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KMID : 1195520100030010015
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Journal of Korean Orthopaedic Ultrasound Society
2010 Volume.3 No. 1 p.15 ~ p.20
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Correlation of the Ultrasonography with the Physical Examinations and Simple Radiography in Measurement of Amount of Effusion of the Knee Joint
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Kim Jung-Man
Ra Ki-Hang
Nam Ho-Jin
Lee Jung-Woo
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Abstract
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Purpose: The goal of this study is to find out how useful ultrasonography is in measuring amount of effusion within the knee joint in comparison with physical examination and simple radiography.
Materials and Methods: We evaluated total 60 cases which were suspicious for joint effusion. Average age was 61.3 years. The group was consisted of 22 males and 38 females, and 24 obese people and 36 non-obese people. Stroke test and patella floating test were done as physical examination. Amount of joint effusion was classified into 3 groups in simple lateral radiographic view and ultrasonography was used for recheck-up.
Results: 39 cases were found positive in stroke test, and patella floating was shown in 20 cases. In simple lateral radiographic view, 47 cases of grade I, 7 cases of grade II and 3 cases of grade III were checked. Average 7.67 ±2.90 mm amount of effusion was checked by ultrasonography. Amount of fluid in stroke test, patella floating test and simple lateral radiographic view showed close correlation with ultrasonography. Gender did not seem to affect physical examination, but strong correlation was found in female in simple radiography. Obese group showed closer relationship with all 3 exams compared with non-obese group. Physical examination was relatively effective with nonobese roup, but not with obese group. And it was not easy to measure the amount of fluid with simple radiographic iew, but we could obtain objective data from ultrasonography by measuring the amount of effusion dynamically.
Conclusion: We concluded that more objective data was obtained with ultrasonography in comparison with physical examinations and simple radiography in the aspect of measuring amount of joint fluid.
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KEYWORD
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Knee, Synovial fluid, Effusion, Ultrasonography
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