Distal Radioulnar Joint Anatomy

The Distal Radioulnar Joint provides an articulation between:

• Distal End of the Radius
• Ulnar notch

Ligaments:

• Dorsal and Palmar Radioulnar Ligaments
• Triangular Fibrocartilage Complex (TFCC)

Joint Type:

• Pivot
• Synovial joint
  • Synovial joints are specialized structures that allow movement at bony articulations.
  • Composed of a joint cavity lined by synovium containing bones lined with articular cartilage
  • Structural components contain:
    • Articular cartilage - enables low friction movement
    • Ligament
    • Joint capsule - Fibrous tissue surrounding joint cavity
    • Synovium - Tissue lining non-cartilaginous portions of joint cavity and is composed of two layers, the intimal lining and the connective tissue sublining
    • Synovial fluid - Produced and regulated by the synovium