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Acetabular Labral Tear
MK Jesse, MD; Donna G. Blankenbaker, MD, FACR; Kirkland W. Davis, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Abbreviations

              • Labral tear
            • Synonyms

              • Hip labrum tear, labral detachment, labral avulsion
            • Definitions

              • Tear, avulsion, or detachment of acetabular labrum
              • Degeneration, fraying or fissuring of labrum

            IMAGING

            • General Features

              • Radiographic Findings

                • Fluoroscopic Findings

                  • CT Findings

                    • MR Findings

                      • Ultrasonographic Findings

                        • Imaging Recommendations

                          DIFFERENTIAL DIAGNOSIS

                            PATHOLOGY

                            • General Features

                              • Staging, Grading, & Classification

                                • Gross Pathologic & Surgical Features

                                  • Microscopic Features

                                    CLINICAL ISSUES

                                    • Presentation

                                      • Demographics

                                        • Natural History & Prognosis

                                          • Treatment

                                            DIAGNOSTIC CHECKLIST

                                            • Consider

                                              • Image Interpretation Pearls

                                                • Reporting Tips

                                                  Selected References

                                                  1. Kraeutler MJ et al: Combined lateral osseolabral coverage is normal in hips with acetabular dysplasia. Arthroscopy. 35(3):800-6, 2019
                                                  2. Uchida S et al: Arthroscopic management for acetabular rim stress fracture and osteochondritis dissecans in the athlete with hip dysplasia. Arthrosc Tech. 7(5):e533-9, 2018
                                                  3. Li AE et al: MRI for the preoperative evaluation of femoroacetabular impingement. Insights Imaging. 7(2):187-98, 2016
                                                  4. Petersen BD et al: Lateral acetabular labral length is inversely related to acetabular coverage as measured by lateral center edge angle of Wiberg. J Hip Preserv Surg. 3(3):190-6, 2016
                                                  5. Petchprapa CN et al: Labral and cartilage abnormalities in young patients with hip pain: accuracy of 3-Tesla indirect MR arthrography. Skeletal Radiol. 44(1):97-105, 2015
                                                  6. Schmaranzer F et al: Diagnostic performance of direct traction MR arthrography of the hip: detection of chondral and labral lesions with arthroscopic comparison. Eur Radiol. 25(6):1721-30, 2014
                                                  7. Tian CY et al: 3.0 T conventional hip MR and hip MR arthrography for the acetabular labral tears confirmed by arthroscopy. Eur J Radiol. 83(10):1822-7, 2014
                                                  8. Blankenbaker DG et al: Acetabular labrum. Magn Reson Imaging Clin N Am. 21(1):21-33, 2013
                                                  9. Ha YC et al: The diagnostic value of direct CT arthrography using MDCT in the evaluation of acetabular labral tear: with arthroscopic correlation. Skeletal Radiol. 42(5):681-8, 2013
                                                  10. Nguyen MS et al: Hip anatomic variants that may mimic abnormalities at MRI: labral variants. AJR Am J Roentgenol. 201(3):W394-400, 2013
                                                  11. Skendzel JG et al: Management of labral tears of the hip in young patients. Orthop Clin North Am. 44(4):477-87, 2013
                                                  12. Thomas JD et al: Imaging of the acetabular labrum. Semin Musculoskelet Radiol. 17(3):248-57, 2013
                                                  13. Blankenbaker DG et al: Labral injuries due to iliopsoas impingement: can they be diagnosed on MR arthrography? AJR Am J Roentgenol. 199(4):894-900, 2012
                                                  14. Corten K et al: Bone apposition of the acetabular rim in deep hips: a distinct finding of global pincer impingement. J Bone Joint Surg Am. 93 Suppl 2:10-6, 2011
                                                  15. Domb BG et al: Iliopsoas impingement: a newly identified cause of labral pathology in the hip. HSS J. 7(2):145-50, 2011
                                                  16. Smith TO et al: The diagnostic accuracy of acetabular labral tears using magnetic resonance imaging and magnetic resonance arthrography: a meta-analysis. Eur Radiol. 21(4):863-74, 2011
                                                  17. Hong SJ et al: Imaging findings of femoroacetabular impingement syndrome: focusing on mixed-type impingement. Clin Imaging. 34(2):116-20, 2010
                                                  18. Potter HG et al: High resolution noncontrast MRI of the hip. J Magn Reson Imaging. 31(2):268-78, 2010
                                                  19. Zlatkin MB et al: Acetabular labral tears and cartilage lesions of the hip: indirect MR arthrographic correlation with arthroscopy--a preliminary study. AJR Am J Roentgenol. 194(3):709-14, 2010
                                                  20. Kang C et al: Acetabular labral tears in patients with sports injury. Clin Orthop Surg. 1(4):230-5, 2009
                                                  21. Hong RJ et al: Magnetic resonance imaging of the hip. J Magn Reson Imaging. 27(3):435-45, 2008
                                                  22. Studler U et al: MR arthrography of the hip: differentiation between an anterior sublabral recess as a normal variant and a labral tear. Radiology. 249(3):947-54, 2008
                                                  23. Blankenbaker DG et al: Classification and localization of acetabular labral tears. Skeletal Radiol. 36(5):391-7, 2007
                                                  24. Toomayan GA et al: Sensitivity of MR arthrography in the evaluation of acetabular labral tears. AJR Am J Roentgenol. 186(2):449-53, 2006
                                                  25. Kassarjian A et al: Triad of MR arthrographic findings in patients with cam-type femoroacetabular impingement. Radiology. 236(2):588-92, 2005
                                                  26. Kelly BT et al: Arthroscopic labral repair in the hip: surgical technique and review of the literature. Arthroscopy. 21(12):1496-504, 2005
                                                  27. Petersilge C: Imaging of the acetabular labrum. Magn Reson Imaging Clin N Am. 13(4):641-52, vi, 2005
                                                  28. Zoga AC et al: Technical considerations in MR imaging of the hip. Magn Reson Imaging Clin N Am. 13(4):617-34, v, 2005
                                                  29. McCarthy J et al: Anatomy, pathologic features, and treatment of acetabular labral tears. Clin Orthop Relat Res. (406):38-47, 2003
                                                  30. Czerny C et al: [Magnetic resonance imaging and magnetic resonance arthrography of the acetabular labrum: comparison with surgical findings] Rofo. 173(8):702-7, 2001
                                                  Related Anatomy
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                                                  Related Differential Diagnoses
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                                                  References
                                                  Tables

                                                  Tables

                                                  KEY FACTS

                                                  • Terminology

                                                    • Imaging

                                                      • Pathology

                                                        • Clinical Issues

                                                          • Diagnostic Checklist

                                                            TERMINOLOGY

                                                            • Abbreviations

                                                              • Labral tear
                                                            • Synonyms

                                                              • Hip labrum tear, labral detachment, labral avulsion
                                                            • Definitions

                                                              • Tear, avulsion, or detachment of acetabular labrum
                                                              • Degeneration, fraying or fissuring of labrum

                                                            IMAGING

                                                            • General Features

                                                              • Radiographic Findings

                                                                • Fluoroscopic Findings

                                                                  • CT Findings

                                                                    • MR Findings

                                                                      • Ultrasonographic Findings

                                                                        • Imaging Recommendations

                                                                          DIFFERENTIAL DIAGNOSIS

                                                                            PATHOLOGY

                                                                            • General Features

                                                                              • Staging, Grading, & Classification

                                                                                • Gross Pathologic & Surgical Features

                                                                                  • Microscopic Features

                                                                                    CLINICAL ISSUES

                                                                                    • Presentation

                                                                                      • Demographics

                                                                                        • Natural History & Prognosis

                                                                                          • Treatment

                                                                                            DIAGNOSTIC CHECKLIST

                                                                                            • Consider

                                                                                              • Image Interpretation Pearls

                                                                                                • Reporting Tips

                                                                                                  Selected References

                                                                                                  1. Kraeutler MJ et al: Combined lateral osseolabral coverage is normal in hips with acetabular dysplasia. Arthroscopy. 35(3):800-6, 2019
                                                                                                  2. Uchida S et al: Arthroscopic management for acetabular rim stress fracture and osteochondritis dissecans in the athlete with hip dysplasia. Arthrosc Tech. 7(5):e533-9, 2018
                                                                                                  3. Li AE et al: MRI for the preoperative evaluation of femoroacetabular impingement. Insights Imaging. 7(2):187-98, 2016
                                                                                                  4. Petersen BD et al: Lateral acetabular labral length is inversely related to acetabular coverage as measured by lateral center edge angle of Wiberg. J Hip Preserv Surg. 3(3):190-6, 2016
                                                                                                  5. Petchprapa CN et al: Labral and cartilage abnormalities in young patients with hip pain: accuracy of 3-Tesla indirect MR arthrography. Skeletal Radiol. 44(1):97-105, 2015
                                                                                                  6. Schmaranzer F et al: Diagnostic performance of direct traction MR arthrography of the hip: detection of chondral and labral lesions with arthroscopic comparison. Eur Radiol. 25(6):1721-30, 2014
                                                                                                  7. Tian CY et al: 3.0 T conventional hip MR and hip MR arthrography for the acetabular labral tears confirmed by arthroscopy. Eur J Radiol. 83(10):1822-7, 2014
                                                                                                  8. Blankenbaker DG et al: Acetabular labrum. Magn Reson Imaging Clin N Am. 21(1):21-33, 2013
                                                                                                  9. Ha YC et al: The diagnostic value of direct CT arthrography using MDCT in the evaluation of acetabular labral tear: with arthroscopic correlation. Skeletal Radiol. 42(5):681-8, 2013
                                                                                                  10. Nguyen MS et al: Hip anatomic variants that may mimic abnormalities at MRI: labral variants. AJR Am J Roentgenol. 201(3):W394-400, 2013
                                                                                                  11. Skendzel JG et al: Management of labral tears of the hip in young patients. Orthop Clin North Am. 44(4):477-87, 2013
                                                                                                  12. Thomas JD et al: Imaging of the acetabular labrum. Semin Musculoskelet Radiol. 17(3):248-57, 2013
                                                                                                  13. Blankenbaker DG et al: Labral injuries due to iliopsoas impingement: can they be diagnosed on MR arthrography? AJR Am J Roentgenol. 199(4):894-900, 2012
                                                                                                  14. Corten K et al: Bone apposition of the acetabular rim in deep hips: a distinct finding of global pincer impingement. J Bone Joint Surg Am. 93 Suppl 2:10-6, 2011
                                                                                                  15. Domb BG et al: Iliopsoas impingement: a newly identified cause of labral pathology in the hip. HSS J. 7(2):145-50, 2011
                                                                                                  16. Smith TO et al: The diagnostic accuracy of acetabular labral tears using magnetic resonance imaging and magnetic resonance arthrography: a meta-analysis. Eur Radiol. 21(4):863-74, 2011
                                                                                                  17. Hong SJ et al: Imaging findings of femoroacetabular impingement syndrome: focusing on mixed-type impingement. Clin Imaging. 34(2):116-20, 2010
                                                                                                  18. Potter HG et al: High resolution noncontrast MRI of the hip. J Magn Reson Imaging. 31(2):268-78, 2010
                                                                                                  19. Zlatkin MB et al: Acetabular labral tears and cartilage lesions of the hip: indirect MR arthrographic correlation with arthroscopy--a preliminary study. AJR Am J Roentgenol. 194(3):709-14, 2010
                                                                                                  20. Kang C et al: Acetabular labral tears in patients with sports injury. Clin Orthop Surg. 1(4):230-5, 2009
                                                                                                  21. Hong RJ et al: Magnetic resonance imaging of the hip. J Magn Reson Imaging. 27(3):435-45, 2008
                                                                                                  22. Studler U et al: MR arthrography of the hip: differentiation between an anterior sublabral recess as a normal variant and a labral tear. Radiology. 249(3):947-54, 2008
                                                                                                  23. Blankenbaker DG et al: Classification and localization of acetabular labral tears. Skeletal Radiol. 36(5):391-7, 2007
                                                                                                  24. Toomayan GA et al: Sensitivity of MR arthrography in the evaluation of acetabular labral tears. AJR Am J Roentgenol. 186(2):449-53, 2006
                                                                                                  25. Kassarjian A et al: Triad of MR arthrographic findings in patients with cam-type femoroacetabular impingement. Radiology. 236(2):588-92, 2005
                                                                                                  26. Kelly BT et al: Arthroscopic labral repair in the hip: surgical technique and review of the literature. Arthroscopy. 21(12):1496-504, 2005
                                                                                                  27. Petersilge C: Imaging of the acetabular labrum. Magn Reson Imaging Clin N Am. 13(4):641-52, vi, 2005
                                                                                                  28. Zoga AC et al: Technical considerations in MR imaging of the hip. Magn Reson Imaging Clin N Am. 13(4):617-34, v, 2005
                                                                                                  29. McCarthy J et al: Anatomy, pathologic features, and treatment of acetabular labral tears. Clin Orthop Relat Res. (406):38-47, 2003
                                                                                                  30. Czerny C et al: [Magnetic resonance imaging and magnetic resonance arthrography of the acetabular labrum: comparison with surgical findings] Rofo. 173(8):702-7, 2001