Asymmetric Closure of Ischiopubic Synchondrosis in Pediatric Patients: Correlation with Foot Dominance
Andreas M. Herneth1,2,
Marcel O. Philipp2,
Michael L. Pretterklieber3,
Csilla Balassy2,
Friedrich W. Winkelbauer2 and
Christopher F. Beaulieu1
1 Department of Radiology, Stanford University School of Medicine, Medical
Center S056, Stanford, CA 94305-5105.
2 Department of Radiology, University of Vienna, Austria, Wahringer Gurtel
18-20, Vienna A-1090, Austria.
3 Institute of Anatomy, University of Vienna, Austria, Wahringer Strasse 13,
Vienna A-1090, Austria.

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Fig. 1A. 11-year-old left-footed boy with unilateral enlarged right
ischiopubic synchondrosis. Radiograph of pelvis shows radiolucent enlargement
of right ischiopubic synchondrosis (arrow), indicating delayed
closure of this temporary joint, which is presumably due to asymmetrically
applied mechanical strain to pelvis during certain athletic activities.
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Fig. 1B. 11-year-old left-footed boy with unilateral enlarged right
ischiopubic synchondrosis. Radiograph of pelvis shows magnification of right
enlarged ischiopubic synchondrosis (arrows).
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Fig. 1C. 11-year-old left-footed boy with unilateral enlarged right
ischiopubic synchondrosis. Radiograph of pelvis shows magnification of
unenlarged, ossified left ischiopubic synchondrosis (arrows).
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Fig. 2A. 9-year-old right-footed girl with bilateral enlarged
ischiopubic synchondroses. Radiograph (anteroposterior view) of pelvis shows
radiolucent enlargement of both ischiopubic synchondroses (arrows).
Note tumorlike appearance of this anatomic structure, which is presumably
physiologic reaction to mechanical stress.
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Fig. 2B. 9-year-old right-footed girl with bilateral enlarged
ischiopubic synchondroses. Axial T1-weighted spin-echo image (TR/TE, 525/25)
shows enlargement of ischiopubic synchondroses (arrows) before
ossification of this temporary joint.
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