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KMID : 1195520110040010007
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Journal of Korean Orthopaedic Ultrasound Society
2011 Volume.4 No. 1 p.7 ~ p.14
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Ultrasonographic Measurement of Articular Cartilage Thickness of Medial Femoral Condyle in Knee Osteoarthritis
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Kim Jung-Man
Kim Tae-Hyung
Im Dong-Sun
Kang Min-Gu
Lee Kyu-Jo
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Abstract
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Purpose: The purpose of this study was to analyze the correlation between the medial joint space on weight bearing simple X-ray and the ultrasonographic articular cartilage thickness.
Materials and Methods: The articular cartilage thickness of 91 osteoarthritic knees of 73 patients were measured with weight bearing simple X-ray and ultrasonography between June 2010 and September 2010. Male were 13 and female were 60. Right knees were 35, left knees were 20 and bilateral involvements were 18. Medial joint spaces on X-ray were measured in full extension view and 45。PA(Rosenberg) view. Femoral cartilage thicknesses at and those at the point between the middle 1/3 and posterior 1/3 area were measured by ultrasonography, that were scanned coronally at 30˚flexion and 130˚flexion respectively. The results were analyzed statistically by Pearson correlation test and Bland-Altman plot test.
Results: Medial joint spaces measured in full extension view and femoral articular cartilage thicknesses at the point between the anterior 1/3 and middle 1/3 area measured with sonography were statistically correlated and medial joint spaces measured in 45˚PA view and those at the point between the middle 1/3 and posterior 1/3 area measured with sonography were also correlated (P<0.05, SD ±2).
Conclusion: The measurement of articular cartilage thicknesses by the ultrasonography was easy even in the patient who are unable to take weight bearing view and was thought to be a useful diagnostic and follow up method to examine the degenerative change in addition to simple radiographic examination in the knee osteoarthritis.
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KEYWORD
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Femoral cartilage, Osteoarthritis, Thickness, Ultrasonography
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