OBJECTIVE. Sacral stress fractures in athletes are rare but important to re
cognize because the symptoms often mimic sciatica and can lead to delay in
diagnosis and treatment. The radiographic findings are characteristic and c
an facilitate early diagnosis and lead to appropriate treatment.
CONCLUSION. The clinical presentation of runners with sacral stress fractur
es can mimic disk disease. However, stress fractures in athletes, especiall
y long-distance runners, must be treated differently. The imaging character
istics appear as linear abnormal signal intensity paralleling the sacroilia
c joint on MR imaging and linear sclerosis with cortical disruption on CT.
Imaging with bone scintigraphy shows increased uptake that parallels the sa
croiliac joint.