What are spinal cages used for?
The purpose of using cages is often to restore lost disc height resulting from a collapsed disc and to relieve pressure on nerve roots. Lost disc height is restored when the cages, packed with bone graft are inserted into the space between the two vertebrae.
What is cage subsidence?
Cage subsidence was defined as the sum subsidence of the superior and inferior part of the cage into the vertebral body.
What is Bak cage?
BAK-C is a new autostabilizing interbody cage which is implanted during an anterior cervical procedure to provide stability to the motion segment and allow fusion to occur. The system utilizes surgical site bone graft as the osteo-inductive material within the implant.
What is a PEEK cage made of?
Polyetheretherketone (PEEK) is a non-absorbable biopolymer that has been used in a variety of industries including medical devices. The PEEK cages are biocompatible, radiolucent, and have modulus of elasticity similar to the bone.
How do spinal implants work?
SCS systems have a small implanted pulse generator, called a stimulator, and thin wires called leads. These are implanted into your body. The stimulator delivers tiny pulses of mild electric current through the leads to specific nerves on the spinal cord. These impulses mask pain signals traveling to the brain.
What is cage subsidence in Acdf?
one week) with final follow-up radiographs. Cage. subsidence was defined as the sum subsidence of. the superior and inferior part of the cage into the. vertebral body.
Is PEEK MRI safe?
While acrylic-PEEK implants might offer strength and to a certain extent MRI compatibility (however see Fig. 7, Fig. 8), these implants fall behind in terms of biocompatibility and durability since the acrylic around the implant can introduce complications at the skin margin (Leggat et al., 2009).
How long does titanium last in the body?
When each titanium implant enters the body, it can last up to 20 years. Dental titanium and dental implants can stay in place for even longer than 20 years without any change in quality.
What is a cage used in back surgery?
A cage implant is a piece of hardware used in certain spine surgeries. They were approved by the FDA in 1996, and have been used in minimally invasive surgeries ever since. These implants are porous and usually made of very strong plastic or titanium . In fusion surgeries, cages are placed in the disc space between vertebrae.
What is a cage in spine surgery?
An interbody fusion cage (colloquially known as a “spine cage”) is a prosthesis used in spinal fusion procedures to maintain foraminal height and decompression.
What is a lumbar cage?
It is like a bird cage with a flat bottom and rounded top and has threads on the outside for fixation. The cage is used primarily in the lumbar spine as a disc replacement spacer and is used in pairs – inserted one on the right side of the disc space and the other on the left to give good lateral support.