Hand and Wrist
نویسندگان
چکیده
Two carpal rows with eight carpal bones form the wrist. From radial to ulnar, the proximal carpal row is formed by scaphoid, lunate, triquetrum, and pisiform, and the distal carpal row by trapezium, trapezoid, capitate, and hamate (Fig. 5.1). Stability is maintained by extrinsic (radiocarpal and ulnocarpal) and intrinsic (intercarpal) ligaments. Palmar and dorsal ligaments are differentiated and are named for the bones from which they originate and into which they insert, starting from proximal to distal and from radial to ulnar. The scapholunate (SLL) and lunotriquetral ligaments (LTL) are the most important intrinsic ligaments. They have thick palmar and dorsal components and thinner central portions. The triangular fibrocartilage is a biconcave disk between the ulnar styloid and the radius, with a variable thickness. Together with the meniscus homologue, Hand and Wrist
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