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MR imaging of the anatomy of the anterior horn of the medial meniscus

(2017) ACTA RADIOLOGICA. 58(4). p.464-471
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Abstract
Background: In cadaveric and arthroscopic studies different insertion locations of the anterior horn of the medial meniscus (AHMM) have been described. Purpose: To investigate if the different insertion locations of the AHMM, as described in cadaveric studies, can be determined on magnetic resonance imaging (MRI). Material and Methods: MR images of 100 patients without meniscal tears on MRI were retrospectively evaluated. Two observers classified the AHMM insertion based on its position relative to the anterior tibial edge and the medial tibial spine. The association between AHMM insertion and tibial plateau slope, meniscal radial displacement, and anterior intermeniscal ligament (AIL) presence was investigated. Results: The AHMM inserted posterior to the anterior tibial edge in 93 knees and anterior to the tibial edge in seven knees (= type III). Of the 93 knees with AHMM insertion posterior to the anterior tibial edge, 63 inserted lateral to the medial tibial spine (= type I) and 30 medial (= type II). The AHMMs inserting anterior to the tibial edge had a significantly (P< 0.05) steeper anterior tibial plateau slope and a significantly (P< 0.05) higher presence of the AIL. No significant difference in radial displacement was observed between the three insertion types (P> 0.05). A strong inter-and intraobserver agreement was observed. Conclusion: Three different bony insertion locations of the AHMM, as described in cadaveric studies, could be identified on MRI. All AHMMs inserting anterior to the tibial edge displayed an AIL. Whether there is a clinical correlation with these insertion patterns remains unclear.
Keywords
anatomy, knee, magnetic resonance imaging, meniscus, CRUCIATE LIGAMENT TEAR, ALLOGRAFT TRANSPLANTATION, EXTRUSION, IMPLANT, KNEE

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Please use this url to cite or link to this publication:

Chicago
De Coninck, Tineke, Frederik Vanrietvelde, Patrick Seynaeve, Peter Verdonk, and Koenraad Verstraete. 2017. “MR Imaging of the Anatomy of the Anterior Horn of the Medial Meniscus.” Acta Radiologica 58 (4): 464–471.
APA
De Coninck, T., Vanrietvelde, F., Seynaeve, P., Verdonk, P., & Verstraete, K. (2017). MR imaging of the anatomy of the anterior horn of the medial meniscus. ACTA RADIOLOGICA, 58(4), 464–471.
Vancouver
1.
De Coninck T, Vanrietvelde F, Seynaeve P, Verdonk P, Verstraete K. MR imaging of the anatomy of the anterior horn of the medial meniscus. ACTA RADIOLOGICA. 2017;58(4):464–71.
MLA
De Coninck, Tineke et al. “MR Imaging of the Anatomy of the Anterior Horn of the Medial Meniscus.” ACTA RADIOLOGICA 58.4 (2017): 464–471. Print.
@article{8101527,
  abstract     = {Background: In cadaveric and arthroscopic studies different insertion locations of the anterior horn of the medial meniscus (AHMM) have been described. 
Purpose: To investigate if the different insertion locations of the AHMM, as described in cadaveric studies, can be determined on magnetic resonance imaging (MRI). 
Material and Methods: MR images of 100 patients without meniscal tears on MRI were retrospectively evaluated. Two observers classified the AHMM insertion based on its position relative to the anterior tibial edge and the medial tibial spine. The association between AHMM insertion and tibial plateau slope, meniscal radial displacement, and anterior intermeniscal ligament (AIL) presence was investigated. 
Results: The AHMM inserted posterior to the anterior tibial edge in 93 knees and anterior to the tibial edge in seven knees (= type III). Of the 93 knees with AHMM insertion posterior to the anterior tibial edge, 63 inserted lateral to the medial tibial spine (= type I) and 30 medial (= type II). The AHMMs inserting anterior to the tibial edge had a significantly (P< 0.05) steeper anterior tibial plateau slope and a significantly (P< 0.05) higher presence of the AIL. No significant difference in radial displacement was observed between the three insertion types (P> 0.05). A strong inter-and intraobserver agreement was observed. 
Conclusion: Three different bony insertion locations of the AHMM, as described in cadaveric studies, could be identified on MRI. All AHMMs inserting anterior to the tibial edge displayed an AIL. Whether there is a clinical correlation with these insertion patterns remains unclear.},
  author       = {De Coninck, Tineke and Vanrietvelde, Frederik and Seynaeve, Patrick and Verdonk, Peter and Verstraete, Koenraad},
  issn         = {0284-1851},
  journal      = {ACTA RADIOLOGICA},
  keywords     = {anatomy,knee,magnetic resonance imaging,meniscus,CRUCIATE LIGAMENT TEAR,ALLOGRAFT TRANSPLANTATION,EXTRUSION,IMPLANT,KNEE},
  language     = {eng},
  number       = {4},
  pages        = {464--471},
  title        = {MR imaging of the anatomy of the anterior horn of the medial meniscus},
  url          = {http://dx.doi.org/10.1177/0284185116661880},
  volume       = {58},
  year         = {2017},
}

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