Hernias through the posterior abdominal wall are called lumbar hernias.
These hernias can occur spontaneously, after surgery, or after an injury, and
they can cause acute or chronic low-back pain. Their prevalence is not known.
In the orthopaedic literature, lumbar hernia has been reported after the
harvesting of a bone graft from the posterior iliac
but we found no reports of spontaneous lumbar hernia. In addition, we found
only a single article in the Japanese-language literature, and none in the
English-language literature, on the appearance of a lumbar hernia on a