A Case of S1 Radiculopathy in Sacral Insufficiency Fracture without Fracture Line

ABSTRACT

Sacral insufficiency fractures are not uncommon cause of low back pain in elderly women with osteoporosis. The characteristics of sacral insufficiency fractures may not be related with neurological compromise. Their associated rate of neurological complication has been reported approximately 2%. The neurological complication, which is due to stretching or compression of nerve roots, is related with bony displacement. We present the case of an elderly women who developed S1 radiculopathy secondary to sacral insufficiency fracture with no evidence of fracture line.