ĐẶC ĐIỂM HÌNH ẢNH THOÁI HÓA KHỚP GỐI TRÊN MRI 3.0 TESLA TẠI BỆNH VIỆN VIỆT ĐỨC

Abstract

Objective: To study the imaging characteristics of knee osteoarthritis on 3 Tesla MRI (3T MRI) at Viet-Duc Hospital. Subjects and Methods: A cross-sectional descriptive study was conducted on patients with knee osteoarthritis diagnosed on X-ray who underwent 3T MRI at Viet-Duc Hospital from March 2024 to August 2024. Results: A total of 52 patients (43 females) were included, with an average age of 61.6 ± 7.5 years (range: 33–76 years). The right knee was affected in 20 patients (38.5%) and the left knee in 32 patients (61.5%) (p=0.127). On X-ray, most osteoarthritis cases were grade II (21 patients, 41%) and grade III (22 patients, 42%), while grade I was seen in 9 patients (17%). On 3T MRI, medial meniscus lesions were more common (46 patients, 88.5%) than lateral meniscus lesions (16 patients, 30.8%) (p<0.05). Medial meniscus tears were mostly complex tears (24 patients, 46.2%), root tears (16 patients, 30.8%), and meniscal truncation (12 patients, 23.1%). Lateral meniscus tears were mostly horizontal tears (7 patients, 13.5%) and complex tears (5 patients, 9.6%). Anterior cruciate ligament (ACL) rupture was found in 10 patients (19.2%) and posterior cruciate ligament (PCL) rupture in 1 patient (1.9%). Common periarticular synovial cysts included Baker's cysts (21 patients, 40.4%) and superior tibiofibular joint cysts (20 patients, 38.5%). Conclusion: 3T MRI is a preferred imaging modality for detecting knee osteoarthritis-related lesions.