Abstract
BackgroundThis study aimed to evaluate the structural changes of temporomandibular joint immediately after condylar fractures with magnetic resonance imaging (MRI).MethodWe evaluated 34 subjects of condylar fractures with MRI. The position, shape, and signal intensity of the condyle, disc, and retrodiscal tissue were analyzed with MR images.ResultsImmediately after trauma, the disc was displaced with the fractured segment in almost all cases. And, the changes of signal intensity at the retrodiscal tissue were found but less related to the degree of fracture displacement. And, the high signals were observed almost at all fractured joint spaces and even at some contralateral joints.ConclusionsThe displaced disc as well as the increased signal intensity of the joint space, condylar head, and retrodiscal tissue demands more attention to prevent the possible sequela of joint.
Highlights
This study aimed to evaluate the structural changes of temporomandibular joint immediately after condylar fractures with magnetic resonance imaging (MRI)
In this study, we took MRI images for the condylar fractures immediately after the traumatic injuries and analyzed them to evaluate the conditions of temporomandibular joint (TMJ), which were injured and partly deformed by trauma with the fractured displacement of mandibular condyle
When we analyze the correlation between the position of fractured condylar segments and the displacement of the condylar head, the results were somewhat different from our expectation
Summary
This study aimed to evaluate the structural changes of temporomandibular joint immediately after condylar fractures with magnetic resonance imaging (MRI). Conclusions: The displaced disc as well as the increased signal intensity of the joint space, condylar head, and retrodiscal tissue demands more attention to prevent the possible sequela of joint. In this study, we took MRI images for the condylar fractures immediately after the traumatic injuries and analyzed them to evaluate the conditions of TMJ, which were injured and partly deformed by trauma with the fractured displacement of mandibular condyle. This allowed us to understand the changed nature of traumatic
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