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Menisci: Postoperative Imaging
Andrew Sonin, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      TERMINOLOGY

      • Abbreviations

        • Meniscal allograft transplantation (MAT)
      • Synonyms

        • Status post meniscectomy
      • Definitions

        • Previous meniscal repair or previous partial or complete meniscal resection (meniscectomy)
        • Meniscal allograft: Transplantation of cadaveric meniscal tissue to replace severely torn native meniscus

      IMAGING

      • General Features

        • CT Findings

          • MR Findings

            • Imaging Recommendations

              DIFFERENTIAL DIAGNOSIS

                PATHOLOGY

                • General Features

                  CLINICAL ISSUES

                  • Presentation

                    • Natural History & Prognosis

                      DIAGNOSTIC CHECKLIST

                      • Consider

                        • Image Interpretation Pearls

                          Selected References

                          1. Kim JM et al: Comparison of postoperative magnetic resonance imaging and second-look arthroscopy for evaluating meniscal allograft transplantation. Arthroscopy. 31(5):859-66, 2015
                          2. Popescu D et al: MR-arthrography assessment after repair of chronic meniscal tears. Knee Surg Sports Traumatol Arthrosc. 23(1):171-7, 2015
                          3. Boutin RD et al: Magnetic resonance imaging of the postoperative meniscus: resection, repair, and replacement. Magn Reson Imaging Clin N Am. 22(4):517-55, 2014
                          4. Magee T: Accuracy of 3-Tesla MR and MR arthrography in diagnosis of meniscal retear in the post-operative knee. Skeletal Radiol. 43(8):1057-64, 2014
                          5. Mohankumar R et al: Pitfalls and pearls in MRI of the knee. AJR Am J Roentgenol. 203(3):516-30, 2014
                          6. Barber BR et al: Meniscal injuries and imaging the postoperative meniscus. Radiol Clin North Am. 51(3):371-91, 2013
                          7. Gnannt R et al: MR imaging of the postoperative knee. J Magn Reson Imaging. 34(5):1007-21, 2011
                          8. Sanders TG: Imaging of the postoperative knee. Semin Musculoskelet Radiol. 15(4):383-407, 2011
                          9. Lee DH et al: Midterm outcomes after meniscal allograft transplantation: comparison of cases with extrusion versus without extrusion. Am J Sports Med. 38(2):247-54, 2010
                          10. Cardello P et al: Retears of postoperative knee meniscus: findings on magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA) by using low and high field magnets. Skeletal Radiol. 38(2):149-56, 2009
                          11. Miao Y et al: MRI signal changes in completely healed meniscus confirmed by second-look arthroscopy after meniscal repair with bioabsorbable arrows. Knee Surg Sports Traumatol Arthrosc. 17(6):622-30, 2009
                          12. Vance K et al: Magnetic resonance imaging of the postoperative meniscus. Arthroscopy. 25(5):522-30, 2009
                          13. Ciliz D et al: Evaluation of postoperative menisci with MR arthrography and routine conventional MRI. Clin Imaging. 32(3):212-9, 2008
                          14. Lee DH et al: Evaluation of meniscus allograft transplantation with serial magnetic resonance imaging during the first postoperative year: focus on graft extrusion. Arthroscopy. 24(10):1115-21, 2008
                          15. MacDessi SJ et al: Subchondral fracture following arthroscopic knee surgery. A series of eight cases. J Bone Joint Surg Am. 90(5):1007-12, 2008
                          16. Pujol N et al: Meniscal healing after meniscal repair: a CT arthrography assessment. Am J Sports Med. 36(8):1489-95, 2008
                          17. Genovese E et al: Follow-up of collagen meniscus implants by MRI. Radiol Med. 112(7):1036-48, 2007
                          18. Gopez AG et al: MR imaging of the postoperative meniscus: repair, resection, and replacement. Semin Musculoskelet Radiol. 10(3):229-40, 2006
                          19. Muscolo DL et al: Medial meniscal tears and spontaneous osteonecrosis of the knee. Arthroscopy. 22(4):457-60, 2006
                          20. Mustonen AO et al: MRI of menisci repaired with bioabsorbable arrows. Skeletal Radiol. 35(7):515-21, 2006
                          21. De Smet AA: MR imaging and MR arthrography for diagnosis of recurrent tears in the postoperative meniscus. Semin Musculoskelet Radiol. 9(2):116-24, 2005
                          22. Hantes ME et al: Evaluation of meniscal repair with serial magnetic resonance imaging: a comparative study between conventional MRI and indirect MR arthrography. Eur J Radiol. 2004 Jun;50(3):231-7. Erratum in: Eur J Radiol. 53(2):321, 2005
                          23. McCauley TR: MR imaging evaluation of the postoperative knee. Radiology. 234(1):53-61, 2005
                          24. Toms AP et al: Imaging the post-operative meniscus. Eur J Radiol. 54(2):189-98, 2005
                          25. Encalada I et al: Osteonecrosis after arthroscopic meniscectomy using radiofrequency. Arthroscopy. 20(6):632-6, 2004
                          26. DeFalco RA et al: Osteonecrosis of the knee after arthroscopic meniscectomy and chondroplasty: a case report and literature review. Am J Sports Med. 31(6):1013-6, 2003
                          27. Magee T et al: MR arthrography of postoperative knee: for which patients is it useful? Radiology. 229(1):159-63, 2003
                          28. Peters G et al: The current state of meniscal allograft transplantation and replacement. Knee. 10(1):19-31, 2003
                          29. Davis KW et al: MR imaging of the postoperative meniscus of the knee. Semin Musculoskelet Radiol. 6(1):35-45, 2002
                          30. Nakamura N et al: Subchondral microfracture of the knee without osteonecrosis after arthroscopic medial meniscectomy. Arthroscopy. 18(5):538-41, 2002
                          31. Recht MP et al: MR imaging of the postoperative knee: a pictorial essay. Radiographics. 22(4):765-74, 2002
                          32. Vande Berg BC et al: Spiral CT arthrography of the postoperative knee. Semin Musculoskelet Radiol. 6(1):47-55, 2002
                          33. Johnson TC et al: Osteonecrosis of the knee after arthroscopic surgery for meniscal tears and chondral lesions. Arthroscopy. 16(3):254-61, 2000
                          34. Totty WG et al: Imaging the postoperative meniscus. Magn Reson Imaging Clin N Am. 8(2):271-83, 2000
                          35. Lim PS et al: Repeat tear of postoperative meniscus: potential MR imaging signs. Radiology. 210(1):183-8, 1999
                          36. Janzen DL et al: Osteonecrosis after contact neodymium:yttrium aluminum garnet arthroscopic laser meniscectomy. AJR Am J Roentgenol. 169(3):855-8, 1997
                          37. Potter HG et al: MR imaging of meniscal allografts: correlation with clinical and arthroscopic outcomes. Radiology. 198(2):509-14, 1996
                          38. Patten RM et al: MRI of meniscal allografts. J Comput Assist Tomogr. 19(2):243-6, 1995
                          Related Anatomy
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                          Related Differential Diagnoses
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                          References
                          Tables

                          Tables

                          KEY FACTS

                          • Terminology

                            • Imaging

                              TERMINOLOGY

                              • Abbreviations

                                • Meniscal allograft transplantation (MAT)
                              • Synonyms

                                • Status post meniscectomy
                              • Definitions

                                • Previous meniscal repair or previous partial or complete meniscal resection (meniscectomy)
                                • Meniscal allograft: Transplantation of cadaveric meniscal tissue to replace severely torn native meniscus

                              IMAGING

                              • General Features

                                • CT Findings

                                  • MR Findings

                                    • Imaging Recommendations

                                      DIFFERENTIAL DIAGNOSIS

                                        PATHOLOGY

                                        • General Features

                                          CLINICAL ISSUES

                                          • Presentation

                                            • Natural History & Prognosis

                                              DIAGNOSTIC CHECKLIST

                                              • Consider

                                                • Image Interpretation Pearls

                                                  Selected References

                                                  1. Kim JM et al: Comparison of postoperative magnetic resonance imaging and second-look arthroscopy for evaluating meniscal allograft transplantation. Arthroscopy. 31(5):859-66, 2015
                                                  2. Popescu D et al: MR-arthrography assessment after repair of chronic meniscal tears. Knee Surg Sports Traumatol Arthrosc. 23(1):171-7, 2015
                                                  3. Boutin RD et al: Magnetic resonance imaging of the postoperative meniscus: resection, repair, and replacement. Magn Reson Imaging Clin N Am. 22(4):517-55, 2014
                                                  4. Magee T: Accuracy of 3-Tesla MR and MR arthrography in diagnosis of meniscal retear in the post-operative knee. Skeletal Radiol. 43(8):1057-64, 2014
                                                  5. Mohankumar R et al: Pitfalls and pearls in MRI of the knee. AJR Am J Roentgenol. 203(3):516-30, 2014
                                                  6. Barber BR et al: Meniscal injuries and imaging the postoperative meniscus. Radiol Clin North Am. 51(3):371-91, 2013
                                                  7. Gnannt R et al: MR imaging of the postoperative knee. J Magn Reson Imaging. 34(5):1007-21, 2011
                                                  8. Sanders TG: Imaging of the postoperative knee. Semin Musculoskelet Radiol. 15(4):383-407, 2011
                                                  9. Lee DH et al: Midterm outcomes after meniscal allograft transplantation: comparison of cases with extrusion versus without extrusion. Am J Sports Med. 38(2):247-54, 2010
                                                  10. Cardello P et al: Retears of postoperative knee meniscus: findings on magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA) by using low and high field magnets. Skeletal Radiol. 38(2):149-56, 2009
                                                  11. Miao Y et al: MRI signal changes in completely healed meniscus confirmed by second-look arthroscopy after meniscal repair with bioabsorbable arrows. Knee Surg Sports Traumatol Arthrosc. 17(6):622-30, 2009
                                                  12. Vance K et al: Magnetic resonance imaging of the postoperative meniscus. Arthroscopy. 25(5):522-30, 2009
                                                  13. Ciliz D et al: Evaluation of postoperative menisci with MR arthrography and routine conventional MRI. Clin Imaging. 32(3):212-9, 2008
                                                  14. Lee DH et al: Evaluation of meniscus allograft transplantation with serial magnetic resonance imaging during the first postoperative year: focus on graft extrusion. Arthroscopy. 24(10):1115-21, 2008
                                                  15. MacDessi SJ et al: Subchondral fracture following arthroscopic knee surgery. A series of eight cases. J Bone Joint Surg Am. 90(5):1007-12, 2008
                                                  16. Pujol N et al: Meniscal healing after meniscal repair: a CT arthrography assessment. Am J Sports Med. 36(8):1489-95, 2008
                                                  17. Genovese E et al: Follow-up of collagen meniscus implants by MRI. Radiol Med. 112(7):1036-48, 2007
                                                  18. Gopez AG et al: MR imaging of the postoperative meniscus: repair, resection, and replacement. Semin Musculoskelet Radiol. 10(3):229-40, 2006
                                                  19. Muscolo DL et al: Medial meniscal tears and spontaneous osteonecrosis of the knee. Arthroscopy. 22(4):457-60, 2006
                                                  20. Mustonen AO et al: MRI of menisci repaired with bioabsorbable arrows. Skeletal Radiol. 35(7):515-21, 2006
                                                  21. De Smet AA: MR imaging and MR arthrography for diagnosis of recurrent tears in the postoperative meniscus. Semin Musculoskelet Radiol. 9(2):116-24, 2005
                                                  22. Hantes ME et al: Evaluation of meniscal repair with serial magnetic resonance imaging: a comparative study between conventional MRI and indirect MR arthrography. Eur J Radiol. 2004 Jun;50(3):231-7. Erratum in: Eur J Radiol. 53(2):321, 2005
                                                  23. McCauley TR: MR imaging evaluation of the postoperative knee. Radiology. 234(1):53-61, 2005
                                                  24. Toms AP et al: Imaging the post-operative meniscus. Eur J Radiol. 54(2):189-98, 2005
                                                  25. Encalada I et al: Osteonecrosis after arthroscopic meniscectomy using radiofrequency. Arthroscopy. 20(6):632-6, 2004
                                                  26. DeFalco RA et al: Osteonecrosis of the knee after arthroscopic meniscectomy and chondroplasty: a case report and literature review. Am J Sports Med. 31(6):1013-6, 2003
                                                  27. Magee T et al: MR arthrography of postoperative knee: for which patients is it useful? Radiology. 229(1):159-63, 2003
                                                  28. Peters G et al: The current state of meniscal allograft transplantation and replacement. Knee. 10(1):19-31, 2003
                                                  29. Davis KW et al: MR imaging of the postoperative meniscus of the knee. Semin Musculoskelet Radiol. 6(1):35-45, 2002
                                                  30. Nakamura N et al: Subchondral microfracture of the knee without osteonecrosis after arthroscopic medial meniscectomy. Arthroscopy. 18(5):538-41, 2002
                                                  31. Recht MP et al: MR imaging of the postoperative knee: a pictorial essay. Radiographics. 22(4):765-74, 2002
                                                  32. Vande Berg BC et al: Spiral CT arthrography of the postoperative knee. Semin Musculoskelet Radiol. 6(1):47-55, 2002
                                                  33. Johnson TC et al: Osteonecrosis of the knee after arthroscopic surgery for meniscal tears and chondral lesions. Arthroscopy. 16(3):254-61, 2000
                                                  34. Totty WG et al: Imaging the postoperative meniscus. Magn Reson Imaging Clin N Am. 8(2):271-83, 2000
                                                  35. Lim PS et al: Repeat tear of postoperative meniscus: potential MR imaging signs. Radiology. 210(1):183-8, 1999
                                                  36. Janzen DL et al: Osteonecrosis after contact neodymium:yttrium aluminum garnet arthroscopic laser meniscectomy. AJR Am J Roentgenol. 169(3):855-8, 1997
                                                  37. Potter HG et al: MR imaging of meniscal allografts: correlation with clinical and arthroscopic outcomes. Radiology. 198(2):509-14, 1996
                                                  38. Patten RM et al: MRI of meniscal allografts. J Comput Assist Tomogr. 19(2):243-6, 1995