Stress fracture of the sacrum

Stress fractures are common among military recruits, ath-letes, joggers, or dancers, where they occur predominantly in the lower extremities. The lumbar spine and the pelvis can also be affected To our knowledge, this report describes the first case of fatigue-type stress fracture occurring in the sacrum. CASE REPORT The patient, a 40-year-old man who was running 80 km weekly, complained of the sudden onset of pain in the right lumbosacral area during his training. The pain did not disappear, despite a dramatic reduction in his training. Physical examination was normal except for pain on move-ment of the right hip. A technetium methylene diphosphonate bone scan dis-closed increased activity in the upper portion of the right