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Triangular Fibrocartilage Complex Injury
Julia R. Crim, MD; William B. Morrison, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          TERMINOLOGY

          • Definitions

            • Triangular fibrocartilage complex (TFCC): 5 components
              • Triangular fibrocartilage (TFC): Extends from radial cartilage ("central" portion) to ulnar styloid ("peripheral" portion)
                • Periphery has 2 attachments: Tip of styloid and fovea (recess at base of styloid)
              • Dorsal and volar radioulnar ligaments: Extend from radius to styloid process at margins of TFC
              • Ulnolunate and ulnotriquetral ligaments
              • Meniscal homologue (triangle-shaped fatty tissue adjacent to styloid)
              • Extensor carpi ulnaris (ECU) tendon sheath

          IMAGING

          • Imaging Recommendations

            • MR Findings

              DIFFERENTIAL DIAGNOSIS

                PATHOLOGY

                • General Features

                  CLINICAL ISSUES

                  • Presentation

                    • Demographics

                      • Natural History & Prognosis

                        • Treatment

                          Selected References

                          1. Asaad AM et al: Diagnostic accuracy of single-compartment magnetic resonance arthrography in detecting common causes of chronic wrist pain. J Hand Surg Eur Vol. 1753193417695180, 2017
                          2. Berná-Serna JD et al: Evaluation of the triangular fibrocartilage in cadaveric wrists by means of arthrography, magnetic resonance (MR) imaging, and MR arthrography. Acta Radiol. 48(1):96-103, 2007
                          3. Rüegger C et al: Peripheral tear of the triangular fibrocartilage: depiction with MR arthrography of the distal radioulnar joint. AJR Am J Roentgenol. 188(1):187-92, 2007
                          4. Oneson SR et al: MR imaging interpretation of the Palmer classification of triangular fibrocartilage complex lesions. Radiographics. 16(1):97-106, 1996
                          Related Anatomy
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                          Related Differential Diagnoses
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                          References
                          Tables

                          Tables

                          KEY FACTS

                          • Terminology

                            • Imaging

                              • Top Differential Diagnoses

                                • Pathology

                                  TERMINOLOGY

                                  • Definitions

                                    • Triangular fibrocartilage complex (TFCC): 5 components
                                      • Triangular fibrocartilage (TFC): Extends from radial cartilage ("central" portion) to ulnar styloid ("peripheral" portion)
                                        • Periphery has 2 attachments: Tip of styloid and fovea (recess at base of styloid)
                                      • Dorsal and volar radioulnar ligaments: Extend from radius to styloid process at margins of TFC
                                      • Ulnolunate and ulnotriquetral ligaments
                                      • Meniscal homologue (triangle-shaped fatty tissue adjacent to styloid)
                                      • Extensor carpi ulnaris (ECU) tendon sheath

                                  IMAGING

                                  • Imaging Recommendations

                                    • MR Findings

                                      DIFFERENTIAL DIAGNOSIS

                                        PATHOLOGY

                                        • General Features

                                          CLINICAL ISSUES

                                          • Presentation

                                            • Demographics

                                              • Natural History & Prognosis

                                                • Treatment

                                                  Selected References

                                                  1. Asaad AM et al: Diagnostic accuracy of single-compartment magnetic resonance arthrography in detecting common causes of chronic wrist pain. J Hand Surg Eur Vol. 1753193417695180, 2017
                                                  2. Berná-Serna JD et al: Evaluation of the triangular fibrocartilage in cadaveric wrists by means of arthrography, magnetic resonance (MR) imaging, and MR arthrography. Acta Radiol. 48(1):96-103, 2007
                                                  3. Rüegger C et al: Peripheral tear of the triangular fibrocartilage: depiction with MR arthrography of the distal radioulnar joint. AJR Am J Roentgenol. 188(1):187-92, 2007
                                                  4. Oneson SR et al: MR imaging interpretation of the Palmer classification of triangular fibrocartilage complex lesions. Radiographics. 16(1):97-106, 1996