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Ligament Injury
Alex W. H. Ng, MBChB, FRCR, FHKCR, FHKAM (Radiology); James F. Griffith, MD, MRCP, FRCR
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Synonyms

            • Skiers or gamekeepers thumb: Injury of ulnar collateral ligament (UCL) of thumb
            • Stener lesion: Proximal retraction of UCL, which then overlies adductor aponeurosis
            • Ligament sprain or strain
          • Definitions

            • Ligament: Fibrous band that connects 2 bones and helps stabilize intervening joint
            • Ligament tear: Tear or avulsion of ligament fibers
            • Avulsion: Some or all ligament fibers are torn away (avulsed) from their bony attachment
              • ± attached avulsed fragment of bone (avulsion fracture)
            • Ligament sprain or strain: Partial ligament tear

          IMAGING

          • General Features

            • Radiographic Findings

              • Ultrasonographic Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Staging, Grading, & Classification

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Image Interpretation Pearls

                                      Selected References

                                      1. Bica D et al: Reliability and precision of stress sonography of the ulnar collateral ligament. J Ultrasound Med. 34(3):371-6, 2015
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Pathology

                                            • Clinical Issues

                                              TERMINOLOGY

                                              • Synonyms

                                                • Skiers or gamekeepers thumb: Injury of ulnar collateral ligament (UCL) of thumb
                                                • Stener lesion: Proximal retraction of UCL, which then overlies adductor aponeurosis
                                                • Ligament sprain or strain
                                              • Definitions

                                                • Ligament: Fibrous band that connects 2 bones and helps stabilize intervening joint
                                                • Ligament tear: Tear or avulsion of ligament fibers
                                                • Avulsion: Some or all ligament fibers are torn away (avulsed) from their bony attachment
                                                  • ± attached avulsed fragment of bone (avulsion fracture)
                                                • Ligament sprain or strain: Partial ligament tear

                                              IMAGING

                                              • General Features

                                                • Radiographic Findings

                                                  • Ultrasonographic Findings

                                                    • MR Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            • Staging, Grading, & Classification

                                                              • Gross Pathologic & Surgical Features

                                                                • Microscopic Features

                                                                  CLINICAL ISSUES

                                                                  • Presentation

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Image Interpretation Pearls

                                                                          Selected References

                                                                          1. Bica D et al: Reliability and precision of stress sonography of the ulnar collateral ligament. J Ultrasound Med. 34(3):371-6, 2015