View Full Version : What are cages and osteotomies?

09-28-2012, 11:13 PM
[B]I see that many people have these and I am just wondering what they are, why are they used? I know my surgeon never used these terms and now I wonder why? OK, thanks for everything!

09-28-2012, 11:39 PM
Hi Laura...

Spinal osteotomies are a small group of procedures whereby a wedge is cut into vertebrae to realign the spine. There are good drawings here (http://www.spineuniverse.com/conditions/kyphosis/spinal-curvature-problems-fixed-sagittal-imbalance) of the Smith-Peterson osteotomy (the most common type of spinal osteotomy) as well as the pedicle subtraction osteotomy, which is mostly used for revision surgeries. There is also an anterior osteotomy.

Cages are spacers that are placed into the disc space (after a discectomy). The cages are usually filled with bone or osteobiologic material to encourage fusion. Cages are used in interbody fusion procedures (e.g., TLIF, XLIF, PLIF, and ALIF). If you Google any of those procedures, along with the word ANIMATION, and you'll be able to see some great examples of how cages are used.


09-28-2012, 11:41 PM
Can't help with the "cage" but I had several osteotomies (never did find out how many) and I believe I can thank the osteotomy for the lordosis I regained.