Diagnosis and Current Trends of Medial Meniscus Posterior Root Tear

Young-Soo Shin; Dae-Hee Lee; Hyun-Min Lee; Seung-Beom Han

doi:10.4055/jkoa.2015.50.5.353

Journal List > J Korean Orthop Assoc > v.50(5) > 1013393

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Shin, Lee, Lee, and Han: Diagnosis and Current Trends of Medial Meniscus Posterior Root Tear

Symposium

Medial Meniscus Posterior Root Tear

Journal of the Korean Orthopaedic Association 2015; 50(5): 353-358.

Published online: 23 October 2015

DOI: https://doi.org/10.4055/jkoa.2015.50.5.353

Diagnosis and Current Trends of Medial Meniscus Posterior Root Tear

Young-Soo Shin, M.D., Dae-Hee Lee, M.D.^*, Hyun-Min Lee, M.D.^†, Seung-Beom Han, M.D.^†

Department of Orthopaedic Surgery, Ewha Womans University School of Medicine, Seoul, Korea.

^*Department of Orthopaedic Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea.

^†Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.

Correspondence to: Seung-Beom Han, M.D. Department of Orthopaedic Surgery, Korea University Anam Hospital, 73 Inchon-ro, Seongbuk-gu, Seoul 02841, Korea. TEL: +82-2-920-5692, FAX: +82-2-924-2471, oshan@korea.ac.kr

Received 2 July 2015 Revised 24 July 2015 Accepted 27 July 2015

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Medial meniscal root tears with extrusion result in the loss of transmission of circumferential hoop stresses, leading to significantly increased tibiofemoral contact pressure and changes in knee biomechanics and kinematics. Therefore, medial meniscal root tears have attracted attention in recent years with regard to their early diagnosis. With the remarkable development of magnetic resonance imaging and arthroscopy, early diagnosis of medial meniscal root tears is on the rise. This report includes diagnosis and current trends of medial meniscal root tears.

Keywords: medial meniscus, root tear, magnetic resonance imaging

Figures and Tables

Figure 1

Coronal T2-weighted image showing medial meniscus extrusion with left arthroscopic panel.

Figure 2

Axial image showing a high signal in the region of the posterior horn with a radial root tear (arrow).

Figure 3

Sagittal image showing a ghost sign (arrow).

Table 1

Clinical Diagnosis and MRI Evaluation of Medial Meniscus Root Tears

MRI, magnetic resonance imaging; MCL, medial collateral ligament.

Notes

^{CONFLICTS OF INTEREST} The authors have nothing to disclose.

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