The Verdan classification of the finger extensor tendons. The anatomical distribution of extensor tendon regions: extrinsic extensors (regions VIII-X), wrist extensor region (region VII), dorsal hand (region VI), metacarpophalangeal (MCP) region (region V), proximal phalanx (region IV), proximal interphalangeal region (region III), middle phalanx (region II), and distal interphalangeal region (region I). The topography classification … Read more
Hand injuries are challenging to manage due to the unique anatomical structure of the hand. 01 Hand Anatomy All small joints of the hand are hinge joints. The metacarpophalangeal joint (MCP) has a saddle structure, while the proximal interphalangeal joint (PIP) and distal interphalangeal joint (DIP) have a ball-and-socket shape (Figure 1). Figure 1: Structure … Read more
Joint Structure The wrist joint consists of the radiocarpal joint and intercarpal joints. The radiocarpal joint is a condyloid joint formed by the concave distal end of the radius and the articular disc, which articulates with the convex surfaces of the scaphoid, lunate, and triquetrum bones. Some scholars do not consider the ulnar and pisiform … Read more