Abstract：Objective To analyze the diagnostic value of magnetic resonance imaging (MRI), magnetic resonance arthrography (MRAr) and CT in glenoid labral injuries with or without fractures. Methods Thirty-four cases of glenoid labrum injury with or without fracture were retrospectively analyzed, and MRI, MRAr and CT images were collected. Arthroscopic surgery was performed to confirm whether Bankart injury, superior labrum anterior and posterior (SLAP) injury and fracture were combined. The diagnostic value of MRI, MRAr and CT signs for different types of labral injury was analyzed, the sensitivity, specificity and accuracy of which were evaluated and compared with the surgical results. Results The results of all patients, 34 (100%) had Bankart lesions: conventional MRI had a diagnostic sensitivity of 94.12% and an accuracy of 94.12%. MRAr had a diagnostic sensitivity of 97.06% and an accuracy of 97.06%. Thirty patients (88.24%) had SLAP injury: conventional MRI had a sensitivity of 53.33%, a specificity of 66.67%, and an accuracy of 58.82%. MRAr had a sensitivity of 93.33%, specificity of 66.67%, and accuracy of 94.12%. Seventeen patients (50.00%) were complicated with fracture. The sensitivity of MRAr and MRI was 52.94%. The sensitivity and specificity of CT in the diagnosis of fracture were 94.12% and 94.44%, respectively. Conclusions MRAr is superior to conventional MRI in the diagnosis of SLAP injury, and MRAr combined with CT can improve the diagnostic integrity of shoulder labrum injury with fracture and reduce the incidence of missed diagnosis.
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2023, Vol. 34 
