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Scope and Limitations of Ultrasonography in the Documentation of Diaphyseal Long Bone Practure an Experimental Study
Ultrasonographic studies were performed on cadaveric goot’s long bones placed in water bath using 7.5 MHz linear array transducer. The fractured bones were arranged in several malalignment and the defect was revealed as an interruption, step-off, and kinking of the cortical reflection of echo or a dorsal band of echoes confined to the region of the fracture. The best result produced when the transducer was positioned parallet to the long bone surface. It may be concluded that in an experimental setting and under standardized condition, high resolution transducers permit the examiner to detec cortical discontinuties of 1 mm or more and cortical step-off of 1 mm or more. The contour of cortical reflection assists documentation of malaligment eventhough it is not correlated with degree of angulation
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