@article{ref1,
title="Subchondral contusion of the knee caused by axial loading from dashboard impact: detection by magnetic resonance imaging",
journal="Journal of the Southern Orthopaedic Association",
year="2000",
author="Bealle, D. and Johnson, D. L.",
volume="9",
number="1",
pages="13-18",
abstract="We studied the occurrence of &quot;bone bruises&quot; of the knee resulting from dashboard impaction and detected by magnetic resonance imaging (MRI). We chose 21 knees of 20 front seat occupants in head-on motor vehicle collisions. To ensure all knees had received a significant axial load, patients selected had ipsilateral posterior hip dislocations and/or posterior wall acetabular fractures. Anteroposterior and lateral knee radiographs were negative for fracture in all cases. T1-weighted axial and sagittal MRI of each knee with a 1.5-T magnetron scanner revealed signal changes consistent with subchondral microfracture or bone bruise in 8 of the 21 knees. Previous cadaveric, animal, and MRI studies have suggested that such changes may be precursors of posttraumatic osteoarthritis. With the increasing incidence of serious lower extremity injury as a result of motor vehicle accidents, these occult injuries may significantly affect individuals and society.<p /><p>Language: en</p>",
language="en",
issn="1059-1052",
doi="",
url="http://dx.doi.org/"
}