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the New
Pediatric Imaging Website This
site is devoted to Parents of Children cared for at Children's
Healthcare of Atlanta at Egleston and the Residents of Emory
University Department of Radiology
17 year old girl
with acute onset of hip pain after cheerleading answer
Acute avulsion of
the right ischial apophysis. The hamstrings and
adductor magnus arise from the ischial apophysis, and it is
the last apophysis to unite (at approximately age 25). The
mechanism of injury is a vigorous hamstring contraction with
the hip flexed and the knee extended.
In runners, this injury occurs most often in hurdlers. The
athlete complains of pain at the ischial tuberosity and
difficulty sitting. There may be a pronounced limp.
Radiographs demonstrate a displaced fragment of the ischial
tuberosity (arrows); displacement of the avulsed fragment
greater than 2 cm may require surgical fixation.
