Resoning for the use of a cylindrical cage after ventral decompression of degenerative stenosis of lumbar spine

Successful use in over 10 years of cylindrical titanium cages after anterior decompression for degenerative diseases of the lumbar spine, and the lack of justification for its use, led us to carry out mathematical modeling using finite element methods. For 10 years we have operated on more than 1200 patients with a primary spinal canal stenosis caused by disc herniation, hypertrophy of the elements of the spine, and at reoperation for failed back surgery syndrome.