Correlation between grade of meniscal laceration on MRI and meniscal subluxation

WANG Xi-qiang; LIU Shi-en; GUO Yong-cun; ZHOU Zhong-li

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Journal of China Clinic Medical Imaging ›› 2007, Vol. 18 ›› Issue (9) : 657-660.

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Correlation between grade of meniscal laceration on MRI and meniscal subluxation

WANG Xi-qiang1, LIU Shi-en2, GUO Yong-cun3, ZHOU Zhong-li4

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Abstract

Objective: To explore the correlation between the grade of meniscal laceration and meniscal subluxation on MRI. Methods: MRI of 420 cases with symptoms in the knees were evaluated retrospectively, classifying the degree of the injury and measuring the width of meniscal protrusion, and analyzing statistically the correlation between the grade of meniscal injury and meniscal subluxation. Results: Among the 420 cases, including 840 lateral and medial menisci, 128 cases were graded as 0 degree, 4 of them associated with meniscal subluxation; 258 cases were graded as I degree, 44 of them associated with meniscal subluxation; 149 cases were graded as II degree, 25 of them with meniscal subluxation; 305 cases were graded as III degree, 81 of them with meniscal subluxation. Between the laceration on MRI and meniscal subluxation existed dependability(χ2＝34.074, P<0.05). I～III degree was higher than 0 degree; there was no obvious difference between I and II degree; III degree was higher than I and II degree. Among the 154 cases of meniscal subluxation, 98 cases were medial meniscus, 56 cases were lateral meniscus, the difference in incidence have statistical significance. Conclusion: There is high dependability between the classification of laceration on MRI and meniscal subluxation.

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menisci / tibial / joint diseases / magnetic resonance imaging

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WANG Xi-qiang;LIU Shi-en;GUO Yong-cun;ZHOU Zhong-li. Correlation between grade of meniscal laceration on MRI and meniscal subluxation[J]. Journal of China Clinic Medical Imaging. 2007, 18(9): 657-660