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KMID : 1195520090020010007
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Journal of Korean Orthopaedic Ultrasound Society
2009 Volume.2 No. 1 p.7 ~ p.12
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Diagnostic Value of Sonographic Medial Meniscal Extrusion
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Kim Jung-Man
Lee Dong-Yeob
Koh In-Jun
Lee Un-Bong
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Abstract
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Purpose: The purpose of this study was to correlate the degree of sonographic medial meniscal extrusion with MRI and arthroscopic findings.
Materials and Methods : Out of these 32 patients, with medial meniscal tear who went on arthroscopic surgery, 14 patients had the medial meniscal tear and 18 patients had both lateral and medial meniscal tear. The extent of meniscal extrusion without meniscal tear was assesed in 24 patients who did not show meniscal tear on MRI. The extent of meniscal extrusion was measured between tibial medial joint line (excluded osteophyte) and the outer margin of the medial meniscus. Kellgren-Lawrence grading scale was assessed in plain X-ray image and the location of lesion was assessed during arthroscopic surgery. We also measured the extent of meniscal extrusion on MRI and sonography respectively, and compared each other.
Results: There was significant difference between patients with medial meniscal tear and both lateral and medial meniscal tear, patients with medial meniscal tear, patients with both medial and lateral meniscal tear, patients without meniscal tear (P value<0.05).
Conclusion: The Meniscus tear must be considered when sonography shows the meniscal extrusion more than 5mm in length.
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KEYWORD
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Knee joint, Medial meniscus tear, Extrusion, Ultrasonograpy
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