eMedicine - Triangular Fibrocartilage Complex Injuries : Article by James R Verheyden, MD Triangular Fibrocartilage Complex Injuries - In 1981, Palmer and Werner introduced the term "triangular fibrocartilage complex" (TFCC) to describe the ligamentous and cartilaginous structures that suspend the distal radius and ulnar carpus from the distal ulna (see Image 1 ). The TFCC is the major ligamentous stabilizer of the distal radioulnar joint (DRUJ) and the ulnar carpus.Functions of the TFCC are as follows: Provides a continuous gliding surface across the entire distal face of the 2 ... with 1981complexfibrocartilageinjuriesintroducedpalmertriangularwerner