The Relationship between Measurement of 1.5 T MRI and the Diagnosis and Classification of Disposable Lateral Dislocation of Patella

doi:10.7517/issn.1674-0475.190926

Abstract

Abstract: This study analyzed the relationship between TT-TG, PH, SA, SD measured by MRI and the diagnosis and classification of TLPD patients. Fifty TLPD patients admitted to our hospital from January 2018 to February 2019 were taken as the control group and 50 normal knee joints as the control group. TT-TG, PH, SA and SD levels were measured by 1.5 T MR imaging, and the diagnostic value of the indices used alone and in combination was analyzed, and the relationship between the indices and clinical classification was analyzed. The results show:the levels of TT-TG, PH and SA in the observation group were significantly higher than those in the control group (P<0.05), and the SD level in the observation group was significantly lower than that in the control group (P<0.05). The combined application of TT-TG, PH, SA and SD indicators could significantly improve the sensitivity, specificity and accuracy of TLPD diagnosis (P<0.05). The combined use of AUC with the four indicators was significantly higher than that of individual use, and the difference was statistically significant (P<0.05); with the deterioration of patients'Dejour classification, TT-TG, PH and SA levels were significantly increased, SD levels were significantly reduced, and the difference was statistically significant (P<0.05); TT-TG, PH, SA and SD were influencing the clinical manifestations of TLPD patients. The independent influencing factors of typing (P<0.05). This study demonstrated that measuring TT-TG, PH, SA and SD with 1.5 T MRI can effectively improve the clinical diagnostic value of TLPD patients, and TT-TG, PH, SA and SD are independent influencing factors of clinical classification.

Key words: tibial tuberosity-trocholear distance (TT-TG), patellar height(PH), sulcus angle(SA), sulcus depth(SD), transient lateral patellar dislocation (TLPD)

CLC Number:

HU Xiaoming, YAO Jun. The Relationship between Measurement of 1.5 T MRI and the Diagnosis and Classification of Disposable Lateral Dislocation of Patella[J]. Imaging Science and Photochemistry, 2020, 38(2): 328-332.

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