Amusibus
Proud Parent
- Aug 16, 2012
- 648
- 606
In the case of bilateral spondylolysis, spondylolisthesis does not narrow the spinal canal-it widens it. What is "slipping" isn't the disc but the entire anterior(front) portion of the bone, carrying the disc along with it. I also have read research on newborns indicating that spondylolysis has never been found to be present at birth, contrary to what was previously believed. The incidence in gymnasts IS higher than the general population or in most other sports-up to 12%. However, this may be because most cases of idiopathic spondylolysis with spondylolisthesis (which seems to be the type you are talking about?) are asymptomatic. Thus in gymnasts it may be that the activity creates symptomatology allowing diagnosis that otherwise would never occur in the general population-ie, it inly SEEMS to be higher in gymnasts because extension triggers symptoms and a search fir a diagnosis. As to what happens to these gymnasts after diagnosis, I defer to Dunno and other experienced coaches.