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Subscapularis Tear
Michael J. Tuite, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Abbreviations

            • Subscapularis (SSC)
          • Synonyms

            • SCC rupture, anterior cuff tear
          • Definitions

            • Torn fibers of SSC tendon
              • Typically in cranial portion of tendon and within 2 cm of insertion onto lesser tuberosity
            • Normal SSC function
              • Internal rotation
              • Adduction
              • Reinforcement of anterior shoulder capsule

          IMAGING

          • General Features

            • Radiographic Findings

              • CT Findings

                • MR Findings

                  • Ultrasonographic Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Staging, Grading, & Classification

                            • Gross Pathologic & Surgical Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        • Image Interpretation Pearls

                                          Selected References

                                          1. Porter NA et al: A new method for measurement of subcoracoid outlet and its relationship to rotator cuff pathology at MR arthrography. Skeletal Radiol. 44(9):1309-16, 2015
                                          2. Celikyay F et al: Locations of lesser tuberosity cysts and their association with subscapularis, supraspinatus, and long head of the biceps tendon disorders. Acta Radiol. 56(12):1494-500, 2015
                                          3. Furukawa R et al: Diagnostic accuracy of magnetic resonance imaging for subscapularis tendon tears using radial-slice magnetic resonance images. J Shoulder Elbow Surg. 23(11):e283-90, 2014
                                          4. Grueninger P et al: Arthroscopic repair of traumatic isolated subscapularis tendon lesions (Lafosse Type III or IV): a prospective magnetic resonance imaging-controlled case series with 1 year of follow-up. Arthroscopy. 30(6):665-72, 2014
                                          5. Saupe N et al: Acute traumatic posterior shoulder dislocation: MR findings. Radiology. 248(1):185-93, 2008
                                          6. Studler U et al: Abnormalities of the lesser tuberosity on radiography and MRI: association with subscapularis tendon lesions. AJR Am J Roentgenol. 191(1):100-6, 2008
                                          7. Arrigoni P et al: Calcific tendonitis of the subscapularis tendon causing subcoracoid stenosis and coracoid impingement. Arthroscopy. 22(10):1139, 2006
                                          8. Bergin D et al: Abnormalities on MRI of the subscapularis tendon in the presence of a full-thickness supraspinatus tendon tear. AJR Am J Roentgenol. 186(2):454-9, 2006
                                          9. Lyons RP et al: Subscapularis tendon tears. J Am Acad Orthop Surg. 13(5):353-63, 2005
                                          10. Richards DP et al: Relation between narrowed coracohumeral distance and subscapularis tears. Arthroscopy. 21(10):1223-8, 2005
                                          11. Tung GA et al: Subscapularis tendon tear: primary and associated signs on MRI. J Comput Assist Tomogr. 25(3):417-24, 2001
                                          12. Li XX et al: MR evaluation of subscapularis tears. J Comput Assist Tomogr. 23(5):713-7, 1999
                                          13. Pfirrmann CW et al: Subscapularis tendon tears: detection and grading at MR arthrography. Radiology. 213(3):709-14, 1999
                                          Related Anatomy
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                                          Related Differential Diagnoses
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                                          References
                                          Tables

                                          Tables

                                          KEY FACTS

                                          • Terminology

                                            • Imaging

                                              • Pathology

                                                • Clinical Issues

                                                  TERMINOLOGY

                                                  • Abbreviations

                                                    • Subscapularis (SSC)
                                                  • Synonyms

                                                    • SCC rupture, anterior cuff tear
                                                  • Definitions

                                                    • Torn fibers of SSC tendon
                                                      • Typically in cranial portion of tendon and within 2 cm of insertion onto lesser tuberosity
                                                    • Normal SSC function
                                                      • Internal rotation
                                                      • Adduction
                                                      • Reinforcement of anterior shoulder capsule

                                                  IMAGING

                                                  • General Features

                                                    • Radiographic Findings

                                                      • CT Findings

                                                        • MR Findings

                                                          • Ultrasonographic Findings

                                                            • Imaging Recommendations

                                                              DIFFERENTIAL DIAGNOSIS

                                                                PATHOLOGY

                                                                • General Features

                                                                  • Staging, Grading, & Classification

                                                                    • Gross Pathologic & Surgical Features

                                                                      CLINICAL ISSUES

                                                                      • Presentation

                                                                        • Demographics

                                                                          • Natural History & Prognosis

                                                                            • Treatment

                                                                              DIAGNOSTIC CHECKLIST

                                                                              • Consider

                                                                                • Image Interpretation Pearls

                                                                                  Selected References

                                                                                  1. Porter NA et al: A new method for measurement of subcoracoid outlet and its relationship to rotator cuff pathology at MR arthrography. Skeletal Radiol. 44(9):1309-16, 2015
                                                                                  2. Celikyay F et al: Locations of lesser tuberosity cysts and their association with subscapularis, supraspinatus, and long head of the biceps tendon disorders. Acta Radiol. 56(12):1494-500, 2015
                                                                                  3. Furukawa R et al: Diagnostic accuracy of magnetic resonance imaging for subscapularis tendon tears using radial-slice magnetic resonance images. J Shoulder Elbow Surg. 23(11):e283-90, 2014
                                                                                  4. Grueninger P et al: Arthroscopic repair of traumatic isolated subscapularis tendon lesions (Lafosse Type III or IV): a prospective magnetic resonance imaging-controlled case series with 1 year of follow-up. Arthroscopy. 30(6):665-72, 2014
                                                                                  5. Saupe N et al: Acute traumatic posterior shoulder dislocation: MR findings. Radiology. 248(1):185-93, 2008
                                                                                  6. Studler U et al: Abnormalities of the lesser tuberosity on radiography and MRI: association with subscapularis tendon lesions. AJR Am J Roentgenol. 191(1):100-6, 2008
                                                                                  7. Arrigoni P et al: Calcific tendonitis of the subscapularis tendon causing subcoracoid stenosis and coracoid impingement. Arthroscopy. 22(10):1139, 2006
                                                                                  8. Bergin D et al: Abnormalities on MRI of the subscapularis tendon in the presence of a full-thickness supraspinatus tendon tear. AJR Am J Roentgenol. 186(2):454-9, 2006
                                                                                  9. Lyons RP et al: Subscapularis tendon tears. J Am Acad Orthop Surg. 13(5):353-63, 2005
                                                                                  10. Richards DP et al: Relation between narrowed coracohumeral distance and subscapularis tears. Arthroscopy. 21(10):1223-8, 2005
                                                                                  11. Tung GA et al: Subscapularis tendon tear: primary and associated signs on MRI. J Comput Assist Tomogr. 25(3):417-24, 2001
                                                                                  12. Li XX et al: MR evaluation of subscapularis tears. J Comput Assist Tomogr. 23(5):713-7, 1999
                                                                                  13. Pfirrmann CW et al: Subscapularis tendon tears: detection and grading at MR arthrography. Radiology. 213(3):709-14, 1999