor Retinaculum (Hand) Earth's Lab
Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy (condition in which a nerve gets pinched) and results from compression of the median nerve in the wrist region. The median nerve provides sensation to the palm side of the thumb, index, middle, and part of the ring finger, and it supplies power to most of the thumb muscles. Structure Function List of Clinical Correlates Anatomical Relations The flexor retinaculum is continuous with the palmar carpal ligament. The ulnar artery and nerve and cutaneous branches of the median and ulnar nerves pass superficial to the flexor retinaculum. Definition The flexor retinaculum (transverse carpal ligament; anterior annular ligament) is a strong, fibrous band, which arches over the carpus, converting the deep groove on the front of the carpal bones into a tunnel, through which the Flexor tendons of the digits and the median nerve pass. 1/4 Synonyms: none Intercarpal joints are all classified as synovial plane joints, meaning that the articular surfaces are functionally considered as nearly flat and lined with fibrocartilage. The joints are enclosed by the thin fibrous capsules whose internal surfaces are lined by the synovial membranes.
Strained Flexor Retinaculum of the Foot
Flexor Tendon Injuries are traumatic injuries to the flexor digitorum superficialis and flexor digitorum profundus tendons that can be caused by laceration or trauma.. Zone is unique in that FDP and FDS in same tendon sheath (both can be injured within the flexor retinaculum). Tendons can retract if vincula are disrupted. The flexor retinaculum of foot ( laciniate ligament, internal annular ligament) is a strong fibrous band in the foot . Structure The flexor retinaculum of the foot extends from the medial malleolus above, to the calcaneus below. [1]
The Palmar carpal ligament (PCL) is a distinct component of the antebrachial fascia. The distal part and the true covering of the carpal tunnel is the flexor retinaculum. There is an area in the distal part of the flexor retinaculum that consists of crisscrossing of muscle aponeurosis of the thenar and hypothenar muscles ( Fig. 18.9a,b ). Anatomy of the flexor retinaculum For an accurate definition of the anatomic limits of the carpal tunnel, 26 cadaver upper extremities were studied by gross (lo), histologic (3), and radiographic (13) methods.. ture is the transverse carpal ligament.4-6 Flexor reti- nuculum and transverse carpal ligament are considered
View of the wrist showing the flexor retinaculum at the wrist and the carpal tunnel where the
The hamulus also serves as the attachment point for a number of different muscles and ligaments of the hand and forearm, including the flexor retinaculum. Articulations The hamate bone articulates with several adjacent bones: The proximal surface articulates with the lunate bone; Definition The TCL is the middle portion of the flexor retinaculum (FR). 1 The proximal portion of the FR is the distal continuation of the antebrachial fascia. 2 The transition from the antebrachial fascia to the TCL can be identified based on gross inspection, predominantly marked by the abrupt increase in thickness.
