Comparison of sonography and MRI in the evaluation of stability of capitellar osteochondritis dissecans

• Published in: Journal of clinical ultrasound 2018-05, Vol.46 (4), p.247-252
• Main Authors: Yoshizuka, Masaaki, Sunagawa, Toru, Nakashima, Yuko, Shinomiya, Rikuo, Masuda, Tetsuo, Makitsubo, Manami, Adachi, Nobuo
• Format: Article
• Language: English
• Subjects: Adolescent; Biocompatibility; capitellar osteochondritis dissecans; Cartilage; Cartilage (articular); Child; Diagnostic systems; Elbow; Elbow Joint - diagnostic imaging; Elbow Joint - surgery; Fragmentation; Humans; Joint Instability - diagnostic imaging; Joint Instability - etiology; Joint Instability - surgery; Knee; Lesions; Magnetic Resonance Imaging; Male; musculoskeletal system; NMR; Nuclear magnetic resonance; Osteochondritis; Osteochondritis dissecans; Osteochondritis Dissecans - complications; Osteochondritis Dissecans - diagnostic imaging; Osteochondritis Dissecans - surgery; Patients; Preoperative Care - methods; Retrospective Studies; Sensitivity and Specificity; Stability; Stability analysis; Surgery; Surgical instruments; Ultrasonic imaging; Ultrasonography; Ultrasound
• ISSN: 0091-2751; 1097-0096
• DOI: 10.1002/jcu.22563

Purpose To compare the diagnostic accuracies of ultrasonography (US) and magnetic resonance imaging (MRI) with intraoperative capitellar osteochondritis dissecans (COCD) fragment stability findings. Methods Patients whose International Cartilage Repair Society (ICRS) osteochondritis dissecans (OCD) classifications were I/II (stable) or III (unstable) were included. Patients underwent preoperative US and MRI. On US, lesions were evaluated as unstable when irregular contours of the chondral surface were observed. On MRI, lesions were evaluated as unstable when articular bone irregularity, a T2 high signal intensity interface, or a high signal intensity line through the articular cartilage was observed. Using the surgical assessment as the gold standard, accuracies of fragment stability diagnoses were calculated for US and MRI. Results Thirty‐four patients with OCD classifications of I/II (stable) or III (unstable) were included. Twenty‐four patients (stable: 12, unstable: 12) underwent preoperative US; 22 (stable: 11, unstable: 11) underwent preoperative MRI. Preoperative US and MRI stability assessments correctly matched intraoperative fragment findings in 23 of 24 patients and 16 of 22 patients, respectively. US criteria in this study achieved superior accuracy compared with MRI criteria (96% vs. 73%; P