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THE ROLE OF ULTRASOUND IN DIAGNOSING PRIMARY KNEE OSTEOARTHRITIS AT THAI NGUYEN NATIONAL HOSPITAL
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Abstract
Objective: Describe the imaging characteristics and analyze the role of ultrasound in the diagnosis and grading of primary knee osteoarthritis in research subjects at Thai Nguyen Central Hospital. Subjects and Research Methods: This is a descriptive, prospective, and retrospective study of patients from January 1, 2022, to August 30, 2024, diagnosed with primary knee osteoarthritis according to the American College of Rheumatology (ACR) 1991 criteria. All patients underwent complete X-ray, ultrasound, and MRI scans of the knee joint at the Center for Diagnostic Imaging and Interventional Radiology, Thai Nguyen Central Hospital. Result: 40 patients participated in the study with an average age of 71.18± 1.59 years old. The average similarity between clinical and ultrasound in diagnosing knee effusion and popliteal cyst with Kappa index is 0.375 (p<0.05) and 0.398 (p<0.05), respectively. Ultrasound detected an increasing rate of bone spurs, synovial thickening and cartilage damage according to the stages of joint damage on X-ray (p < 0.05; p < 0.05; p < 0.001). There is high agreement between ultrasound and magnetic resonance in diagnosing bone spurs (Kappa=0.643; p<0.05), cartilage damage (Kappa=0.931; p<0.001), and effusion (Kappa=0.643; p <0.05), popliteal cocoon (Kappa=0.844; p<0.001). Conclusion: Ultrasound has the ability to detect knee osteoarthritis lesions better than X-rays and clinical studies, but cannot evaluate some lesions detected only on magnetic resonance.
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Keywords
Primary knee osteoarthritis, ultrasound of the knee joint
References
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