The Diagnostic Value of MRI Direct Signs for Anterior Cruciate Ligament Injury
Objective To investigate the diagnostic value of MRI direct signs for anterior cruciate ligament(ACL)injuries.Methods With the retrospective analysis of clinical data of 90 patients with unilateral knee joint injury admitted to the hospital from February 2022 to October 2023,MRI and arthroscopy examinations were performed sequentially for all patients.With arthroscopic examination results as the gold standard,the sensitivity,specificity,accuracy,and consistency of MRI diagnosis of ACL injuries with arthroscopic examination results were analyzed.In addition,the sensitivity,specificity and accuracy of five MRI direct signs(ACL edema thickening,disappearance,atrophy thinning,abnormal walking and discontinuity)in diagnosing ACL injury were analyzed.Results Among the 90 patients with unilateral knee injury,63 patients were diagnosed as ACL injury by arthroscopy,and 27 patients with normal ACL.With the use of arthroscopic examination results as the gold standard,the sensitivity,specificity,and accuracy of MRI in diagnosing ACL injuries were 95.24%,81.48%,and 91.11%,respectively.The consistency between MRI diagnosis of ACL injury and arthroscopic examination results was excellent(Kappa=0.784).Among the direct signs of MRI,ACL edema thickening have the highest sensitivity in diagnosing ACL injury(93.65%),followed by ACL discontinuity(90.48%)and abnormal walking(88.89%);The accuracy of diagnosing ACL injuries through ACL edema thickening,discontinuity,and abnormal walking was relatively high(all greater than 90%);The specificity of the five MRI direct signs in the diagnosis of ACL injury was high(all greater than 90%).Conclusion MRI direct signs have high diagnostic value for ACL injuries,among which ACL edema thickening,discontinuity,and abnormal walking have higher diagnostic value.
万方数据
维普
