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KMID : 0828620060100010077
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Journal of Korean Arthroscopy Society
2006 Volume.10 No. 1 p.77 ~ p.82
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The Clinical Analysis of lateral Discoid Meniscus In Adults Over 40 years old
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Lim Hong-Chul
Jung Hyo-Sub
Noh Kyoung-Sun
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Abstract
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Purpose:The purpose of this study was to analyze the clinical results of symptomatic lateral discoid meniscus found in adults over 40 years old.
Materials and Methods:From March 1994 to March 2004, 53 cases treated for lateral discoid meniscus in 48 patients aged over 40 years with the mean age 48.4(40~62) who were followed up more than 1 year, were analyzed by physical findings, simple X-ray, MRI and arthroscopic exam.
Results:Most of the cases (42 cases, 79.2%) had symptoms for less than 1 year duration. 26 cases(49.1 %) out of 53 had trauma history. Simple radiologic evaluation showed that lateral condylar abnormality such as the flattening of lateral femoral condyle, marginal osteophytes, and subchondral sclerosis was seen in 37cases(69.8%) . Also medial condyle showed degenerative changes in 16 cases (30.2%). Tear of discoid meniscus in 45 cases(84.9%) were examined by arthroscope and tear was not detected in 8 cases (15.1%). Type of tear was complex(18 cases), longitudinal(12 cases), horizontal(11 cases) and transverse(4 cases). Concomitant medial meniscal rupture was found in 7 cases(13.2%). The simple procedure done was reshaping(46 cases), subtotal resection(5 cases), total resection(1 case) and meniscal repair after reshaping in 6 cases, and arthroplasty was performed after arthroscopic examination in 1 case.
Conclusions:Onset of symptom in adult lateral discoid meniscus is usually traumatic in origin. Most cases showed radiologic abnormality such as degenerative change in lateral condyles as well as medial condyles and the results of preservative surgical treatment was the most preferred option in most patients.
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KEYWORD
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Discoid meniscus, Knee joint, Adult
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