sciatic nerve


I just did one of those continuing medical education courses — in psychiatry, my very own field no less. It says that people who get a bout of depression are twice as likely to get a bout of back pain. What I read is a meta-analysis.  That means some clever person who probably needed the publication on his (or her) resume did a statistical (and critical) analysis of research other people did. This a noble attempt to asymptotically approach “the Truth and the Light” on a subject. It is also a delightfully erudite way to do research and get a publication without using a lot of time and money that the author had to scrape up.

Look, the relationship between depression and low back pain is something I have seen from every imaginable angle. As a neurosurgeon, it did not take me terribly long to figure out that surgery was not a very good solution for back pain. Of course, we rigorously restricted ourselves to operating focalized sciatica.  Cases where we could reasonably infer that an intervertebral disc seemed to be compressing a distinct (lumbar) nerve root that formed part of the sciatic nerve (plexus) that descended from the spinal cord to the leg and foot. There was the physical examination.  If someone were lying flat on his (more rarely, her) back and their straight leg was raised toward the ceiling, pain would appear on a trajectory anatomically consistent with one of those nerves. This was the sign of Laseque.  And we took it to be as solid as money in the bank. Read more on Depression and Low Back Pain…