The Journal of Bone and Joint Surgery 80:1361-1364 (1998)
© 1998 The Journal of Bone and Joint Surgery, Inc.
The Use of Ultrasonography in the Diagnosis of Occult Fracture of the Radial Neck. A Case Report*
RICHARD D. LAZAR, M.D. ,
PETER M. WATERS, M.D. and
DIEGO JARAMILLO, M.D. , BOSTON, MASSACHUSETTS
Investigation performed at Children's Hospital, Boston
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Introduction
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Fractures of the radial neck have been reported to account for approximately 6 per cent of all fractures about the elbow in children; in the combined series reported by Wilkins et al., for example, 289 of 4490 fractures about the elbow in children involved the radial neck10. Fractures about the elbow in skeletally immature patients are often difficult to assess on plain radiographs because of the absence of, or variations in the appearance of, the secondary centers of ossification of the distal aspect of the humerus and the proximal aspects of the radius and olecranon. Clinical examination may be inconclusive because of diffuse swelling, the absence of localized tenderness, and the inability of a young patient to identify the site of pain appropriately.
Additional studies, such as stress radiography, arthrography1,4, and magnetic resonance imaging3, often are needed in order to diagnose the injury accurately. However, these procedures . . . [Full Text of this Article]

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