MRI Findings and Diagnostic Value of Traumatic Knee Joint Recessive Fracture

doi:10.7517/issn.1674-0475.190816

Abstract

Abstract: To analyze the MRI findings and diagnostic value of traumatic knee joint recessive fractures, this study retrospectively analyzed 55 patients with traumatic knee joint recessive fractures from 138 January 2017 to December 2018 in our hospital. The clinical data were analyzed by MRI and multi-slice spiral CT. The surgical results were used as reference. The diagnostic value and specific imaging findings of MRI in traumatic knee joint fractures were analyzed. According to the operation, there were 34 cases of occult subcortical fractures, 14 cases of cortical fractures and 7 cases of osteochondral fractures in 55 patients with traumatic knee joint fracture. The coincidence rate of MRI was higher than that of multi-slice spiral CT (P<0.05). The sensitivity, specificity, and accuracy of the two imaging methods were compared, and the MRI was higher than the multi-slice spiral CT, the difference was statistically significant (P<0.05).The magnetic resonance imaging of the traumatic knee joint recessive fractures is as follows:there are a large number of map-like, grid-like or linear signal areas in the recessive subcortical fractures, the boundary is blurred but the osteoarticular surface is intact; the cortical fracture is interrupted by a low signal band, and there is a strong contrast in bone marrow high signal; osteochondral fractures are multi-level or continuous disruption. According to this, the magnetic resonance imaging findings of traumatic knee joint recessive fractures are characterized by diversity. It is not difficult to identify them carefully and can be used as a preferred diagnostic tool.

Key words: traumatic knee joint recessive fracture, magnetic resonance imaging, multi-slice spiral CT, diagnostic value

SUN Qiuyuan, LI Ji, NIU Yafeng. MRI Findings and Diagnostic Value of Traumatic Knee Joint Recessive Fracture[J]. Imaging Science and Photochemistry, 2020, 38(1): 138-143.

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