Abstract: Objective To explore the clinical application of MRI in the diagnosis of ACL and PCL after knee joint injury. Methods From January 2015 to December 2016, 65 cases with cruciate ligament injury of knee joint were randomly divided into observation group (n=33) and control group (n=32). Patients in control group were performed CT scanning, while patients in observation group received MRI scanning. The application effects of the two groups were analyzed and compared. Results There was no significant difference of the data between MRI and anatomical method on cruciate ligament (P>0.05), while there was significant difference of the data between MRI and CT (P<0.05), the MRI data was closer to the result. The cruciate ligament diagnostic coincidence rate of MRI was significantly higher than CT examination, and the difference was statistically significant (P<0.05). Conclusion MRI measurement value can reflect the reality of the knee cruciate ligament anatomy. The diagnosis coincidence rate of MRI is superior to CT examination. MRI is the first choice for non-invasive examination in the diagnosis of knee ligament injury.

Key words: Knee joint injury, MRI examination, Cruciate ligament